Phineas and Ferb: Night of the Zombie Ponies (28 Pranks Later and Night of the Living Pharmacists)

by Mylittleponyfan21

Rating: everyone
Tags: Applejack, My Little Pony: Friendship is Magic, Rainbow Dash, Thriller, Phineas and Ferb, Comedy, Cutie Mark Crusaders, Rarity, Tragedy, Starlight Glimmer, Crossover
Length: 39159

This is a crossover between 28 Pranks Later and Phineas and Ferb: Night of the Living Pharmacists

When Rainbow Dash's pranking gets out of hand, the other ponies decide to give her a taste of her own medicine. However, Doofenshmirtz's latest "-inator" accidentally turns the ponies of Ponyville into contagious mindless replusive cookie-craving zombie ponies who run rampant all over Danville. Phineas, Ferb, Perry and the gang must work together and avoid becoming mindless replusive cookie-craving zombie ponies themselves.

Published 2022-07-17 20:40:01 UTC
Last updated 2023-04-11 01:12:47 UTC

Act 2

Meanwhile in Ponyville, in Rarity's boutigue, Rarity and Sweetie Belle we're geting ready for the Filly Guide, Sweetie Belle was excited for that and she couldn't wait until that day comes.

"I know you're excited about the Filly Guide Cookie Drive," said Rarity. "But I still have to do a few finishing touches on your uniform."

But after that, Rarity and Sweetie Belle saw a huge cake with Sweetie Belle's filly guide uniform on the top of it, Sweetie Belle took a bite out of the cake while Rarity was confused, due to she saw a note on the bottom.

"Not bad." said Sweetie Belle while munching the Cake.

Rarity grabs the note and opens it to see what it says.

"You asked for it!" read Rarity.

"What does it mean?" asked Sweetie Belle.

"Hmm, I assume this is Dash's idea of a prank," said Rarity progressing. "which can only mean she's rigged some kind of booby trap to your filly guide uniform up there."

"So, how do we get it down?" Asked Sweetie Belle.

"We don't!" Said Rarity. "If Dash thinks I'm going to fall for whatever she's got in mind, she's got another thing coming. There's more uniforms where that one came from!"

Rarity goes to her sewing machine to make a new filly guide uniform, but as she tried to make it work, resulted that it was a sewing machine cake and Sweetie Belle took a bite out of it.

"Hmm." Said Sweetie Belle liking the sewing cake. "The sewing machine cake is actually better than the cake cake."

"RAINBOW DASH!!!!!" Yelled Rarity annoyed.

Rainbow Dash was outside of Rarity's work room's window flying, and laughing at the situation.

"HAHAHAHAHAHAHAHAHAHAHAHA!!!!!!!!!!!!!!!!! GOTCHA!!!! HAHA!!! How was that for effort?" Asked Rainbow Dash as she flys away, leaving Rarity embarressed.

It was nightime at Sweet Apple Acres, and Applejack was preparing traps in case Dash tries to prank her. Apple Bloom entered her big sister's room and saw the traps, causing Apple Bloom confused.

"What's all of this, Applejack?" asked Apple Bloom "I thought you were gonna help me get ready for the Filly Guide Cookie Drive."

"Uh, yeah, sorry 'bout that," explained Applejack "but Rainbow Dash has been on a prankin' tear, and you can never be too careful."

"Do you think Dash is gonna try and prank you in your sleep?" Asked Apple Bloom confused.

"Not if I have anythin' to say 'bout it." Determained Applejack as she turns off her lamp and gets ready to sleep. "See ya' in the mornin' sugarcube."

Applejack sleeps while Apple Bloom walks away from her room to go to sleep too.

The next morining, Applejack yawns and wakes up, but then, she realizes a pig on her bed, laying right next to her.

"Huh!?"

Then, she realizes that she was in a puddle of mud as a cluck was crowing of the morning that rised up in the farm.

"Woah!"

Applejack was losing balance from her bed and fells off from her bed and wents into the puddle of mud.

Suddenly, she heard a pan claking and when she saw it, a simular laughing voice was hearing, and it was Rainbow Dash flying and laughing at the situation.

"Ha! Still think I'm lazy?" Asked Rainbow Dash proudly. "Gotcha! HAHAHAHAHAHAHAHAHAHAHAHAHA!!!!!!!!!!!"

Rainbow Dash keeps laughing and leaves Applejack embarrassed.

"Ugh! RAINBOW DASH!!!!!!" Yelled Applejack angrilly.

As the same pig from the bed throws over to the puddle of mud, causing the mud to slapt all over Applejack.

And so, Rainbow Dash was pulling every single prank on everypony and always says "gotcha" when revealed, first on Cranky with a skunk, then on Spike with a letter to Princess Celestia, making him think that the letter didn't got send, and on the other hand, Celestia got a lot of letters that got send, later on Big Mac by putting a big rock on his carriage causing him to fall down from the hill, then on Mr. Cake by putting a brick on his hamburger, and finally on Cheerline by drawing her ugly on the drawing board, making every filly and colt laughing and appearing behind the board.

Meanwhile on Danville, in the Tri-State Area, in Doofenshmirtz Evil Incorporated.

"Doofenshmirtz Evil Incorporated!" singing gone on.

Agent P lands on the building's ledge with his delta wing and investigates a bit, but then get trapped in a disco ball as a giant robot grabs and puts it up and moves it was an 80's song starts to play while the ball moves around with Agent P trapped on it. While that, the robot and a man with a white lab coat appears out of nowhere and both start to dance with the rhythm of the music.

"Whoo-Hoo! Time to boogie, Baby! Whoo! Whoo!" Said the man while dancing. "My hustle's out of muscle. But I can still shake my brick house or whatever the kids are calling it these days. Hahaha!"

Suddenly, an oven noice hears about a food that was baked.

"Norm, get that doonkelberry pie out of the oven would you?" ordered Doofenshmirtz.

"You got it sir!" Said Norm as he walks away to get the pie out of the oven while Doofenshmirtz keeps dancing.

"Vanessa's having some friends over for a little get together." Said Doofenshmirtz as he turns off the discos ball and music's light switch. "But I disress."

Later he gestured to his latest creation. "Behold! ¡THE REPULSE-INATOR!"

He was walking to the Repulse-Inator and started pushing it to the balcony. "Whoever or whatever I hit with this inator will automatically become repulsive! And wouldn't you know it, my brother Roger is dedicating a new Danville water tower right below my ledge!" He said as he was watching his brother inagurating the water tower. "Once he's hit by a beam from this baby, he'll become so abominable, so disgusting, so hideous, so noxious, so grotesque, so ghastly..."

He was saying the words in a thesaurus dicctionary. "Uh, anyway, Roger will become so repulsive that his popularity will plunge, and mine will skyrocket by comparison, facilitating moi to take over the entire Tri-State Area!!!"

But then, he realized that Agent P was looking at him not amused with his plan.

"Don't look at me like that! Said Doofenshmirtz bothered. "I got a good feeling about this." And he looks at nowhere. "It's gonna happen."

He started walking over at Agent P's repose. "The only trouble with it is that this particular inator requires a lot more power than any other inator I've created for some bizzare reason. And uh, I only have one fuctioning wall outlet in the lab."

Doofenshmirtz shows Agent P his outlet and it has conected a plug that it was pluged with a lot of plugs of the inator as they were craking electricallty. "So, I'm gonna put a lot of strain on that." he said.

Norm arrives with the pie in his robotic hands and gives it to Doofenshmirtz where he was at repose.

"You pie, sir!" Said Norm.

"Thank you, Norm-" said Doofenshmirtz as he touches the pie, but when he did, it was still hot due to the pie was already out of the oven. "OW! OW! This is hot!" he yelled.

Norm takes away the pie from his boss's hands quickly. "Opps, sorry, sir." he apoligized

"Did that just come right out of the oven?" asked Doofenshmirtz angrily.

"Well, my hands are metal." said Norm as he leaves with the pie.

"Well, now mine are bacon apparently." yelled Doofenshmirtz. And while he was shaking his burned hands, he suddenly looks at Agent P. "Look, I'm shakin' bacon!" he said smiling. "You like that? It's called back to something I didn't even hear. In your face, logic!"

Norm arrives with a pot holder under the pie. "Here's a pot holder, sir."

"Thank you." said Doofenshmirtz annoyed of what Norm have done and should have done that from the beginning as Norm walks away to where he was.

"I'm gonna take this downstairs to Vanessa. Party on, Perry the Platypus!" Said Doofenshmirtz as he turns on the disco ball's switch with Agent P trapped and music on, and leaves his lab.

Meanwhile, back at Ponyville, in Sugar Cube Corner, Pinkie Pie was puting cupcakes for delivery, until Twilight and other ponies of Ponyville were worried about and wanted some help from Pinkie.

"Pinkie." Said Twilight making Pinkie Pie drop the box of cupcakes. "We need your help."

"Ok! For what?" Said Pinkie Pie confused.

"Are you honestly going to stand there and tell us you know nothing about all the pranking Rainbow Dash has been doing?" Growled Rarity.

"Oh, no! She's been pranking up a storm!" Answered Pinkie Pie.

"Did she get you, too?" Asked Fluttershy.

"Oh ho, yeah!" Laughed Pinkie Pie. "She and Gummy both!"

And a flashback of Pinkie Pie opening her closet appears, and...

Rainbow Dash was climbing up the closet's hook along with Gummy and scared Pinkie Pie. "Boo!"

Pinkie Pie screamed by later laugh at the prank Rainbow Dash done to Pinkie Pie, since she always likes pranks, especially to her. And the Flashback ends.

"They got me good!" Said Pinkie Pie smugly.

"Well, she needs to stop!" Objected Applejack.

"Stop?" Asked Pinkie Pie shocked. "But, pranks are so much fun!"

"Well, not for everypony." Said Twilight upset. "And it doesn't seem like Dash is taking the time to find out of who enjoys them and who doesn't." Everpony grumbled, agreeding at Twilight's speech.

Rarity got closer to Pinkie to tell her something.
"Uh, since you and Dash share such an...affinity for pranking, we thought you might br able to get her to, um, uh...QUIT IT!!!???"

"For the sake for everypony, you got that?" Asked Twilight anxiously.

Pinkie Pie was looking at everypony's faces and got nervous because she doesn't know what to do or say to everypony that got pranked and to Rainbow Dash. "Ehh, I don't know if I can, I might hurt her feelings." she sasi

"Well her feelings have to hurt, because if she keeps ranking, we're going to avoid her forever." said Twilight.

"Yeah!" agreed Everypony.

Pinkie Pie sighed, having no other choice but to do it, she knew that she knows a lot of pranks than any pony does. "Okay, I will." she said, causing everypony to cheer up.

"Great!" exclamed Twilight saticfied. "Now get out there and tell this prankster rainbow to quit it."

Pinkie leaves Sugarcube Corner as she now going to tell Rainbow Dash to quit pranking, she didn't want to do it, but she was the only one who can tell her stop since she was all with Dash in her pranks.

To be continued.

Act 3

Meanwhile, at the Flynn-Fletcher backyard, the children were ready to try out the rubberization ray a get their skin rubber-qualites.

"Ready Baljeet?" Asked Phineas.

"Ok." said Baljeet as he got zapped by the rubberization ray. "Wuh, I feel the same."

"Try jumping up and down a little." Requested Phineas.

Baljeet was jumping and was delighted that it worked, "Woo Hoo!" he yelled joyfuly as he went to a branch of a tree to hit it a couple of times.

Buford after seeing this, we want to do the same thing. "Ooh! Ooh! Now me!" and he got zapped and went to hit the same branch of the tree like Baljeet did ago. "Awesome!"

"Me next!" said Phineas as he also got zapped by the ray. "Come on Isabella!" He said as Ferb zapped himself.

"Hit me with your bounce shot!" Said Isabella as she got zapped.

The children were bouncing and got out of the backyard and bounce joyfuly all over the neighborhood, all the way to the mall, they were laughing hoping all over the city, even on the pink clouds. No one in the city notice them, so they bounced in the bulidings too.

Isabella was hoping up and down on the sidewalk, until she got to a similar building, it was the Fireside Girls Annex buliding and she suddenly remember to meeting with the Fireside Girls she didn't have to miss.

Meanwhile, inside the buliding, the Fireside Girls were waiting for Isabella to come.

"Isabella said she'd be here, she'll be here!" said Gretchen

"I bet all the muffins that wherever she is, it has somthin' to do with Phineas!" Said Holly.

Suddenly, they heard a knock on the window and Gretchen went to open it to see what or who it was. It was Isabella and she sat in the windowsill. "Hi Gretch!"

"Where have you been?" Asked Gretchen.

"I was over at Phineas' house and was rubberized by a machine they built." Responded Isabella.

"Holly gets the muffins" said Gretchen delighted.

"Look," asked Isabella. "you know that Emotional Bravery patch I was all set to earn?"

"Yeah?" said Gretchen.

"Well I'm totally blowing it!" said Isabella worried. "I feel strong when I walk up to Phineas, but as soon as I open my mouth, I completely choke!"

"Oh Isabella, you're overthinking it!" said Gretchen. "You just need to jump right to it!"

"What do you mean?" Asked Isabella confused.

"Just tell him how you feel!" determed Gretchen. "I mean, you've had plenty of chances, but then you overthink it. It's not like he's gone reject you, you know he thinks you're cute!"

Isabella wasn't so sure about it. "Well, yeah, but-"

"No buts, Isabella!" interrupted Ginger standing next to Gretchen. "You'll never know how he feels unless you tell him first! And who knows? Maybe he feels the same."

"Heck, he does, he just doesn't know it yet." finished Adyson.

"So what do ya say Izzy?" asked Gretchen. "After all. You could earn a new patch."

Isabella thinked about it for 3 seconds, and she knew that they were right. So she decided to tell Phineas how she feels this time. "You're right!" she said. "I should tell Phineas how I feel! Later girls, gotta bounce!" And soon she bounced off the building, but later came back again. "Literally!" She said as she bounced off again to do what the Fireside Girls told her to do.

Meanwhile, In Ponyville, Pinkie Pie was walking over at a cloud where was Rainbow Dash's house and tries to tell her about the pranking she we doing.
"HEY RAINBOW DASH!!!" she yelled. "I HAVE SOMETHING REALLY IMPORTANT TO TELL YOU!!!"

Rainbow Dash was looking outside of her window and saw Pinkie down on the ground. "Pinkie, hey! I actually have something totally important to tell you!" she said.

"Ooh! You do!?" Asked Pinkie as her hoofs were shaking in excitement "You go first!"

Rainbow Dash was looking left and Right to the if no pony was hearing or looking on them. "Okay. You know how I've been pranking everypony?" she asked as she was giggling about it.

"Yeah!" Giggled Pinkie Pie. "It's pretty funny!" but later she remembered what everypony told her to do. "I-I-I mean, actually, that's what I have to talk to you about." she said.

"Here," said Rainbow Dash while grabing something from knowhere. "have a cookie." she said while having a box of cookies.

"Ooh! Thanks!" Said Pinkie Pie as Rainbow toss a cookie upwards to Pinkie, which she catch it with her mouth and started eating it.

"So I got thinking." continued Rainbow Dash. "Why waste my time pranking everypony at a time when I could prank everypony at once?

Pinkie Pie was eating the cookie and later she swallowed it. "Mmm. Everypony at once!?" Asked Pinkie Pie joyfully. "That sounds amazing!" she said while she bounced about the idea, but later a record needle scratches, meaning that Pinkie still remembers what everypony told her to do. "Gah!, what! I mean, it's not..."

"You don't know what it is yet!" cried Rainbow Dash as she looked around again to see if any pony was looking or hearing them. "Pinkie, this is gonna be the best prank ever!" she continued as she shows the box of cookies to Pinkie. "I special ordered these joke cookies so the color would match my mane."

"And?" asked Pinkie Pie confused.

"And, I'm gonna switch them with filly guide cookies." continued Rainbow Dash as she puts a cookie inside Pinkie' mouth, taking out something that looks like rainbow smears on Pinkie's mouth. "When Scootaloo and her friends sell them, everypony in town's get a rainbow mouth courtesy of Rainbow Dash!" she said she laughed a little. "It's gonna be so awesome!" said while she takes Pinkie to a pound of water to make her see the rainbow smears that she got on her mouth.

But when Pinkie Pie saw the rainbow muzzle on her mouth, she remembered about everypony's arguments of Rainbow Dash's pranking, and also, she didn't find it longer funny at all. "Uh, I don't know." she said. "I mean, it doesn't really seem all that funny."

Rainbow Dash gasped of what Pinkie said. "WHAT!?"

"Maybe this is a good time to stop pranking," said Pinkie pie. "The other ponies in town are really-"

"STOP!? Interrupts Rainbow Dash. "NO WAY! This prank is happening, Pinkie! And it's gonna be HILARIOUS!!" she said as she gave the box of joke cookies to Pinkie and rushed away at the speed of light.

Pinkie Pie saw her leaving and realizes that Rainbow Dash was messing up, as she ate another cookie, she came up with a plan to tell everypony what Rainbow Dash was gonna do. (But without knowing that something out of Equestria was gonna stop Pinkie and everypony and ruining their prank for good.)

Meanwhile, back at Danville, at Doofenshmirtz Evil Inc. It was night time, and Candace, Vanessa and her friends were at the buliding's living room preparing for their movie night.

"Doofenshmirtz Teenage Girl Movie Night!" sang the singing.

"So I thought we could watch the foreign art film I found." said Vanessa hold she holding and showing up a DVD box. "Le Coeur Noir De Douleur et de la Tristesse Douce."

"Is that the one that's the neo-realistic portrayal of women's angest?" asked Dana.

"No, that's the other one." answered Heather. "This one is about enmui."

"Hmm, don't know if I've seen that one." said Candace. "Is it animated?"

"So Janice." said Lacie while she got closer to Candace.

"Candace." corrected Candace.

"You look pretty young to have lost you v-card already, but that's pretty rad I guess" said Lacie.

"My what card?" asked Candace confused.

But Birgitte interuped and Ignored Candace. "Did you download the new Apparatus album?"

"No way. They're sellouts." answerd Lacie. "I'm only listening to Coffin Shadows now. They're so Independent, they pay you to download their songs."

"Hmm, Coffin Shadows" asked Candace with curiousity. "I've never heard of them."

But Lacie keeped ingnoring Candace like if they don't care about her presence, or she doesn't exicist to them. "New skirt?" she asked.

"Yeah," answered Birgitte. "I truned it inside out ripped it in half and then sewed it back together."

"Get your brother to run over it a few times, it really weathers it!" said Lacie.

Candace giggled in awe about the cooler girls she was with. "Wow, you guys know everything!"

Suddenly, a knock on the door was heard and Doofenshmirtz came in announcing himself sing-songly before any of the girls could answer the door. "Hello ladies! I'm here with a homemade dookelberry pie!"

Vanessa rushed quickly to her dad before the girls could hear them. "Dad, I thought you were going to stay upstairs! I've got the snacks covered."

"But pookie, I thought you loved the dookel-boonkel." said Doofenshmirtz in a baby accent.

"Yes I do, and I thank you." said Vanessa as she quickly grabed the pie away from her dad, glaning back at her friends to make sure they weren't looking and/or hearing. "But please, Dad."

"A-are you watching foreign films?" asked Doofenshmirtz.

"Dad!" cried Vanessa as she pushing her dad out of the door.

"Maybe I could join you guys for a lively discustion." said Doofenshmirtz.

Vanessa was closing the door to Doofenshmirtz. "Goodbye Dad!"

"Y'know, I can't stay anyway." continued Doofenshmirtz. "As we speak, my nemesis is upstairs trying to work free from a trap that..." but Vanessa continued pushing him out. "So even if-if you wanted me to stay, I, uh...Bye." said Doofenshmirtz while the door was finally shut.

Candace ran to the bathroom to call Stacy and informed her about the movie night she was on. "Stacy, this is amazing!" she said joyfully. "I'm at an actual party with cool older girls! They know everything! They're so AHHHH!! They're wasmoe! You've gotta get over here."

Meanwhile at Stacy's house, Stacy walked over to the couch, smiling proudly as she held up a remote. "Candace! I'm so proud of myself! I think I totally hooked up this thing up! It's Incredible! It has picture-in-picture-in-picture!" she explained. "I'll be able to watch a show and then another show inside that show and then the first show again inside that one! And I managed to get it down to one clicker! I'm about to give it a whirl!"

But as soon she pressed the power button on the remote, nothing happened. At least, not on her TV, but in somebody else's TV that can see in her window. She did the same thing over and over again and the same thing happened.

"Okay. Maybe there's still a bug or two to fix..." said Stacy disapointed of herself.

To be continued.

Act 4

Meanwhile, back at Ponyville, Rainbow Dash was heading towards Sugar Cube Corner to see if Pinkie Pie was here, when she entered, she was wondering why Pinkie didn't show up for the prank.

"Pinkie, What's the deal?" she asked as she was walking over to the stairs to Pinkie's room. "I told you I needed your help switching out all the filly guide cookies for the joke cookies. But when you didn't show, I had to do all by myself!"

But when Rainbow Dash entered Pinkie's room, she saw her in her bed, and when Pinkie turned around, she was sick, she still had the rainbow muzzle in her mouth, and even weird, her colors were dulled, instead of Pink, she was grey, and her mane and tail were still poofy though.

When Rainbow Dash saw her like this, she got closer and chuckled a little. "Wow. Your face is still pretty rainbowfied." she said.

"Yeah." answered Pinkie pie while she coughs. "I haven't been felling well, and these joke cookies are the only thing that makes me feel better."

Pinkie was gonna grab another cookie, but when she was gonna do it, she looked at the box and realized that it was empty.

Pinkie rushed over to Rainbow Dash angrilly. "YOU DON'T HAVE ANYMORE, DO YOU?!"

"Uh, no. I just told you, I used them all for the prank." responded Rainbow Dash.

"Oh yeah, I forgot." said Pinkie as she lays down on her bed.

Rainbow went to the room's staircase as she giggled a bit for her prank. "Pretty soon the CMC's will start selling them to everypony in town." she said. "Ponies will open their boxes and start eating, then all of their teeth will turn rainbow colored, and they'll know it was me! It's gonna be awesome!" Later she went to Pinkie's bed and grab her sheeds so Pinkie won't miss anything from the prank. "Come on! You don't wanna miss it!"

But Pinkie knew Rainbow Dash as messing up as she refuses to get up from bed, knowing what Rainbow Dash was gonna do.

"Actually..." she said as she coughed again. "I don't think I can even stand up..." later she swinged over to Rainbow Dash. "UNLESS YOU GOT MORE COOKIES!!!" She said in a raspy voice.

Rainbow Dash backed up in shock of Pinkie's behavior, knowing that it wasn't normal. "AHH! On second though, maybe you better stay here and rest."

Pinkie noods her head and sighs as she turns around again. "Yeah. You're right. Sorry I missed out. I'm sure it's gonna be hilarious."

Rainbow Dash was thinking about Pinkie's behavior, wondering if she was really sick or she's just faking it, but she leaved Sugar Cube Corner and get prepared for the prank.

Meanwhile at Danville, at Doofenshmirtz Evil Inc. Doofenshmirtz was going to his lab to see if Agent P was still on his trap. He opened the door and turned off the disco ball's switchlight. "Ok, the party's over Perry the Platy-"

But when he looked at the disco ball, he looked that it was empty, meaning that Agent P escaped his trap. Agent P swinged over to Doofenshmirtz and pinned him on the floor, causing Doofenshmirtz to exclaim pain and surpise. "Ow! Oh! Aw, man! Ah!" said in pain.

By the time Agent P pinned him on the floor, Doofenshmirtz looked at Agent P with a suggest. "Ah, not to be high-maintenace or anything, but do you mind if we can fight a little bit quieter? Uh, the girls are having a movie night and I don't wanna dis-"

Agent P letted go of Doofenshmirtz and walked over to the couch, causing Doofenshmirtz confused. "I didn't mean you to walk away! We can still continue to fight! It's just that-"

Agent P came back with a pile of pillows and gave two to Doofenshmirtz and he whacked one at his face, causing Doofenshmirtz smiling about Agent P's meaning of. "A pillow fight! Perfect! It's violent and quiet! It is on!" he said while he got prepared to attack.

They started whacking each other, Agent P only succeed on whacking Doofenshmirtz, while Doofenshmirtz only fails since Agent P was always dodging the attacks Doofenshmirtz was gonna give to him.

"Aw, come on! Do I get to land one or not?" Doofenshmirtz asked by later, Agent P whacking his face three times. "I take that as a no?" he asked again.

Agent P later he flung the pillow into the air and kick it to Doofenshmirtz's face, causing Doofenshmirtz to fly backwards and hit the wall, almost breaking his TV.

Doofenshmirtz later, he went to the couch and got up, splating some feathers in his mouth. "Talk about 'down in the mouth'. Get it?" he joked. "It's uh...ah whatever. Meet my friends," he said while grabing his couch's cushions. "Poly and Ester!"

He threw 'Poly' at Agent P, but Agent P ultimately dodged it again. Though, it did hit something. 'Poly' slammed the fire button of the Repulse-Inator and it was having a power surge and it was overheating to much. "Uh, oh, I think it's overheating." said Doofenshmirtz as he notices the sparks of electricity on the inator.

The inator powered up itself and fired it's direct target, Doofenshmirtz went to see if the beam was gonna zap his brother, Mayor Roger Doofenshmirtz, who was still giving his speech in front of the new Danville water tower, however, a portal opened out of knowhere, causing the beam to be send to another universe.

Meanwhile, back at Ponyville, at Sweet Apple Acres, Applejack, Rarity and the CMC's were getting ready for the filly guide sells on Ponyville as they were packing up the boxes of joke cookies, thinking that they were the filly guide cookies to the carriage.

Rainbow Dash arrived as she saw everything ready. "Alright, who's ready to sell some cookies?!" she asked in excitement.

"Me!" cried the CMC's delightly.

But while that, the same portal opened and striked Doofenshmirtz's Repulse-inator's beam, it zapped the boxes of joke cookies, some pieces of static and sparks were surrounding the joke cookies, causing a different effect on them, especially the rainbow muzzle inside the cookies. But none of the mares or filies noticed the stadic surrounding the boxes.

Applejack and Rarity got closer and Applejack started conforming Rainbow Dash about her pranking. "Look here, Rainbow Dash, I know you've promised Scootaloo you'd help out, but I don't want none of your pranks ruinin' these filies night."

"Look, I'll be with you the whole night, so you can totally keep an eye on me." said Rainbow Dash.

"Come on Applejack! Let's get started!" said Apple Bloom.

"Yeah! We got a lot of ground to cover!" continued Scootaloo.

"We wanna hit every house in Ponyville!" ended Sweetie Belle.

The CMC's went running with the carriage of joke cookies to do the sells on Ponyville, but they didn't notice the static from Doofenshmirtz's Repulse-inator's beam surrounding the boxes, neither do the CMC's older sisters.

Rainbow Dash excited about everypony getting their mouth rainbowfied. "Come on! You heard her! EVERY house in Ponyville! heh, heh, heh!" she said as went off with a smug on her face.

Applejack and Rarity were a bit worried about Rainbow Dash's pranking, so they agreed on keeping an eye on her and leaved to help the CMC's cookies sells.

Meanwhile, back at Danville, at Doofenshmirtz Evil Inc. Doofenshmirtz was watching from the balcony, seeing how that portal opened and made the beam went into it. Suddenly, he notices the inator rumbling.

"Run! IT'S GONNA BLOW!!!" He yelled warning his nemesis about the explotion that's gonna happen. Agent P so did, he ran away as fast as he could to avoid the explotion. But only to get trapped under a see-through box with an anvil and a box of bowling balls covering it.

"Ha! Trapped ya'! You fall for everything Perry the platypus! 'It's gonna blow!'" he mocked and scoffed as he gestered to the machine with static around it. "As if, as if I would know ahead of time when something's going to-"

But before he could even continue, the inator overheated, causing a minor explotion on the balcony. Doofenshmirtz just stood there awkwardly with his face burned and his lab coat ruined. "That was purely coincidental!" he said.

Later, he turned around to the ledge of the balcony to see how the beam went into that portal. "But I don't know where did the beam head to, I-I saw that portal opened out of knowhere. I swear I did not opened that portal, It opened by itself and send the beam to another universe."

But then he remembered anything of the inator's effects that can hit anyone or anything and he smiled. "But whoever or whatever got hit by the beam, is gonna be repulsive now!" He said.

To be continued.

Act 5

Meanwhile, at Ponyville, at Fluttershy's cottage, The CMC's were knocking on the cottage's door, Fluttershy opened to see if Rainbow Dash was pulling another prank on her. But Harry the bear growled to scare Rainbow Dash, causing not only Rainbow Dash, but also the fillies being scared and the CMC's scream in panic.

But Fluttershy touch Harry, meaning that everything is okay and only want the cookies. Harry was confused about it, but if she said it was okay, it was okay. As soon as Fluttershy was giving a bit to the CMC´s, Rainbow Dash waved scaredly to Harry and Harry warn Rainbow Dash that he was keeping an eye on her. But neither do Fluttershy or Harry noticed the stadic of Doofenshmirtz's Repulse-Inator's beam surrounding the box of joke cookies.

As soon the CMC's and their older sisters were gone, Fluttershy and her animals were preparing for the zombie prank to scare Rainbow Dash, but when Fluttershy opened the box and gave each cookie to her animals. Fluttershy and the animals took a bit out of one cookie, but once they did, their mouths got rainbowfied, but also, static started surrounded Fluttershy and her animals, they were all moaning and groaning in pain, as static started to grotesquely transform them all. Suddenly, they all fainted and collapsed to the floor and stood there as static was surrounding them.

Meanwhile, the CMC's and her older sisters arrived at Twilight's castle, as the CMC's knock the door, Twilight opened it by using her magic and along with Spike, who was excited for the cookies, the CMC's and Rainbow Dash gave the boxes of joke cookies. Twilight have grabbed a coin from her bit bag, but Spike touched her and Twilight rolled her eyes not amused and got out other four bits and gave them to the CMC's and grab the cookie with her magic and went inside her castle. Without noticing the static from the Repulse-Inator surrounding the boxes.

But again, when the CMC's and their older sisters leaved, Twilight and Spike were ready for the prank for Rainbow Dash, but once they took one cookie and took a bite, their mouths got rainbowfied, but also, Twilight and Spike started to feeling something different and started moaning and grunting in pain, static were surrounding these two. Starlight Glimmer appeared from a part of the castle, but when she saw what was going on, she quickly hide behind a wall, as she was watching from the wall how the Princess of Friendship and her assistant were grotesquely transforming. Suddenly, Twilight and Spike both fainted and collapsed to the ground as static keep surrounding them. Starlight teleported to Trixie's to tell her about what she had saw.

Meanwhile, The CMC's we're at the Noodles' house, Matilda was receiving 3 boxes while Cranky was giving 3 coins to the CMC's, without noticing the static surrounding the boxes, when the CMC's we're gone, the two donkeys went into their house and get prepared for the prank, however, the same happened, the two donkeys grabbed a cookie and took a bite, static was surrounding them, they were groaning and moaning in pain and started transforming and fainted to the floor while static was still surrounding these two.

And so they did, everytime the CMC's were giving cookies to, the same happened to everypony that were part of the prank to scare Rainbow Dash. First on the Cakes (including Pinkie Pie), later on Big Mac and Granny Smith, and finally on Cheerline, and they all took a bite, static were surrounding the Cakes (and even Pinkie Pie, and she can't believe it duo to the static was not part of the prank), Big Mac, Granny Smith, Cheerline and other ponies that were part of the prank. They were all grotesquely transforming and fainted while static keeped surrounding them.

Meanwhile, the CMC's and their older sisters were walking all over Ponyville, Rainbow Dash was laughing about her prank while Applejack, Rarity and the CMC's thought that she was laughing at all the pranks she made, so they keep going until it was afternoon and finally nighttime on Ponyville.

They stop and saw that they sold much of boxes, without noticing the static around them.

"I think you three should be real proud. Y'all did a mighty impresive job for your first go-around!" said Applejack delightly.

"You took the word right out of my mouth, Applejack! Said Rarity. "Isn't that right, Rainbow Dash?"

But Rainbow Dash didn't answer, Rarity turned around and she saw her looking at knowhere. Rainbow Dash was preparing for everypony to get out of their houses with their mouths rainbowfied. "Any minute now!" she said.

"Uh, "any minute now!" what?" asked Applejack confused.

"Huh? Oh! Uh...nothing!" Said Rainbow Dash. "Have you guys noticed how quiet it's gotten? I mean, it's still early, right?"

"Of course it's quiet. Ponies can't talk while eating those fabulous cookies." said Rarity.

"You think?" asked Rainbow Dash confused.

"Of course. They're all probably in a cookie coma right now." Said Rarity smugly.

"Huh. Maybe you're right. I'll go check." Said Rainbow Dash as she rushed off, leaving Applejack, Rarity and the CMC's confused.

Rainbow Dash was checking all over Ponyville to see if anypony had still their lights on. But everything was quiet, Rainbow Dash got a bad feeling about this. "What is going on?" She asked.

She keep checking every house's uper windows, but no pony were there. "Okay, definite cookie-eating, but where is everypony?" she asked confused. "They must have seen their rainbow mouths by now. They should all be running out the street. Unless everypony went to bed early."

Rainbow Dash rushed over to Sugar Cube Corner to tell Pinkie Pie about this. She entered into her room from it's Windows and looked left and right and entered. "Pinkie?" she called.

But when Rainbow Dash got to the ground, she accidently squashed something and it was an empty box of joke cookies, and there is where she finally notices the static of Doofenshmirtz's Repulse-inator's beam surrounding it and she notice the muzzle and the static of said inator surrounding the muzzle on her hoof.

The static was starting to surround her, but she rushed quickly to the nearest sink and took the muzzle off of her hoof before static could affect her. "Phew! What the heck was that, I felt like if that was gonna...uh! I don't wanna even imagine! I wonder if that happen to everypony?"

She she got back to Pinkie's room and carefully tries not to step the joke cookies duo to the static. "The whole town got the cookies, and now everypony is shut up in their houses." she said. "Don't you think there's something wrong with the joke cookies, do you? I mean, whatever it has surrounding the cookies and the muzzle and trying to affect me, might have cause a different effect on them."

Suddenly, she heard a loud crash that came from the kitchen and she rushed off to see what was that. But when she arrived to the kitchen, she saw Mrs. Cake munching something.

"Mrs. Cake! Phew!" she said in relief. "Have you seen Pinkie? I was thinking that I might have something to do with her not feeling great, well, not at all, I've just discovered something else that I have nothing to do."

But Mrs. Cake didn't answer as she was still munching something, causing Rainbow Dash confused. "Uh, Mrs. Cake?"

Rainbow Dash got closer to her and touched her to see if she could react, Mrs. Cake turned around but...

"COOOKIEEEE COOOKIEEEE!!!!"

Mrs. Cake has turned into a zombie like, she got her rainbow mouth, her colors were dulled, her hair was wrinkled and even worse, some pieces of static from Doofenshmirtz's Repulse-inator's beam we're surrounding her. She seems to Say nothing else but 'cookie' over and over again with a raspy voice.

Rainbow Dash's suggest wasn't wrong as she got scared for a bit after that and backed off. "Uh, I can see you're busy! I'll come back!"

Rainbow Dash keeped backing off as she saw the zombie pony trying to touch her, bit then she steped into a box and triped and felt backwards. She saw the kitchen accesory door open and it was Pinkie Pie, who was unfortunatly a zombie pony too, with static surrounding her.

"COOOKIEEEE!!!!" groan the zombie pony.

Rainbow Dash screamed in panic as the zombies were getting closer slowly to Rainbow Dash, she turned to see the baby twin cakes turned into zombie ponies and with static surrounding them. Rainbow Dash was surrounded by them knowing that it was her end.

To be continued.

Act 6

And so, Rainbow Dash was surrounded by zombie ponies, but then she remembered that she can fly, so she flew up to see the Cakes and Pinkie turned into zombie ponies, and worst, with static from Doofenshmirtz's Repulse-inator's beam surrounding them, she rushed off from Sugar Cube Corner to get some help.

Unfortunately, all of Ponyville's habitants have turned into zombie ponies, and with static from the Repulse-inator's beam surrounding them. Rainbow Dash was scared to see everypony turn into zombie ponies. She rushed to somewhere to hide, or some pony to help her.

She landed on the ground and she heard a munching behind her, she turned around to see Twilight and Spike eating the cookies from a box. She got closer and tell them about the situation she was on. "'Twilight! You've gotta come with me to Sugar Cube Corner. Something's going on with the Cakes!" She said while gasping. "Well, not exactly. I mean, it may have something to do with these joke cookies! And whatever is surrounding them, might have something to do with!"

But when Twilight and Spike heard her, they turn around, only to reveal that they were now zombie ponies, with their mouths rainbowfied and static surrounding them.

"COOOKIEEEE!!!!" groan the zombie alicorn and zombie dragon.

"Oh no!" said Rainbow Dash in horror as she rushed off from them.

Rainbow Dash arrived at Fluttershy's cottage, worried for the situation, then she saw Fluttershy and her animals and foto closer to them, she touched her to see if she's fine, but...

"Fluttershy-"

Fluttershy revealed herself as a zombie pony too, with her animals, who were now zombies as well. And with static surrounding them.

"COOOKIEEEE!" groan the zombie pony by then Harry the bear (who as a zombie too) growling at Rainbow Dash.

Rainbow Dash rushed away to find somewhere else to hide.

Rainbow Dash arrived at Sweet Apple Acres and got inside Applejack's house and barricade the house's main entrance whit everything she could find, suddenly she heard a moaning and turned around to see what or who it was.

"COOOKIEEEE!!!!"

It revealed as Zombie Ponies Granny Smith and Big Mac, get closer to them.

Rainbow Dash got horrified broke the door and rushed away from Sweet Apple Acres as the zombie ponies got put of the house slowly.

When Rainbow Dash leaved Sweet Apple Acres, she was finding somewhere to hide, but then she saw a portal and without thinking about it, she went inside of it, bit what she didn't notice is that the portal was a few inches from Carrousel Boutique.

Rarity, Applejack and the CMC'S were outside, just arrived as Rarity was opening the boutique with her keys.

"You sure you don't mind us all comin' over?" asked Applejack.

"Oh, of course not!" answered Rarity. "I think the girls have earned a little celebration for all of their hard work. And I have plenty of sewing machine cake left over."

But later she used her magic to grab a box of joke cookies with static surrounding it. "Unless any pony wants a cookie."

But later they heard moaning and groaning, and the two mares and three fillies saw what it was, it was the zombie ponies entering into the same portal that Rainbow Dash entered into, they got worried and knew that something was wrong.

"Uh, Applejack?" said Rarity nervously.

"Yeah?" respond Applejack, who was also nervous.

"Is this part of the prank?" Asked Rarity worried and confused.

"Ah don't think so, somthin's wrong of why every pony is entering into that portal." Answered Applejack confused.

Rarity looked at the box of joke cookies and she screamed a little as she drops it, realizing the static surrounding it.

"What's wrong, Rarity?" asked Applejack.

"The box of joke cookies! It's being surrounded by something weird! Don't touch them!" Exclamed Rarity.

The CMC'S went to the carriage of boxes and realized the static surrounding them, the screamed a little as the backed off.

"Uh, guys, I don't think that's the only box, look!" said Sweetie Belle as the mares looked and saw that she wasn't wrong.

"Oh, thank goodness, what on celestia is that surrounding the boxes?" asked Rarity worried.

"Ah don't know but whatever it has surroundin' the boxes, it must been the job of somthin' or some pony of ruinin' the prank, either by accident or with the intention to harm us." said Applejack upset.

"How are we going to find out Applejack?" asked Apple Bloom.

"Ah suggest that we must head into that portal to find out" answered Applejack. "C'mon!"

They all nod their heads and went inside the portal, leaving the carriage of joke cookies behind. Once they got inside the portal, they realized that they were in another universe.

"What is this place?" asked Scootaloo.

"I don't know, but it looks like a city, and I don't think it's Manehattan, I have a feeling that we might be in a multiverse situation." said Rarity worried.

Suddenly, they saw a wave of zombie ponies far away from they were in repose.

"C'mon, let's go to find out about this!" said Applejack as and the others follow her.

They lean behind a building to hide from them, when they the looked behind the building, they couldn't believe where they were at.

They were in a city of the human world (AKA Danville) and though, it was also nighttime, like in Ponyville, and saw Zombie Pony Mrs. Cake getting closer to where the water tower and it's ceremony was, they were watching from the wall of the building to see what was going to happen.

"Don't you guys have a feeling that something really wrong is going to happen?" asked Rarity while she whispered.

"Eeyup, Ah also have that feelin' too." whispered Applejack as the CMC's nod their heads.

Roger Doofenshmirtz, the mayor of Danville, was still giving his speech in front of the new water tower, but as soon he saw Zombie Pony Mrs. Cake, he thought that someone send a visitor to give it's own speech.

"Oh, look what we have here!" said Roger delightly but then thinking himself about. "why nobody told me about someone else was gonna give it's own speech, let's give a big applause to-"

But as he lead his hand to the Zombie Pony, it did something that the mares and fillies couldn't believe. It bite Roger's hand and static started to surround him, he started moaning and grunting in pain. Everyone gasped in horror, seeing their mayor beginning to grotesquely transforming. His glasses fell off his face and broke right before he collapsed behind the podium.

Applejack, Rarity and the CMC's couldn't believe what they saw, but they got prepared for something more worst than that.

Roger climbed up from the podium and revealed himself, he was a zombie pony like of himself with rainbow muzzle on his mouth, his colors dulled, his mane wrinkled, mindless and worst with static from his brother's Repulse-inator's beam surrounding him. But what was weird is that he still had his glasses on for some strange reason.

Everyone screamed and begin to run and scatter in panic.

Applejack, Rarity and the CMC's were shocked at what they're witnessing.

"Ah thought we agree that we only scare Rainbow Dash. Not humans and turnin' them into our pony species with everythin' from the prank!" whispered Applejack in shock.

"I think you're right, Applejack, we need to find out about the thing and the pony responsible for all of this." determined Rarity. "Come on!"

The ponies went off to investigate something that ruined Ponyville's prank to scare Rainbow Dash.

"What happened to mayor Doofenshmirtz?" said a random lady as she gasped.

The zombie pony was walking slowly and uttering 'cookie' repeatedly as walked over to Melanie, the mayor's assistant and bit her right arm, she screamed in panic and pain as static was surrounding her and transformed her into a zombie pony with the same features of the zombie ponies and repeating the same word.

The zombie ponies transformed and from Ponyville walked all over the city, biting some random citizens that tried to flee from the scene. More and more human citizens were being transformed into zombie ponies, some of the earth ponies, and others unicorns and pegasi, and repeating 'cookie' over and over again. They were continuing to spread the sickness all over Danville. It was a chaos.

To be continued.

Author's Note

Hey guys, sorry uploaded this late, I was thinking to upload it in the date of my birthday, but my house doesn't have good internet. But here it is. My computer isn't set up, so I'm doing as well as I could from my phone.

Act 7

Meanwhile, in a part of the Tri-State Area, the kids were bouncing joyfully all around the city.

"Whoohoo!" yelled Phineas joyfully as he keeps bouncing.

The kids saw that the sun was set, and it was completly dark, aside of the street lights, so they bounced to a vacant street so they could get to they're home quickly.

Isabella was catching up to the boys after her little reunion with the Fireside Girls, she was decided to tell Phineas how she feels for him, she wasn't nervious at all, she only has to do what the Fireside Girls told her to do. "Phineas! Hey Phineas! I need to talk to you!"

"Okay." said Phineas, unknowing that it was serious.

"No, I really need to talk to you and I'm gonna jump right into it!" said Isabella as she stopped Phineas from bouncing by holding his shoulders, causing Phineas confused. "The thing about that Emotional Bravery patch is that I need to tell you-"

But before she could continue, a simular voice is heard to her ears and turns around to see who it was. "No! No! Get away!"

"Mrs Feyersied?" She said recognizing the voice, she was upset about that her chance was interrupted, but she had to go and help her since she's now a third-aged person, that's what a good Fireside Girl does. "One second please?" said Isabella as she rushed off, causing Phineas confused.

Isabella darted right down the street lifting her belt and changed her clothes into her Fireside Girl uniform. She ducked and got closer to Mrs Feyersied who was on the ground. "Good evening, ma'am! Fireside Girl Isabella Garcia-Shapiro Troop 46231. What's your emergency."

"Cookie-Cravin' Zombie Ponies! COOKIE-CRAVIN' ZOMBIE PONIES!!!" yelled Mrs. Feyersied as she stood up and screeched easily, throw her arms and fled from the scene, followed by a couple of terrified citizens, causing Isabella confused. "What does that even mean?" she asked.

Phineas was watching a few terrified citizens and tourists running through him, causing Phineas confused, The boys landed to the ground and were also confused, having no idea what is going on.

"What's everybody running from?" asked Phineas.

Baljeet gasped and saw where they were running from and pointed to certain direction. "Uh, perhaps that?"

They all looked to see what it was, and it was Irving, their neighbor standing by himself with his phone, Phineas was confused about why everyone was running away from him. "Irving?"

"Hi guys!" said Irving as he waved and smiled.

But Baljeet cracked his voice and pointed to the other direction. "No, that! Over there!"

The boys looked to the other direction pointed and saw the scene of chaos. Zombie pony-like creatures rampanting and bumping into inocent citizens who immediately transform into pony versions of themselves and chanting "Cookie!" "Cookie!".

"Well, that sure wiggled my biscuits!" said Buford.

"RUN!"

The four felt the terror and screamed, roaring away from the scene as fast as they could. They ran to the nearest place to hide, leaning against a brick wall of a building as they were hearing other terrified citizens running away and "Cookie!" and groaning over and over again.

"What was that?!" asked Buford while still catching his breath.

"It's some kind of...cookie-craving...zombie pony!" said Phineas as he notices the rainbow muzzles in their mouths and uttering 'cookie' repeatedly. "And if it bites you, you turn into a cookie-craving zombie pony too!"

"I can't be a cookie-craving zombie pony! I don't know nothing about ponyfications!" cried Buford.

"Then we just gotta make sure that those things never bite us!" requested Baljeet.

But right after he said that, Zombie Pony Pinkie Pie snuck up behind Baljeet and placed it's teeth on his head, causing Baljeet to shriek and scream in panic, feeling his heart stop.

The other three (aside of Ferb) screamed and ran away from their friend, knowing that he was gonna transform at any moment. Baljeet ran away from the grip of the zombie pony to join his friends.

Buford was convinced that his nerd was sick and picked up Phineas to use him as a human shield. "Stay back! They made you sick! You're infected!"

"Buford, put me down." said Phineas annoyed after seeing his friend's intention.

"I-I am okay! Really!" cried Baljeet in shock and confused.

"And why are you okay?!" asked Buford confused as he puts Phineas on the floor again.

"I do not know!" cried Baljeet as he was still in shock of what happened, thinking that it was his end and wondered why he hasn't turn into a zombie pony version of himself.

Ferb later suggested something he remembers. "Perhaps our rubberized skin might be acting as an insulator."

Phineas gasped and remembered how the sickness and contagion was transmitted by. "Of course! The sickness and contagion must be transmitted by electrostatic charge!"

The four were taken by surprise as they see that a group of zombie ponies were surrounding them, one of them was Lyra Heartstrings, who was now a zombie pony too.

"Let's bounce guys!" cried Phineas as he and the others bounced away from the scene, but later Phineas bounced back to they were surrounded. "Literally!" he said as he bounced away again.

The four were bouncing the streets infested of zombie ponies, hurrying to get to a place to be safe.

They were communicating to themselves loudly since it was difficult to talk normal since they were bouncing.

"How long is the rubberization effect supposed to last?!" asked Baljeet.

"Not much longer!" answered Phineas.

"I want a recharge!" requested Buford.

"Good Idea! Let's get back to the backyard and re-rubberize!" said Phineas.

The four were bouncing around the city, carefully on avoiding the zombie ponies roaming around the streets. They quickly headed to the neighborhood where Phineas and Ferb's house was to get themselves re-rubberized, without knowing that here was something, or rather, someone behind.

Isabella was bouncing all over town, looking for the boys "Phineas?! Phineas?!" She cried.

She stopped bouncing and has no idea what was going on, but she thought that it might be bad.

"Phineas?! Where are you guys?!" she cried out.

She decided to hide into a dumpster in a alleyway, as she took a breath and tries to process and give conclution to the situation. "Okay, so these cookie-eating zombie pony things are turning other people into zombie pony versions of them."

Later she gasped in horror and got a terrifying thought that might be true. "Oh no, what if Phineas has turned into one?"

But to make things worst, she felt something on her shoulder and saw what it was, it was zombie pony standing above her.

"COOKIE!!!" groan the zombie pony.

"NOOOOOOOOO!!!!!" yelled Isabella as she pushed the zombie pony away and got out of the dumpster.

She ran away into the opposite direction, the alleyway had a dead end, Isabella has nowhere to run now, the zombie pony got closer to Isabella as Isabella was closing her eyes, knowing that it was her end.

But joyfully, with the rubberization effect, the zombie pony was biting her, but not even a piece of static was surrounding her, she remembered that as she pushed the zombie pony and bounced over the wall. "Wait, that's it! The rubberization effect! It's protecting me from the sickness and contagion! Well, at least that means that Phineas is safe."

Her fear has turned into relief, and suddenly into sadness, thinking that the boys left her behind, she could understand that maybe the panic got them, and that's why they left her behind, but it still hurts her.

"I can't believe they forgot me. He forgot me." Isabella was sheding a tear from one of her eyes, knowing that the one considering her crush left her, she can understand that Buford or Baljeet, or even Ferb could left her behind, but Phineas? He would never leave her in a dangerous situation. Would he?

But she overthought too much and conclude to herself that this was an exception as she swallowed a cry. "Phineas, how could you?"

She closed her eyes and knew that there was no time to cry, there was a situation that has to answer it's questions.

She looked at the water tower from where she was in repose and remembered the ceremony, the mayor was supposed to unveil it, by her relief, when she arrived to the place, the area was empty of any zombie pony left. Perhaps this was where it all went wrong, or at least something out of this universe made it went wrong. But how? And most importantly of all, why?

To be continued.

Author's Note

The scene where Isabella thinks that the boys left her behind is originally made by PixarPnLover, in his story, "Lots of Hell" on Wattpad and Fanfiction.

Here is the link to the original script.
https://www.wattpad.com/702223898-lots-of-hell-night-of-the-living-pharmacists

Act 9

Meanwhile, in Doofenshmirtz Evil Inc, in Vanessa's departament, Candace, Vanessa and the girls were watching some foreign films. They were in their second movie. "So this is a French film subtitled in Spanish. Why is that goat-headed lady furry lingerie?" asked Candace as she was already beyond intrigued.

"Art isn't useless, it's difficult." answered Birgitte.

"Mhm." said Candace interested.

Suddenly, they heard an unusual banging on the door. Lacie went to get more snacks, so she looked through the peephole on the door, seeing Zombie Pony Pinkie Pie standing there, moaning in a raspy voice.

"Uh, Vanessa, I think that one of your dad's invents is at the door." announced Lacie to Vanessa.

"Ugh, It's okay." groaned Vanessa as she walked over to Lacie. "Don't pause it."

Vanessa opened the door, seeing not one, but three of the zombie ponies, Pinkie, Twilight and Mrs. Cake standing there. "COOKIE!!!"

"Okay?" said Vanessa as she rolled her eyes, shut the door and looked at her friends. "Something's weird here, cuz I'm pretty sure we only have one of those living here. Lemme call him and see what's up."

Vanessa pulled her phone out and called her dad (AKA Doofenshmirtz) as the girls were watching and stood up from the couch. Vanessa waited for a moment, but her dad didn't answer, which was odd since he always response her, especially on bad times. "Hm, voicemail. Odd." she said as she decided to leave one anyway so that her dad can heard it. "Dad, your weird pony thingies are down here. Could you please just-"

But before she could continue, the zombie ponies punched their way through the door, causing Vanessa to yelp and flee away from the door.

"COOKIE!!!" groan the zombie ponies as they reached their way into the room.

The girls all screamed, aside of Candace, and immediately ran away. "Come on! Candace!" cried Vanessa as she was gesturing for the youngest teen girl to follow. "Come on! Come on!"

The girls hurried to Vanessa's bedroom, shutting the door behind them. While the girls terrified put their minds, Candace was on the other hand was not amused of what she was witnessing, since she got used to all kinds of dangers her brothers had made.

"Okay, that's really wrong." said Vanessa as she leaned against the door. "Even by my dad's standard invents."

"Check it out it's all over the web!" said Dana frightened as she already pulled her phone out, later she showed the phone to Heather. "Those things aren't just going on in this building, they're all over town! And according to this, if one bites you, you turn into one of them!"

"Ouch!" Felt the girls pain in their inners.

"We're doomed!" said Lacie.

"What's the deal? I see weird like this all the time. I'm used to it." scoffed Candace as she and Vanessa pushed the bookcase to block the door.

"I want my mommy!" cried Birgitte.

"My life's gonna end and I'm wearing a fake tattoo!" said Lacie.

"Someone's gonna help us! I mean, we're danger!" cried Heather.

Candace was shocked and unamused by the girls' reaction. She would have expected the 'cooler older' girls to be more chilled and calmed about a situation like this. "What a bunch of babies." she said as she murmured thought the corner of her mouth.

Later she gasped as a realization came onto her mind that probably might be true. "Wait a minute! Weird situation plus danger equals Phineas and Ferb! Okay calm down. I'm on it!"

Candace pulled out her phone and dialed to her mom's phone number, who immediately answered. "Mom? Mom! I want you to check it Phineas and Ferb are creating ponies that are acting like zombies!"

"Oh, I love when teenagers get together and do party pranks!" said Linda, the mother of Phineas, Ferb and Candace delightly as she was picking up a basket of tended clothes, unaware of her daughter being serious. "Do you win the game if I actually do what you say?"

"Of course, why would she ever believe me?" thought Candace as she rolled her eyes.

Meanwhile, in the house's living room, Buford was still screaming and running in panic in circles as Phineas, Ferb and Baljeet were chasing him to calm him down.

"This has taken considerably longer than I have ever imagined!" said Baljeet.

They got him at a halt and Phineas assure him in a tone that he could use at any moment. "Buford! Chill out! You're fine!"

"Fine?! What do you mean by fine?! I got no bounce left! I'm totally unprotected!" cried Buford.

"We'll build another rubberization ray!" cried Phineas. "You're worrying for nothing!"

"Yes. It is not like society has crumbed, Buford. On the bright side, the phone networks are still up." said Baljeet as Ferb pulls his phone to prove it.

"We still have electric power." said Phineas gesturing to the lights.

"And water is still flowing out of the tap." said Baljeet as was gesturing to the kitchen sink faucet.

Correction! Water has disflowed from the tap as Baljeet jinxed the situation. The phone lost signal as Ferb's phone turned off. And finally, the power was cut off, causing Phineas to jinx about it. And not just in the house, but slowly and slowly, building by building, until Danville was a midnighted and blackened city.

Buford's scream could be heard throughout the entire town after that.

Meanwhile, in Doofenshmirtz Evil Inc, Candace was still asking though her phone. "Mom? Mom! Are you there?!"

Later she looked through her phone and realized she lost signal. "Something's weird is going on! Not the usual weird! A different not normal weird!"

"This is not my dad's usual weird either!" sighed Vanessa as she leaned against the bookcase blocking the door.

The girls screeched and screamed together.

"Something tells me that I've should've just hang out at Stacy's." said Candace as she bit her lip glancing aside.

Meanwhile, in Stacy's house, Stacy was unaware of the danger outside her window behind her and still focused on her movie instead.

"Look out! She's right behind you!" she cried before the power was cut off, causing Stacy to groan and stood up to repair the damage. "Great! You've gotta be kiddin' me! Talk about Grievance interruptus!"

Meanwhile, while the blackout had gone on. Applejack, Rarity and the CMC'S were roaming all over the streets of the city, looking for some clues about what ruined the zombie prank.

Rarity was using her horn as a flashlight, but later it went off since the ponies were in human territory, where magic doesn't exist, meaning that it can't be used for too long. "Oh, dear! My magic is gone and I can't no longer use it." she said

Sweetie Belle attempted to use her magic, but despite that she's a filly, it resulted useless in a situation like this. "Dang it, I can't use my magic either." she cried.

"Don't worry girls, take a break from that." said Applejack. "But Ah ain't givin' up on that, there must be a clue to somewhere of what could cause the prank go wrong 'round here."

Later, Apple Bloom saw a foot mark in the middle of the street. "Uh, guys, look at this." she said as the rest got closer to see it, but later they saw that there wasn't one, but much of them, leading as a path to somewhere else.

"Our first clue!" exclaimed Applejack, "This must lead us to where we're lookin' for."

"Wait!" said Scootaloo. "Is it a good idea to follow the path, I mean, there could be something wrong waiting for us of we follow it."

"Ah never said that it's a good idea to follow it." answered Applejack. "But there's only one way to find out. This must lead us to our second clue. C'mon!"

And so the did, they followed the foot mark path, through the streets, into an alleyway, and finally, the path ends in the middle of a street.

"The path ends here? That's just great!" Exclaimed Rarity as looked on the floor asidewards. "Now how are we going to continue if the path ends here!?"

But then Scootaloo saw something and pointed to certain thing she saw. "Uh, guys, I think you would look at that if I were you."

The others we're confused, until they saw at what Scootaloo was watching and got shocked about certain thing.

The saw a view of Doofenshmirtz Evil Inc, far away from they were in repose. "Sweet celestia, what a weird building, how are we going to get there?" asked Sweetie Belle.

"Ah suggest to keep an eye on that building to follow it from it's further view and get there." requested Applejack.

"Wait!" said Rarity conscious from what trap could be there. "What if somepony inside that building know our presence and have traps inside or outside the building?"

"There's only one way to find out!" answered Applejack. "C'mon!"

The mares and fillies were galloping to their destination, they knew that they won't be able to know everything until they find out about the situation.

To be continued.

Act 10

Meanwhile, back at the neighborhood, Stacy wasn't the only one oblivious. Linda and her husband Lawrence, were steping out of the house to the front ward, thinking that it was just a normal blackout. "Oh I just love blackouts. They're kind of exciting in a way." said Linda as she hold Lawrence's hand, seeing the stars.

"Yeah, oh yes." said Lawrence delightly. "And it's one of the few times you get to meet your neighbors, like this lady here."

He saw zombie pony Granny Smith beginning to approach them and held his has to introduce himself. "Pleased to meet you, ma'am. I'm Lawrence, and this is my-"

But before he could continue, the zombie pony bit Lawrence's hand, causing static to surround not just Lawrence, but also Linda since she was holding her husband's hand, and soon they transformed into zombie ponies.

"COOKIE!!! COOKIE!!!" groan the zombie ponies as the left.

Phineas gasped at the situation from the house's window, witnessing the true horror. "Oh no, they've got Mom and Dad!" he cried as he closed the windows' curtains and gestured to the broken machine. "And without power, there's no way I can repair these circuits!"

"Game over, man! We're doomed!" cried Buford.

"No! There is always a way!" said Baljeet as he walked over to Buford determinedly. "Isabella teaches the emergency preparedness class with the Fireside Girls. She could build a generator in her sleep. Is that not right, Isabella?"

But Isabella didn't answer.

"Isabella? I... thought she was-" said Phineas anxiously, glancing around the room. "Didn't anyone- Who saw here last?"

Much for the boys' surprise of Isabella not with them anymore, Phineas began to run in circles, screaming and panicking, doing the same thing Buford did a moment ago. "DAHHHHH!!!! AHHHHH!!!!"

Buford was unamused of what Phineas was doing, seeing that the boy who told him to chill out for the situation was now the freaked boy. "Buford, chill out! You're fine! I'm vindicated."

Meanwhile, in the downtown Danville, everyone was witnessing the blackout and screamed in panic of the zombie ponies in the streets. "AHHH! There's no computers!" shout a random woman while running.

"How we're be able to know what is is going on?" said a random tourist while running.

"I've got to see the newspaper! I have to know what is going on!" cried a random man with sunglasses.

"Yeah! The paper is back baby!" cried Martin the newspaper vendor delightly.

"Wait, this is stuff that happened yesterday. AHH!! AHH!!" cried the man as he screamed and ran away.

Unbelknowlest to Martin the newspaper vendor, a zombie pony with the newspaper on it's head was approaching to Martin the newspaper vendor and bit him immediately as static was surrounding him and soon transformed him into a zombie pony. "COOKIE, BABY!" groan the zombie pony.

Meanwhile, at Doofenshmirtz Evil Inc, in Doofenshmirtz's lab, Agent P tried to push and shove the box, struggling to get out of his trap. It seems like there was no way to get out of his trap. But later he spotted a giant mechanical hand above his trap and a remote control a few feet from his box. So he stretched his arm into one of the box's holes reaching as he could until he was able to grab the remote.

He pushed one of the buttons that quickly activated the hand, which lifted the box and anvil off of his box. Agent P fled from his trap and ran to the balcony, but then he realized that he was now free in a lab full of zombie ponies.

Some zombie ponies pounded the lab's door and it was zombie ponies Twilight, Pinkie, Mrs. Cake, Big Mac and Fluttershy who pushed the door and fall to the ground, they stood up as Agent P looked at them, knowing that he was surrounded by them.

"ME WANT COOKIE!!!" groan zombie pony Pinkie as it and the other zombie ponies got closer to him.

Agent P tried to find a way to escape, but it seems like there isn't one, until he backed into a pile of boxes of toilet plungers and a box fell into him, by then giving him the idea to use them. He pushed the box out of him, having two of the plungers, and swinged through the zombie ponies with them, later, he threw one at zombie pony Fluttershy to throw the zombie pony and plunger at a wave of zombie ponies. But only to see that the plunger was now stick in the zombie pony's face.

He used the other plunger and ran through the lair, he pushed any of the zombie ponies out of his way with it.

He finally made it across the room and went inside the door of what seemed to be like an empty closet space.

"COOKIE!!! COOKIE!!!" groan the zombie ponies as they were surrounding the door.

He shut the door with a table and set the plunger down, now feeling safer. Of course, he would need to escape still and find out how to stop the sickness. But he needed a moment to think of a plan for a strategy first.

But as Agent P backed up, he was starlet when he felt two hoof touches on both of his arms, he looked around to see who, or what is was.

"COOKIE!!!"

Agent P gasped and got shocked of what he saw and knew what was going to happen to him.

To be continued.

Act 11

Agent P was shocked while looking at what he was seeing, it was zombie ponies Rainbow Dash and Derpy Hooves holding both of his arms, Agent P stared at them in horror, waiting for one of the zombie ponies to bite him and turn into one of them.

"COOKIE!!!" groan the zombie ponies.

But then they started to laugh like normal ponies, it turned out that Rainbow Dash and Derpy were only playing a prank on Agent P. "You really thought that we were one of them, didn't you, huh?" asked Rainbow Dash.

"Gotcha!" cried Rainbow Dash and Derpy as they pointed to him and continued laughing.

Agent P was upset and annoyed after seeing that the danger he was in was just a prank, he thought that it was his end and could no longer save Danville.

Starlight and Trixie appeared from the darkness of the room and started to giggle a little despite that even though they weren't in this prank, it was quite funny for them to see someone else get pranked.

"You know, it was pretty funny to see." chuckled Starlight.

"Indeed it was Starlight." agreed Trixie.

"Ah, no worries, he falls for everything, he's too easy to trick." said Doofenshmirtz as he appeared from a part of the room, seeing his nemesis that got pranked.

"Really, Dr. Doof?" asked Trixie while chuckling.

"Oh, yes." answered Doofenshmirtz. "Once he falled for the inator's explotion and got trapped. Although it really happened after he falled for it. But he falled for it. Hahaha!"

"Hehe. Pretty Odd, but t's something I can afford." said Starlight.

Doofenshmirtz went to where Agent P, who was still unamused for what Rainbow Dash and Derpy did to him, as the two pegassi retire themselves laughing.

"Ah, Perry the Platypus. You really fall for it." said Doofenshmirtz. "But those guys out there are desperating, aren't they?"

"Anyway, welcome to my Startle Space." he continued as he gestured proudly to the room, something that he would get used to. "I wanted a panic room, but they're prohibitively expensive. I just had to get a place to clear my head, man. My own minions, they're really workin' my last nerve. 'Cookie! Cookie! Cookie!' One of them is fine, but, agh, my invents can be annoying en masse. I admit it."

Doofenshmirtz thought to himself that the idea of the zombie ponies he created seemed like a good idea for his Tri-State Area conquest, but then he learned that they're all pretty useless when it comes to following orders. They really we're all just mindless repulsive cookie-craving zombie ponies spreading a sickness across Danville, nothing more and less. And honestly, Agent P and the mares couldn't argue with that.

"So, uh, are you hungry? I got plenty of food!" offered Doofenshmirtz gestering to a shelves of cans.

Agent P grabbed a can of almond brittle from one of the shelves.

"Or maybe, You wanna see one of the greatest stories of Darling Do!?" asked Rainbow Dash as she shows a book from a couple of Darling Do books she has to Agent P.

"Or do you a muffin?" offered Derpy as she got from knowhere a muffin.

"Or maybe you wanna see a magic trick?" asked Trixie as she shows her hat to him.

"Oh, or maybe you want to read one of Twilight's books I've got?" asked Starlight with a pille of books.

"Or maybe you wanna play a game?" asked Doofenshmirtz as he gestered to a pille of old board games on top of a old TV and fridge. "I got some old Drusselstein board games here, like, ooh, 'Kleptoceacy'! Vanessa used to love this game when she was a-"

Doofenshmirtz gasped and dropped the board game after mentioning his daughter's name, and completly forgot about her and her movie night. And it was super posible that she's already ponified. "Vanessa! Oh no! She's still in the building! We need to stop those other minions before they get to her or she could turn into one of them! That's every kid's worst nightmare!"

Doofenshmirtz later realized that he sounded silly for saying that and Agent P and the mares just looked at him a bit bothered.

"Well, not- not them specifically." said Doofenshmirtz. "Other children are not scared of turning into one of them. It's just that I'm saying turning into your dreams and nightmares. That's what's scary."

"Vanessa!" gasped Doofenshmirtz as he ran into the door. But Rainbow Dash went to block the door so he couldn't get out. "Dr. Doof. Wait!"

"Outta my way!" cried Doofenshmirtz angrily and anxious. "I've gotta find my daughter, Vanessa! She's probably in danger!"

"I know how you feel Dr. Doof," conforted Rainbow Dash. "but if they see that Derpy and I are wearing these costumes, then there will be no hopes of saving Ponyville and Danville if they discover us."

"Okay, young lady, what do you suggest? "asked Doofenshmirtz unamused.

"I suggest that Derpy and I will go out there first, and Starlight and Trixie can reduce their sizes with their magic." said Rainbow Dash.

Starlight and Trixie thinked about it for 3 seconds and they thought that it wasn't a bad idea, they mean, they did it once they got to Doofenshmirtz Evil Inc., so why not doing it again?

"Alright, will do it." determed Starlight. "Are you ready, Trixie?"

"Of course Trixie's ready." said Trixie.

Starlight and Trixie used their magic to reduce their sizes and Rainbow Dash and Derpy put them in their manes.

Doofenshmirtz later remembers that he got some old walky-talkys in his pockets, so he pulled them out si the mares can use one.

"Here, have this walky-talky, you can use it to tell me when you're on the other side of the lair." explain Doofenshmirtz. "You just simply push this button to active it and tell me when you're there. Got it?"

"Got it, we'll tell you when we get there." said Rainbow Dash.

The two pegasi got out of the Startle Space and ready to act like zombie ponies to get on the other side. "Are you ready Derpy?" asked Rainbow Dash.

"I'm ready, Dash!" cried Derpy in determination.

"All right, here we go!" cried Rainbow Dash.

They shunk their eyes, started to utter 'cookie' over and over again and walked over to the lab's door. Fortunately, the zombie ponies in the lab didn't suspect anything.

Once they reached the other side, they got out of the lair and Rainbow Dash got the walky-talky out of her mane and started comunicating to Doofenshmirtz. "Okay, Dr. Doof, we're already on the other side." she said. "You can now go search for your daughter, I'm out."

She desactives the walky-talky, puts it inside of nowhere and she and Derpy went to another part of the building, still acting like zombie ponies.

"Thank you, I'm out." said Doofenshmirtz as he puts the walky-talky back tonyis pocket and later gasped. "Vanessa! VANESSA!!!"

Doofenshmirtz went out of the Startle Space and ran into the hallway. Agent P would've followed him, but he couldn't risk running out blindly into what was practically a minefield. He slowly crept around the wall, fortunately going unnoticed by the zombie ponies around the lab.

Meanwhile, in the Flynn-Fletcher house, the boys were using various flashlights and lanterns so that they could see, and also, put some wooden boards on the windows so the zombie ponies couldn't enter from their windows.

"I can't believe we left her!" said Phineas as he was walking all over the living room. "I hope she's okay. She's just gotta be! I'm gonna check the periscope again. Maybe she's back by now."

"I will do it." said Baljeet as he stood up.

"Thanks Baljeet." said Phineas greatfuly.

Baljeet walked over to the periscope to see if Isabella has returned into the neighborhood, but there was no signs of her around, only zombie ponies roaming the neighborhood's streets. "Nothing but zombie ponies as far as the periscope can see." He warned.

Phineas sighed defeatedly as he stood up, wondering how was it possible to leave Isabella behind in a situation like this, he felt fault for doing that, and thought that he needed to be more aware of her in the first place, he never wanted to leave her, it's just that the panic got him and that's why he was anaware of her.

"I hope she's okay. ugh." He said as he stared at the floor. "If she's been turned into a zombie pony, I'll never forgive myself."

"Don't worry Phineas, with her training, she will be fine." said Baljeet. "Just last week, she earned her Judo, Hapkido and Jujitsu patches."

Phineas' worry only grew, since that those techniques are involved on physically touching the zombie ponies, thinking that it's another way to get ponified despite the static surrounding them. "Judo? Hapkido? But those are all grappling techniques! And she touches one of them, then...aww."

Later, Phineas thought that there was only one place for Isabella to have santuary there. "Wait! I bet she's at Fireside Girl Headquaters. We've gotta go there!"

"But that is all the way across town!" objected Baljeet.

"We can't go out there unprotected! We're sittin' ducks!" agreed Buford.

"Look guys, I'm not saying that this is a good idea despite the danger out there," said Phineas as he crossed his arms. "but I can't risk it! Isabella could be in danger. And if I have to go about there exposed, then I'll do it. And I'll do it alone.

Buford and Baljeet looked and each other and were scared for their lives in game, but they also knew that Phineas has a point, they would never leave a friend behind, especially when it's a dangerous situation like this.

"Okay, so what should we do now?" asked Baljeet.

Phineas smiled of gratefulness and thinked about something. "Well, since the rubberization machine is toast, we're gonna need some insulating armor. Hey Ferb, do we have any rubber laying around?"

Ferb looks to a pile of rubber items aside of him and gestered to it as he looks at Phineas again.

"Two steps ahead as always." said Phineas. "Ferb, I know what are we gonna do tonight!"

Meanwhile, in Stacy's house, Stacy was scoffing in annoyance with a pair of rubber gloves and a manual, also, unaware of the zombie ponies roaming around the neighborhood. "Figures, the power goes out in the middle of the movie. Good thing I got power generator package option. Okay, let's see:" she said as she puts on some noise-cancelling headphones. "'For your safety, please make sure to wear included protective gear when operating generator.'"

Stacy puts some rubber gloves and ducks to the generator grabbing the cord. Unbelknowlest to her, one of the zombie ponies hopped over the fence just right behind her.

"Right, here we go." cried Stacy as she later pulled the cord on the generator, and unknowingly punch the zombie pony out could in it's face. Though, she did feel something, but later she thought that it was the fence she punched, so she ignored that and she saw the generator working the first time and smiled. "Nice! Hooked up a video system and a generator! haha, I am good!"

She walked back into the house congratulating herself, still unaware of the chaos.

Meanwhile, in a part of Danville, Shaun from 'Shaun of the Dead' was running away from the grip of the zombie ponies, carefully on not touching them by accident. "Don't bite me, I don't wanna be a cookie-craving zombie po-"

Later he stop, and remembers the transformations and the rainbow muzzles in their mouths. "Wait a second, that doesn't even make sense. You get bitten by a cookie-craving zombie pony, you become a cookie-craving zombie pony? I mean, you can't just grow rainbow smears in your mouth."

"I don't know, perhaps the rainbow sickness infects your clothing as well, Shaun." said Ed as he appeared from nowhere, running from the zombie ponies.

"Infects my-?" said Shaun annoyed after hearing that, refusing to believe in that. "Are you insinuating that my clothing is alive? That's more scarier that these cookie-craving zombie ponies saying-"

But as he gestered to the zombie ponies, a zombie pony got closer to Shaun as it bite his arm gestering, causing static to surround Shaun and transformed him into a zombie pony.

"cooKIE!!!" groan the transformed zombie pony.

"No, I suppose I didn't really think that through-"

But soon the zombie pony transformed bit Ed's right arm as static surrounded Ed and soon transformed him into a zombie pony too.

"cooKIE!!!" groan the zombie pony.

To be continued.

Act 12

Meanwhile, in Doofenshmirtz Evil Inc., Agent P was running away and carefully avoiding the zombie ponies that were now chasing him. Agent P took off his fedora hat to pull out a one-button remote. After pressing the remote's button, he jump off from the balcony.

Right before he could fall, his delta wing appeared under him to grab it. He looked back at the zombie ponies dangling from the balcony, railing after trying to infect him. He sighed in relief, but then his wristwatch communicator was beeping, he answered by looking at the screen of the communicator and saw static for a few seconds, but then he saw that the one communicating him was Major Monogram, who's signal was going off since there was no signal all over the city.

"Agent P! *static* Agent P! Do not come to- *static* -headquaters. *static* It is a 'life or pony' situation! *static* O.W.C.A has fallen, I repeat, O.W.C.A has- *crash!* *static*"

Major Monogram was able to get a better signal and stared at Agent P ugently for his new mission as it hears moaning 'cookie!' 'cookie!' in the transmission "Agent P, we need you to find the source of the sickness and contagion and protect those who haven't been zom-ponified. You're our last hope!"

"You're the omega latypus. But no pressure!" said Carl as he appeared on the view.

But just then, a zombie pony appeared into the view, about to bit Mayor Monogram and Carl in front of Agent P. "MORE COOKIE!!!"

Just static shows again, by then showing Major Monogram being surrounded by static. "Good luck, Agent P! Good l- lu-"

And just like that, the static soon transformed Major Monogram into a zombie pony. "COOKIE!!! COOKIE!!!"

"COOKIE!!! I used to be Carl." groan the other transformed zombie pony.

Agent P turned off his wristwatch, now realizing that his new mission was so serious. It was now up to him to protect the unzom-ponified ones in Danville and prevent the sickness from spreading the city. It was all up to him to save Danville.

Meanwhile, the boys had practically engulfed themselves with the most rubber they could find, using it all as an armor to protect themselves from the sickness. They were able to sneak around the playground that is invaded by the zombie ponies, and were now 'safely' on the sidewalk, by later leaning behind a truck from a wave of zombie ponies that were walking all over the streets of the city. Phineas hopes to get closer to the Fireside Girls, also hopefully, Isabella.

"Okay guys. Fireside Girl Headquaters is only a couple of blocks away." warned Phineas.

Just by then, the boys were taken by surprise when a group of zombie ponies appear right after the truck's back door opened up. "COOKIE!!"

"Woah! Look alive, guys!" warned Phineas as he and the others rushed away from them.

They began to crawl behind a cement wall, avoiding being seen. Then they stop in the middle and Phineas gave a 'okay', pointing to a hill by later, rolling down to it and running into what look like a dark and abandoned street corner with only one light working. They stopped as they saw a four-legged shadow in the distance, the shadow was different, so Buford kneed himself. "Aw, look, it's a dog! Come here, boy!" he said as he whistled to it.

But he was mistaken by the 'dog', it walked out of the darkness and revealed itself as a goat. And not just any ordinary goat, a goat with rainbow muzzle in it's mouth, it's fur wrinkled, it's colors dulled, its eyes separated in directions and bahed 'cookie!' (And a fedora hat that they choose not to question).

Buford screeched and backed off of shock from it. The boys later they heard an owl hoot, but the owl was in the same features of the zombie ponies.

"What the..." said Phineas in surprise.

More mouth-rainbowfied animals revealed themselves from the darkness, much of them were Fluttershy's animals that were also mouth-rainbowfied, including Angel Bunny and Harry the Bear, they were all growling at the boys as they were getting closer to them, wait for the moment to swing at the boys, causing them to back off from themselves.

"Oh no! The sickness and contagion must have a different effect on animals!" cried Phineas in shocked.

The animals swing againest the boys of trying to zom-ponify them, cookie zombie Angel Bunny attempted to bite Ferb, but couldn't since the rubber armor he was wearing was protecting him. Baljeet had to defend himself from a monkey and a few of Fluttershy's oppsoms with a trash can. Buford was being chased by a pig, a chicken and Harry the Bear. Both Buford and Baljeet, who was in the trash can that was being rolled by the monkey went into an unlocked store and they quickly came out inside a wheeling mop bucket, Buford used the mop to throw the cookie zombie animals out of their way, allowing Phineas and Ferb to hop on and get away from them.

"They're following us!" warned Phineas as he saw that the cookie zombie animals chasing them, much faster and angrier now.

"Hold on, I'll try and lose 'em! Feet up, Ferb!" said Buford as Ferb lifted his legs, making the wheeling mop bucket go into an alleyway.

Agent P delta winged in the air and saw the boys being pursued by Fluttershy's mouth-rainbowfied animals and the mouth-rainbowfied animal agents, and hopes that the fedora hats they wear were just gone unnoticed.

Agent P flew downwards into the alleyway, getting caught by a bunch of hanging clotheslines. As soon he landed on the ground, he letted go of the clotheslines to fling the cookie zombie animals and make them fly backwards.

"Looks like we lost 'em!" said Phineas.

"Yes, and no!" said Buford.

The boys were wheeling though a swarm of zombie ponies as they scream, thankfully, the zombie ponies were much slower to keep up them up, so they boys were able to make it out alive.

Once they boys got out, they took the nearest alleyway shortcut to Fireside Girl Headquaters. But on the other side, Applejack, Rarity and the CMC'S were following Doofenshmirtz Evil Inc to get there and find out about the zombie prank ruined.

"Are we there yet to the building, Applejack?" asked Apple Bloom.

"Not yet, Apple Bloom." answered Applejack. "We need to go a few inches from here to there."

But before they could continue on, the boys went much quicker as they saw the mares and filies on the way, they scream as they crash to the mare and fillies that were in the way.

They got up and saw the saw the mares and fillies on the floor, the boys screamed a little, thinking that they were zombie ponies.

"Hey, watch where ya' goin'!" cried Applejack angrily, causing the boys confused.

They later saw that there weren't wearing rainbow muzzles in their mouths, their colors were normal, they're mane we're alright, and they just talked normally.

"Did you just talk...normally?" asked Phineas confused.

"Of course we talked!" cried Applejack angrily and blindly. "What did you-"

But before she could continue, she saw the boys standing there confused, which cause the mares and fillies confused as well.

"We had no intention to harm you guys, we're sorry that we crash on you guys." apologized Phineas.

"That's okay sugarcube, we're also in a important thing too." said Applejack.

"Yeah, I know it was just an accident." continued and ended Rarity.

"By the way, who are you guys?" asked Applejack.
"And why are you around here? Aren't you supposted to be safe at home?"

"My name's Phineas, and he is my brother, Ferb. And these are our friends, Buford and Baljeet." introduced Phineas himself as Ferb waved at them.

"Hi." greated Buford.

"Hello." greated Baljeet.

"We're looking for our nearest friend, Isabella." explained Phineas. "And we left her by accident here in the city and we're looking for her. We may think that she's at Fireside Girl Headquaters."

"And who are you guys?" he asked. "I can see you are not from our universe."

"Name's Applejack, and she's mah friend Rarity, and these are our sisters. The Cutie Mark Crusaders." Introduced Applejack.

"Hello, darlings." greated Rarity as she waved.

"Hi!" said the CMC'S as they waved too.

"We're here in your universe because we wanna go to that building over there." said Applejack as she pointed to a view of Doofenshmirtz Evil Inc.

"Odd, and why do you wanna go there? Was there something wrong in your world from ours?" asked Phineas.

The mares and fillies got shocked of after Phineas question that. The looked each other and knew that the boys deserved the truth despite the danger they had to went though.

"Well, let's just say that all of this you're seeing, we have somethin' to do with." said Applejack as the boys gasped.

"WHAT!! But, why?!" asked Phineas angrily.

"Let's us explain." answered Rarity as a flashback appears. "Some ponies are from our pony town called, Ponyville, we were all victims of various pranks that are pulled by our rainbow maned pegasus called, Rainbow Dash."

"And when our party mare friend, Pinkie Pie knew about the way to prank everypony on Ponyville, she came up with a plan to tell everypony, includin' us, to pull a fake apocalyse zombie prank to flip the tables on Rainbow Dash." continued Applejack as the flashback shows ponies and the mane 5 practicing for the zombie prank.

"But a soon Rainbow Dash was gone and was no long to be seen, and saw everypony goin' into a portal that lead us here, we knew that somethin' was wrong and it wasn't part of the prank, so went inside and saw the chaos that is goin' on." continued Apple Bloom as the flashback shows the apocalyse zombie pony in Danville getting started.

"So we decided to investigate on what could be the cause and who pony was responsible for ruining the prank and becoming it into something real." said Scootaloo as the flashback shows the mares and fillies investigating on going all over the city for clues.

"And the longer we go, we first thought that the idea of a fake zombie prank on Rainbow Dash seemed like a good idea to make her stop for a while, but then we realized that it wasn't a best way of making her stop. I don't wanna imagine how Rainbow Dash would feel after such prank we made on her." continued Sweetie Belle as she started to get worried as the flashback ends.

"Yeah, we could even make her not coming back to Ponyville, or even making her cry!" said Scootaloo, feeling more worried and ashamed for doing that to her own sister.

"Eeyup!" agreed Applejack. "And that's why we wanna say to Rainbow Dash and you guys, we're very sorry, our upsetness didn't let us think of the consequences that's gonna happen to us if this prank happened."

"Well you guys better be sorry!" yelled Phineas angrily as he got closer to the mares and filies. "Because look at the chaos we have to get though! That prank you were gonna pull on your friend was gonna give her a chance of death. Tell me, how would you guys feel if your friends pull a prank like that on you? You wouldn't like it, right? I know you did it for a good reason, but that reason will end up bad despite how upset you guys are, you wanna do the same thing to your friend. You know what's it called? It's called: Revenge, and trust me, that's no good. You guys would have thinked of a better, smarter and smaller way to make her stop instead of this chaos! And that way, none of this would have happen if you guys would have used the brains to think about it, before doing it!"

The mares and fillies were shocked at the way Phineas spoke to them, they were upset about it, but they also know that Phineas has a point. They looked at each other and agreed that they thought that it was the only decent idea of making Rainbow Dash stop pranking, but then they realized that it wasn't a good way to teach Rainbow Dash a lesson about pranking, because it wasn't teaching a lesson, it was making matters worse.

"You're right." said Applejack sadly as she took off her hat. "Our upsetness would have being us consequences if this prank happened, and we could even make Rainbow Dash hate us for that.'

"Yeah, indeed, we never thought of that from the beginning of it." said Rarity as the CMC'S nod their heads.

"And let me guess. You're the reason why they turn everyone into your pony species with everythin' from your prank?" asked Buford curiously.

"Eenope, we have nothin' to do with that." answered Applejack.

"Ah, ducks!" argued Buford disappointedly.

"So that's why we were investigating. We wanna know who pony and what thing made the prank go wrong." said Rarity.

"But you guys can not go by yourselves, you can join us if you want, because you know what they say, more of us are, much better the situation." said Baljeet. "What do you say? We could need someone who is responsible of a prank for this situation."

The mares and fillies thought of it for 5 seconds, and they decided to join the boys, they could be much better with teamwork, especially when it came to find the responsible of said situation.

"We'll join you guys, what now?" asked Applejack.

"Well, we're going to Fireside Girl Headquarters to see if our friend Isabella is there first, we could also use the help of the Fireside Girls as well." said Phineas. "Come on!"

And so, the group ran to Fireside Girl Headquarters to see if Isabella is there, later, they could form a strategy of how to stop the sickness and contagion.

Meanwhile, at Doofenshmirtz Evil Inc., Doofenshmirtz was all over the building looking for her daughter Vanessa calling out her name.

"Vanessa! VANESSA!" cried Doofenshmirtz.

But there was no signs of Vanessa around the building, the only thing he could hear is 'cookie' over and over again anywhere of the building he went. Later, he headed to the lair infested of zombie ponies.

"Alright alright! The party's over! I've had it up to here with you...minions!" he cried angrily. "Y'know, I'm really tired of hearing the same groans and the same word over and over again. Hmm, now I understand where Charlene was coming from!"

The zombie ponies after hearing what Doofenshmirtz said, they started to crowd around him, making Doofenshmirtz overly anxious. He yelled attempting to resist. But the zombie ponies all grabbed Doofenshmirtz at once and lifted him off his feet.

Although they were slow, they carried Doofenshmirtz all the way downstairs and eventually, made it to the exit of the building.

"LESS COOKIE!!! LESS COOKIE!!!" groan the zombie ponies as they angrily throwed Doofenshmirtz out of his home.

"Oh, typical. Typical. Yeah, turn on to your creator and leader!" said Doofenshmirtz annoyed after seeing what his 'minions' did to him. "You guys are all cliche, I'm just letting you know!"

To be continued.

Act 13

Meanwhile, inside of Doofenshmirtz Evil Inc, Candace was blocking the bedroom's door with a sofa so the zombie ponies couldn't enter, feeling much safer now, but they couldn't stay in the bedroom forever.

"That should hold 'em!" said Candace.

"Okay girls, we gotta figure out a plan." said Vanessa.

"We should totally split up!" said Birgitte.

"I'm gonna hide in the bathroom where it's safe." said Lacie as she went into the bathroom.

"I know. I'll run off to check an onscure notice in the kitchen." said Dana.

"I'm gonna slowly wall backwards into a dimly lit room." said Heather.

Candace was dumfounded after hearing the most ironic things that what she concidered 'cooler older' girls would say when it comes to a dangerous situation. Although they seem pretty serious about it. "Really? See, it you watch more domestic horror films, you'd know-"

But before she could continue, a groaning from Lacie came from the bathroom, causing Vanessa and Candace walking to the bathroom door, since they knew that she was there.

"Uh, Lacie, are you okay in there?" asked Vanessa suspicious.

"Oh, yeah." said Lacie as she popped her head out the door.

"Feeling safer in there?" asked Vanessa.

"A-lot-co-cook..." groan Lacie.

"Odd, but cool." said Vanessa calmly.

But Candace wasn't convinced about the girl's answer, despite that she heard that last thing about 'cook', she narrowed her eyes about it.

"Wait a minute!" said Candace as she opened the door completely.

But when she did, she gasped in horror as she saw zombie ponies Pinkie Pie, Twilight and Mrs. Cake standing behind an unphased Lacie with her eyes separate in directions.

"COOKIE!" groan the zombie ponies.

"cookie..." said lowly Lacie, but then, static surrounding her as transformed her into a zombie pony. "CooKIE!"

"Run!" cried Candace and Vanessa as they made aside the sofa and bookcase from the door and rushed away from the bedroom as quickly as they could.

"Oh, I knew we shouldn't split up." said Dana as she and the other girls just stood there.

But later, the zombie pony transformed bit the three girls as static was surrounding them and soon transformed them into zombie ponies.

"COOKIE!!!" groan the transformed zombie ponies.

The zombie ponies transformed went out of the bedroom as a zombie pony stuck on the apartament's door went passing the bedroom and the other three zombie ponies transformed followed it.

Meanwhile, at Fireside Girl Headquaters, the place was surrounded by a wave of zombie ponies, and it shows the Inexplicable Giant Floating Baby Head turned into a zombie pony, and it has the same appearence as the Baby Cake Twins.

Suddenly, a zombie pony-like figure shows approaching to the Fireside Girl Headquaters. But when it opened the door, it was actually Gretchen standing on Ginger's shoulders and behind them, was Adyson, wearing a pony motley with rainbow colored in the mouth.

"Katie, bar the door!" ordered Gretchen.

And so happen, Katie closed the door with a wooden bar and went to help remove the parts of the motley.

"Is she back yet?" asked Gretchen.

"No signs of her. We searched everywhere!" answered Holly.

"Where she could be?" asked Milly.

"She's probably still with Phineas and Ferb. She'll make it." answered Gretchen as she got off of Ginger's shoulders and puts her hat back on.

Suddenly, the Fireside Girls fliched after they heard a collection of tin cans ringing out, which it was used as an alarm alert.

"Perimeter alert! We have an incoming!" annouced Adyson.

"Stations everyone! Put out that light!" ordered Gretchen as Ginger turns off the lateen that they use as a source light.

"Katie?" asked Gretchen

"Yup." said Katie as she went to the door to ask the visitor. "Friend or cookie-eating zombie pony?"

"It's us! Let us in!" shout a familiar voice.

Katie sighed in relief and opened the door as the boys, mares and fillies went inside, meaning to the girls that Isabella also came with them.

"It's Phineas and Ferb!" cried Adyson joyfully.

"And Baljeet!" said Ginger as the others looked at her confused.

"And two horses and three little horses!" cried Milly.

"That's ponies to you guys." corrected Applejack.

"And they can talk!" cried Holly.

The Fireside Girls went to hug the mares and filies on joyness, causing the mares and fillies annoyed, but they perfered that than confesing that they were partly responsibles to the sickness.

"Why does no one care about Buford?" asked Buford disappointed as he looks at the floor.

"Isabella? Are you here?" asked Phineas as he glances at the room.

Gretchen gasped in horror after hearing what Phineas said. "I thought she was with you!" she cried.

"Isabella's still out there?" asked Adyson worried.

"I told ya man!" said Buford as he leaned againest the wall. "She's probably down the pony side effect and wearin' a rainbow on her mouth by now!"

"It can't be!" cried Phineas, refusing that his friend is ponified.

The mares and fillies on the other hand were shocked about their mistake, knowing that chaos is still going to. Applejack was going to confess about that they were partly responsibles for the sickness from still spreading. But Rarity put her hoof on her friend and shook her head, meaning to her that it wasn't worthless since she fears the same reaction of the boys to the others, not Gor now.

"I'm afraid that Buford is right Phineas." said Baljeet as he looked over the boarded window, seeing zombie pony Fluttershy chattering it's teeth. "The odds of anyone surviving out there for this long-"

"If anyone can do it, Isabella can!" interrupeted Phineas as he still refuses on believing that his friend is ponified, she proved to Phineas that she's brave enough to defend herself.

"It doesn't matter anyways!" cried Buford as he started panicking. "Sooner or later, they're gonna figure out we're here and then they're gonna come in here! They're gonna come in here and they're gonna come in here and they're gonna come in here and they're gonna-"

But suddenly, Gretchen got closer to him and slap him across the face. "Lock it down, solider! No one's gonna get in here!" she shouted as she pulls him by his mask. "Do you hear me?!"

Later she letting go of Buford and walked away angrily and annoyed.

"I am so in love with her right now!" he said dumbfounded.

"What are we gonna do, Applejack?" asked Apple Bloom worried.

"Yeah, we can't stay in here forever, we need to do something." said Sweetie Belle.

"And a stradagy. A good stradagy." suggested Scootaloo.

"Calm down, girls. I bet Phineas will tell us, he always knows what to do." said Applejack as she later, got closer to him. "What should we do, Phineas? Have any ideas?" she asked.

"I don't know, Applejack." answered Phineas. "I'm running out of ideas. I don't know where Isabella could be."

The group turned around to the other side of the room. The gasped and stood carefully, seeing the trap door was bursting, and eventually, it succeded. They were all prepared to make a run for it, thinking that it was another zombie pony.

But joyfully, it revealed itself as Isabella, popping out of the trap door. "I'm right here." she said.

"Isabella!" cried Phineas delightly as he walked over to her. "I'm sorry we lost track on you! But thank goodness you're-"

"I forgive you, Phineas, but right now we have work to do." said Isabella bothered as she walked over to the others, causing the girls smuged to the situation.

"We may be the only non-ponified ones here in Danville." she said. "I think I figured out where it all started. And if we get there, we might know how it all started and reverse it."

"Wait? How did you figure out where it started?" asked Phineas confused.

"Well, I'm glad you asked." said Isabella as she pulled out a marker from her pocket and uncapped it.

She later walked over to a small whiteboard on the wall and begin to explain. "Mayor Doofenshmirtz was hosting a ceremony earlier this evening to unveil the new water tower in the city. And apparently, he was the first turned into a zombie pony after being bitten another zombie pony, so I decided to investigate by going across the stage where the ceremony took it's place."

The mare and fillies began to worry, thinking that Isabella was going to reveal the truth about the prank, so they had no other choice but to confess it all once it for all.

"Pardoneme, but I think that we should confess somethin' 'bout it" Interrupt Applejack.

"What do you mean?" asked Isabella confused.

"What we mean dear is that we wanna confess that all of this, we partly have something to do." confessed Rarity, causing gasp and shock around the room. "But let's us explain!"

"Okay, we're listening." said Isabella.

"All of this was supposed to be a fake zombie apocalypse to scare our prankster friend, Rainbow Dash, by putting the rainbow muzzle in our mouths from some boxes of joke cookies that she put, and with the help of our friend, Pinkie Pie, acting like zombies, because Rainbow Dash have been pranking everypony in our town called: Ponyville, including us." explained Rarity.

"We did it so that we could flip the tables on Rainbow Dash. But as she was gone and didn't show up anymore, we knew that somethin' was wrong, and we also saw somethin' you guys call: static was surroundin' the boxes of joke cookies that Rainbow Dash put in order to prank us, and we also saw everypony enterin' into a portal that brought us here in Danville, and we knew that it wasn't part of the prank." continued Applejack.

"So that's why we enter to your universe, and when we saw about the chaos that is happening in your city, we decided to investigate and find clues about what could ruin the prank to scare Rainbow Dash." said Scootaloo.

"And as more longer we go, we thought that the idea of the zombie prank seemed like a good idea to make her stop for a while, but then we realized that it was gonna help Rainbow Dash none 'bout it of this prank really happened." continued Apple Bloom.

"Yeah, we could almost make her cry about it, or even hate us about it that she would never come back to Ponyville again." ended Sweetie Belle worried.

"Eeyup, and we also confused to the boys 'bout it, and Phineas have gave us a point about revenge and that is what we were doin' without noticin', we also had to learn the hard way, we're very sorry that it happened, it wasn't funny after all, we're very ashamed about it." said Applejack sadly as she took off her hat and hide behind it.

"Agreed, out upsetness was so big that we didn't thought of that from the beginning." said Rarity as the CMC'S nod their heads ashamed.

"I'm glad you guys confessed, and I'm also glad Phineas woke you up from what are you going to do." said Isabella. "Because that's the important information that we need to stop the sickness and contagion, because you guys will help us, we all corraperate, and you corraporated by confessing the truth."

The mares and fillies smiled after hearing Isabella's words, knowing that they did something useful after all.

Isabella later, she drew out a map-like sketch of the carriage of joke cookies, a portal of 360° and a building that looked familiar.

"Anyways, analizing the progress." said Isabella as she started to explain. "The joke cookies you guys mentioned were six two inches, and the beam that hit them was due to a portal of 360° that opened in the air, so I decided to make a mark behind it and took the angle on it from the point where the carriage was standing in repose and where the portal opened, and found out that this building has something to do that might cause all of this."

"Oh, you used trangulation! Nice!" said Baljeet delightly.

"Great!" cried Applejack. "Now that we know what and where was the cause, let's find out who pony did it the first place."

"Huh, that building looks familiar." said Phineas.

Isabella gave a look to show the view of the building to the nearest window.

"Oh, I guess that's why." said Phineas. "You know, it might be a good idea to board that window."

"Oh, so that's why there was so much wood left there." said Katie as she looked at a corner where was some wooden bars.

Their talking wasn't heard from outside, the group gasped when a zombie pony reached it's hoof though the window in as attempts to grab Isabella to bite her, who shiftly dodged it. "Go! Go!" cried Isabella.

"And I definitely should have closed the window." said Katie by then, being grabbed by the other Fireside Girls.

The group all ran and escaped though the trap door, just before the zombie ponies could successfully break into the lodge of the window.

Isabella popped her head out of what looked like an ordinary tree stamp, checking if the coast is clear. Then, she gestered to the others to follow her, carefully stepping out and hurrying over to the back fence.

"Now what?" asked Phineas.

"We've gotta make our way to that building." said Isabella as she pointed to Doofenshmirtz Evil Inc. "I'm sure we'll find out answers there!"

They ran over to the nearest alleyway that they could find. On the other hand, Agent P was at the top of Fireside Girl Headquarters looking through his goggles, only to see that the group were heading towards a street filled of zombie ponies.

He delta winged there without being noticed by the group as the group stopped into the alleyway. The Fireside Girls put on their zombie pony motleys as quickly as they could.

While the zombie ponies were rampanting all over the streets, Agent P used his grapping hook to hook up a trash can and dragged it, causing the zombie ponies to follow it.

Unbelknowlest to them, the kids and non-zombiefied ponies were seeing the wave of zombie ponies walking away to an alleyway, causing them confused.

"Where're they going?" asked Gretchen.

"I don't know. I'm so confused about it." answered Sweetie Belle.

"Doesn't matter, they're distracted! Let's move!" said Isabella as she and the others continued on.

While that, the zombie ponies saw Agent P sitting there in the trash can, until the moment when they got closer to him, Agent P delta winged up until he was able to corner the zombie ponies into a Repo yard. He landed on the street and left his delta wing to hurriedly shut the gate and locked the zombie ponies in. He sighed in relief, but he turned around and it was now a brief.

He lefted his delta wing unattended, which it was now destroyed by Fluttershy's animals and the animal agents, who were all now cookie zombies themselves.

To be continued.

Act 14

Meanwhile, in Doofenshmirtz Evil Inc, Candace and Vanessa we're running though the hall of the building, escaping from the constants grasps of the zombie ponies.

"In here! said Candace as she and Vanessa went inside a door.

Luckily, the door lead to a stairway that wasn't a zombie pony-infested horror house. Vanessa used a fire hose to tie the doorknob and she and Candace heavily leaned to the door, sighing in relief, taking a moment to process the situation.

"What's going on with your dad?" asked Candace.

"I don't know. His evil schemes aren't normally this successful." answered Vanessa.

"Wait! Phineas and Ferb!" said Candace as she gasped.

"I pretty sure this was not them!" said Vanessa.

"Yeah, I know, but they'll know what to do about it!" said Candace.

They later felt a push on the door, meaning that the zombie ponies were pushing the door with force.

"Come on! Let's move!" cried Candace as she ran downstairs.

"I'm right behind ya'!" said Vanessa as she followed her friend.

The two girls went all the way downstairs, but during that, Vanessa noticed the worried expression on Candace's face. "Are you okay?" she asked.

"Y-Yeah! Why?" answered and asked Candace.

"I don't know. You just seem a little out of it." said answered Vanessa. "Are you worried about your brothers or something?"

"What? No, why should I be?" respond Candace. "I mean, it's Phineas and Ferb, they'll be fine. I-I know they are."

Candace was hiding her worriness about her brothers, she didn't want to reveal it to Vanessa since she could probably laugh at her for being a 'cooler' girl. Candace just hopped that whatever they are, it was far away from any zombie pony.

Meanwhile, out of Doofenshmirtz Evil Inc, The group made it to the building, hiding behind a car that was upside down, seeing if the coast is clear. And fortunately, the building's street is empty of zombie ponies.

"We made it!" cried Isabella.

"It's about time we made from the beginnin'!" continued Applejack.

"Not a single cookie-eating zombie pony on sight." announced Buford. "Now's a good a time to rush in blindly, don't you think?"

"Okay, guys. Let's go. Quietly." whispered Phineas.

The group went quickly and quietly to the building as they could, but unfortunately, they weren't successful, as one of the rubber duckies Buford used to cover his elbows squeaked through the car they were hiding behind, causing it to sound it's alarm.

"COOKIE!!! COOKIE!!!" groan the zombie ponies as the turn around and went slowly to the group.

"Here they come!" announced Isabella.

"They are all over the place!" cried Baljeet.

"More like: They're everywhere!" continued Scootaloo.

"And they're surroundin' us!" ended Apple Bloom.

"Come on! Let's go!" cried Phineas.

Phineas grabbed Isabella's hand and rush as fast as they could to the building, followed by the group that were dodging every attempt of the zombie ponies to snatch them.

"AHHHHH!!!" yelled Baljeet.

"Sanctuary!" yelled Buford.

The Fireside Girls weren't lucky on this one. One of the zombie ponies stepped on the zombie pony motley's tail Gretchen, Ginger and Adyson were wearing, causing the bottom part of it fall out, and Adyson being exposed.

The others made it to the building with success, but Isabella saw though the glass of the door and gasped while seeing the Fireside Girls being surrounded by zombie ponies right after Adyson was exposed.

Gretchen fell over to the ground between two zombie ponies trying to get out, but soon static started to surround Gretchen and quickly transformed her into a zombie pony, meaning that she and the other Fireside Girls had been transformed too.

"CooKIE!" groan the transformed zombie pony.

"No! NO!" cried Isabella in horror, witnessing the massacre that happened.

To be continued.

Act 15

Isabella was witnessing how her Fireside Girl friends were surrounded by zombie ponies, she shed a tear in her face, pressing the window on the door and also, knows who to blame about it.

Isabella refuses to give up, she shook her head and resist to cry as she finds out a way to rescue the Fireside Girls who were now victims of the sickness. "I'm going back for them." she said.

"No Isabella! It's too late! You can't help them now." cried Phineas as he grabbed Isabella's arm.

"Well, I have to do something! I can't just walk away from my friends!" objected Isabella.

"No Isabella! I'm not letting you go back there! I am not going to lose you again!"

But before they could continue to argue, one of the zombie ponies pressed it's face againest the glass "ME WANT COOKIE!!!" it groan.

"AHHHH!!!!" yelled Phineas and Isabella.

Phineas quickly thought ahead and squashed the zombie pony into the revoling door. "Quick! Find something to block this door!" he shouted as the zombie ponies reached their hoofs inside to grab him.

The others looked around the lobby for a blockade on of some sort. "It ain't gonna be easy without ruinin' the feng shui of the lobby." said Buford.

"What's that?" asked Apple Bloom curiously.

"It's somethin' that only humans can know!" answered Buford.

"Hurry!" shout Phineas as he kept blocking the door, he couldn't resist for too long, especially if any others came to enter the building.

But by his bad luck, one of the zombie ponies reached it's hoof though and grabbed Phineas' rubber sleeve and tore a off a piece of it.

"I'm exposed!" he warned.

Isabella was thinking of something that could subtitue his protection, until she looked at her belt and grabbed something.

"Phineas, use this!" she cried as she tossed the Emotional Bravery patch.

"Thanks!" said Phineas as he caught the patch and put it where was the ripped sleeve and skin exposed.

Ferb later hurried to the door and cover it with a potted plant, which seem strong enough to hold off the zombie ponies.

"Nice work, bro!" said Phineas as he and Ferb went to the rest. "Thanks Isabella! Are you all alright?"

"I'm good." said Isabella.

"Girls, are you alright?" asked Phineas as he looked at the mares and fillies.

"Ah'm fine." said Applejack "Rarity, ya' good?"

"Good as always, Applejack." answered Rarity.

"Girls, you okay?" asked Applejack to the CMC'S.

"Ah'm fine." answered Apple Bloom. "Y' fine, girls?"

"I'm okay." answered Sweetie Belle. "Are you okay, Scoots?"

"I'm alright." answered Scootaloo.

"Great! Buford are you okay?" asked Phineas.

"I'm okay!" answered Buford as he later touched Baljeet's shoulder. "Are you okay?"

"I am fine." answered Baljeet smiling, causing Buford to smile too.

Just then, Baljeet felt a touch in his other shoulder, and he takes off his protective glasses to get a clear view as Buford also saw something and looked carefully what it was. Baljeet totally regretted on doing that.

"COOKIE!!" groan Zombie Pony Granny Smith as it stopped touching Baljeet's shoulder.

"AHHHHHHH!!!" shrieked Baljeet as the zombie pony pressed it's teeth in his face, causing static to surround Baljeet's body. Buford tan away from the grip of the zombie pony and his friend transforming.

"Ugggggggg!!!"

"BALJEET!" yelled Buford terrified.

"Coo-" until Baljeet's transformation was complete. "-KIE!"

"That's it! I had enough of this total nightmare!" said Buford angrily as he took off his rubber mask and looked at what used to be his friend.

"Buford? What are you doing?" asked Phineas as he and the others we're surprised.

"Look, I just lost my nerd! 'I'm not gonna lose the rest of my friends too." said Buford while he took off his rubber duckies from his elbows.

The others gasped and know what he was gonna do. "But Buford, that's risky and-" tried to warn Phineas.

But Buford didn't listen to the rest. He already striped his rubber armor and only had his underwear on. "C'mon ya' freaks! FRESH MEAT!!! AHHHHHHH!!!"

Buford darted away over to the zombie ponies with a warrior cry and lead them out the building. "Yippe-ki-yay, ya' cookie-craving zombie pony freaks! YIPPE-KI-YAY-"

But before he could continue with his dramatic last words, he was bitten by zombie pony Twilight Sparkle and colapsed to the ground, and just like that the static surrounding him soon transformed him into one of the zombie ponies. "Ah! Uggg! COOKIE!!!" he groan.

"Y'know, he really could've been bait without taking his clothes off." said Phineas as he watched that he lost two of his friends in a matter of seconds.

"Uh, yeah!" said Isabella as the mares and fillies nod their heads.

Meanwhile, outside the Repo yard, Agent P was surrounded at every corner. Behind him was a group of zombie ponies reaching their hoofs thought the gate's holes in attempting to grab and bite him. While in front of him, the former fellow Fluttershy's animals and the O.W.C.A animal agents, who were now cookie zombies, were torn up his only way of escaping. Agent P looked around, but to his right side, was Harry the Bear, who was now a cookie-eating zombie too.

Agent P just hopped that the boys are alright, wherever there, it did look like he could protect them anymore, or neither save Danville for longer.

Just as he felt hopeless, a strong wind came though as a light shun upon Agent P, he blocked his eyes from the brightness and saw a small helicopter. When the pilot called his name out, he knew exactly who was coming for his rescue.

"Perry the Platypus, need a ride?" asked Doofenshmirtz as along with him was Starlight, Trixie, Rainbow Dash and Derpy (who both Dash and Derpy were still in zombie pony costumes), threw a rope ladder smiling. "Oh, ooh oh wait, I should've said 'Need a lift?' That's what- ah, I totally missed it."

Agent P climb to the rope ladder to safety, which the mares signaled Doofenshmirtz to begin flying upwards from the scene, unaware that Harry the Bear was following them.

Agent P crawled up into the co-pilot seat and sighed in relief.

"It's much safeter up here, huh?" asked Doofenshmirtz. "You might wanna buckle up, though. It's my first time flying a helicopter."

Agent P fastened his seatbelt as the mares saw the view of the blackenviled city.

"Y'know, despite how much Derpy and I fly with our wings, this is pretty comfortble letting something from this world take you a ride." said Rainbow Dash.

"Agreed Dash." said Derpy. "My derp eyes just atmiring this beautiful view of the human city, even though it's dark down there."

"Yeah, totally, I've never ride on a flying thing like this." agreed Starlight.

"Indeed, Starly" said Trixie as she chuckled.

"Well, buckle up and hold still ladies, because we are going to my home!" warned Doofenshmirtz as he flew towards Doofenshmirtz Evil Inc.

Meanwhile, in Doofenshmirtz Evil Inc., the children, mares and fillies blocked the enterence with almost everything of the lobby they could find.

"That'll hold them now." said Phineas. "But we gotta move before-"

But the plant didn't work so well as a barricade. A zombie pony attempted to push and made the way through, followed by a couple of more.

"Really?" asked Phineas unamused. "Come on, guys! Head for the stairs!"

The zombie ponies made it to the building and started chasing the kids, mares and fillies as the others went to the stairway door. Phineas attempted to open it, but only to find out that it was locked. "It's locked!" he annouced.

"Now what?" asked Isabella.

They turned around to see the herd of zombie ponies increase. There was no way to escape at this point, they were cornered. Phineas tried to think, but he was at a loss, he's never been in a situation like this. "Any ideas?" he asked.

"I got nothing!" cried and answered Isabella.

"Girls, any ideas?" asked Phineas to the mares and fillies.

"Ah have nothin'!" warned Applejack. "Rarity, got any ideas?"

"I afraid not, my magic is no useful in this world!" answered Rarity.

"What 'bout you girls?" asked Applejack to the CMC'S.

"Nothin' in mind!" cried Apple Bloom.

"No ideas on my head, my magic isn't useful at all in this world too." cried Sweetie Belle.

"Neither do I have something on my mind!" ended Scootaloo.

"Ferb?" asked Phineas as he looks at him, hopping that his brother got something good on him.

But Ferb only answered: "I'm petrified beyond all capacity for rational thoughts."

Just then, they noticed the door moving behind them, and onced opened, out came Candace and Vanessa who were as just as surprised to see them here.

"Candace?" asked Phineas.

"Phineas!" cried Candace surprised.

"Candace!" said Isabella smiling.

"Isabella?" asked Candace confused about her.

"Two human girls?" asked Applejack.

"Five talking ponies?!" asked Candace as she saw the mares and fillies beyond her eyes.

"Ferb!" cried Vanessa.

But Ferb didn't answer, he just looked at Vanessa.

"Candace!"

"Phineas!"

"Candace!"

"Isabella?"

"Two human girls?"

"Five talking ponies?!"

"Ferb!"

Again, he looked at her.

"Candace!"

"Phineas!"

"Enough! We have to get up stairs!" warned Isabella.

"No way!" cried Candace. "The whole upstairs is crawling with zom-"

But as Candace saw the lobby, she saw the amount of zombie ponies surrounding them. "Stairwell it is!" she cried.

But as she opened the door, she noticed the rubber items her brothers were wearing. "And what's with the rubber?" she asked.

"It insulates us againest the sickness!" said Phineas as he and the others went inside.

"I don't wanna know how you figured that out." said Candace as she closed the door and she and the group went upstairs.

Meanwhile, in the neighborhood, while the streets are infested of zombie ponies, Stacy was still to concentrated on her movie, still unaware of the chaos outside.

"No! Don't walk into the kitchen, Grievance lady! Oh...gosh!" she cried as she grabbed her bowl of popcorn. "How could she be so oblivious about that one?"

Back at Doofenshmirtz Evil Inc, the group were climbing up the stairs, seeing how many flights they'd have to walk up, but it was better for them than being zom-ponified.

"Just keep climbing!" ordered Phineas.

"This is enough cardi...cardio...to last me a lifetime." said Candace tired. "Is it hot in here, or it's just because I'm sweating?

"No, it's actually linda warm. It's not as usually hot in here." answered Vanessa.

"Ew, it's...so...many...sweat on me!" cried Rarity tired and in her drama queen mode. "I need to...take it...off of me!"

"Ah'm used...to sweat the whole...time in the barn...so Ah'm okay with it." said Applejack tired. "Y'know, now Ah know how Dash felt...when she had to walk up stairs in Manehattan...when she couldn't fly."

"What's that?" asked Isabella curiously.

"It's somethin' that only ponies can know." answered Applejack.

They keep walking thought the stairs, they were getting tired, but they couldn't risk on being zom-ponified.

"Wh...Where's your dad's floor?" asked Candace tired and anxious.

"The top floor, we're almost there, I'm kinda used to these stairs." answered Vanessa.

"We're gonna make it, guys. Just...keep going." said Phineas tired.

"I just hope that we...could find something to...end this." said Sweetie Belle tired.

Meanwhile, Doofenshmirtz was heavy looking surprised about the chaos he's done while he flies the chopper, he never expected the way his evil schemes were that successful, since he got used to always fail thanks to Agent P.

"Man, I've had off days before, but this is a lulu, even for me. I never thought I could get sick of my own invention." he said.

"Who saids it!" said Rainbow Dash upset while she looks down, knowing that her own prank ended too terrifying for her. "I also never thought I could get sick of my own prank."

Starlight puts her hoof on Rainbow Dash's shoulder to consulate her, meaning that it wasn't her fault. She just wanted to have fun and that's it.

"Oh, well." said Doofenshmirtz while smiling. "You know, at least with a disaster of this proportion, things can't get any worse!"

But as a tempting fate. Doofenshmirtz looked behind him to find out that they were not alone in the chopper. He whimpered as he saw Harry the bear growling at him with angierless. Harry later begin to pull Doofenshmirtz out of his seat and begin to attack him.

Doofenshmirtz was thrown out, knocking Agent and the mares with him as the mares scream, but surprisingly they were able to hold on the chopper.

"Uh, Perry the Platypus, when you get a minute, grab the controls, would you?" asked Doofenshmirtz while holding the platform of the chopper.

Harry grabbed Doofenshmirtz by his shoulders and pulled him back in, continuing to ambush him in the back. Agent P and the mares succeed to the front and Agent P went to control the chopper as he was on the pilot seat. He was a little short to see what was going on, and he wasn't able to steer with all the commotion in the back. The mares on the other hand were tighten up their seats. Hoping to get a better landing.

"This is so diziy as I expecteeeeeeed!!!!" cried Rainbow Dash.

"Woooooh!!! My derp eyes aren't used to this type of flighhhhhhhhht!!!" cried Derpy.

"We're gonna have a big craaaaaaaash!!!!" cried Starlight.

"I want my mommyyyyyyyy!!!" cried Trixie scaredly.

Agent P was soon able to fly the chopper over in the direction of Doofensmirtz Evil Inc. He also hopes that they could get a better landing.

To be continued.

Act 16

Meanwhile, at Doofenshmirtz Evil Inc., The group rushed out of the stairwell door, Vanessa knows that she and the others made it to the top floor. "This is it, my dad's floor." she said.

"Thank goodness!" cried Candace out of breath.

"Yeah, It 'bout time." said Applejack as she was still catching breath.

The group moved to a door that lead them to Doofenshmirtz's lab, only to reveal that the lab was filled with with countless zombie ponies.

"Woah, this place is crawling with them." said Vanessa."

"That's it! cried Isabella as she spotted and pointed to the destroyed machine. "That must be where the ray went to!"

"Great, now we know what was the cause, let's find who pony did it in the first place." said Applejack, hopping to find the true culprit of all this.

"Ugh! If there was a way to get rid of all those zombie ponies." said Candace.

Candace had predected it's fate, as a helicopter was flying around and around until it crashed into the balcony and whirled around, throwing the zombie ponies backwards, even knocking them out. Unknowngly to them, Agent P was flying the chopper, until he was thrown by the controls and knocking him out and being unconscious. The mares on the chopper on the other hand were alright, but they still suffered a big impact. Harry the Bear was even thrown into the Startle Space.

The chopper later, went to knock the other zombie ponies that were in the lab, causing them to be sprawled into the floor and some we're stuck behind the chopper. "cookie-" groan the zombie ponies lowly until they were unconscious.

The group just stared around, seeing the zombie ponies in the floor, completely cold.

"Strange and unusual." said Vanessa.

"Same old, same old. Come on!" said Candace as she and the others rushed to the destroyed machine.

Doofenshmirtz and the mares climbed out of the chopper, coughing and brushing the dirt off their arms and hoofs.

"Dr, Doof, are you okay?" asked Rainbow Dash.

"Yeah, I'm fine." answered Doofenshmirtz. "What about you guys?"

"We're fine too." answered Starlight.

"Great!" said Doofenshmirtz. "Ugh, I just hope the poor slob who lives here has insurance. That would be-"

But just then, he looked around and realized that they were in the lab, knowing that he was the poor slob. "Ah, no!"

Their eyes lit up upon seeing a group of children running over to the balcony, followed by a couple of mares and fillies.

"Vanessa!" cried Doofenshmirtz delightly

"Scoots!" cried Rainbow Dash delightly.

"Dad! It's you!" cried Vanessa delightly as she and her dad hug each other.

"Rainbow! It's really you!" cried Scootaloo delightly as she and Rainbow Dash hug each other. "Okay, where have you been? You got me so worried. And why is your mouth...rainbowfied?"

"Sorry about it, Squirt. Also, it's a long story." said Rainbow Dash.

"Rainbow!" cried Applejack and Rarity delightly.

"Girls! I'm glad you guys are the only ones with correct minds!" cried Rainbow Dash joyfully as she and the others hugged each other.

Later, Applejack, Rarity and the CMC'S saw Starlight, Derpy and Trixie stand behind Rainbow.

"Starlight?" asked Applejack.

"Derpy?" asked Rarity.

"TRIXIE!?" asked both surprised and angrily.

"Hi!" said Starlight, Derpy and Trixie while they waved and smiled.

"What are you guys doin' here?" asked Applejack.

"We knew what was going on and we came here until Rainbow Dash came here and we came here to this building and this man helped us on our journey." explained Starlight as she pointed to Doofenshmirtz hugging Vanessa.

"Okay, so what do you do?" asked Vanessa while she and her dad broke the hug.

Doofenshmirtz tried to explain. "Well, Uh, It was-"

But before he could move on, Applejack and Rarity got closer to Doofenshmirtz madly, finding out the responsible of this.

"So it was you! Huh?" asked Applejack angrily.

"Well, Uh, I-" tried to continue Doofenshmirtz.

"Do you have any idea of how much we spend to do this, and you and your stupid machine had to ruined it!" interrupeted Rarity angrily.

"Well, it wasn't my-" tried to defend himself Doofenshmirtz as he was starting to get angry too.

"Thanks for ruin everythin' to give Dash a taste of her own medicine!" said Applejack.

Just then, Applejack covered her mouth as she realized what she said and it could be possible Rainbow Dash was hearing, and she was not wrong. Rainbow Dash turned her head around with a 'I heard that' stare. "What do you just say, AJ?" she asked with a manecing look.

"What? No! Ah-Ah mean, you've must heard it wrong, hehe!" said Applejack nerviously as she and Rarity and the CMC'S agreed.

"And they say you're the honest apple, huh?" asked Rainbow Dash as she knew that her friend never lies.

Applejack, Rarity and the CMC'S saw Rainbow Dash with her hooves crossed and a Starlight Glimmer with a 'I told you' stare. They also remembered the time Phineas scold them about that. So they had no choose but to to the right thing in scenario.

"Ugh. Fine, you got us, You heard it right." said Applejack as she took her hat off ashamed.

"I'm confused, can any pony tell me what is going on?" asked Rainbow Dash confused, having no idea of what she heard.

"What we are telling you is that the wall of all this was supposed to be a prank to scare and teach you a lesson about pranking." explain Rarity.

"Eeyup. When Pinkie Pie told us about your plan to prank the whole town of Ponyville, she've got everypony together and came a way to turn the tables on you." said Applejack as a flash back shows of all Ponyville practicing for the prank.

"But when you were gone and when we saw everypony seeing into a portal that lead us here in Danville, we knew something wrong and we investigated to see how it went wrong and make the pony responsible pay for it." continued Rarity as a flash back of act 6 shows in shorts.

"And honestly, we first thought that the prank we planed for you seemed like a good idea at the beginnin' to scare ya' and stop prankin' for a while, but then we realized that it won't end up good if it really happened." said Applejack as she bowed her head.

"Yeah, we could make you hate us that you won't never come back to Ponyville." said Scootaloo ashamed as she bowed her head, to the wrong thing to her sister.

"Yeah, we could even give you a chance of death." cried Sweetie Belle.

"Or even make you cry!" ended Apple Bloom.

"Eeyup. And Starlight tried to tell us from the beginnin', but our upsetness didn't allow us to listen, and now we regret on doin' it." agreed Applejack. "And if it wasn't for Phineas who scold us about revenge we couldn't be more sorry for that."

"And that's why we wanna say to you Rainbow Dash, we're terribly sorry! Our upsetness was so big that we never took the time on processing it from the beginning." said Rarity as she bows her head, causing the CMC'S bow their heads too.

"Well, you better be!" yelled so hard Rainbow Dash angrily, hearing that her own friends and sister could do that on her. "Cause I'm so mad with you guys that all of this was planned! I can't believe that you guys would something harsh to me! Sure, I caused a lot of pranks on you guys, but at least none of them have the intention to kill any pony! It like all of you lost your sense of humor! The only pranks that I knew messed up were on Fluttershy, You AJ, Cranky and Mr. Cake, the rest were only just dumb and I recognize it. So what wa the point to do all of this when there was another and smaller way to get me back. But noooo! You guys had the brilliant idea of a zombie prank to 'flip the tables on me' so I could probably die for that! Now thanks to you guys, I have to wear this stupid muzzle on my mouth, but like them and utter 'cookie!' 'cookie!' 'cookie!' 'cookie!' so I can avoid all of those cookie-eating zombies around this city and all because you guys did a harmful thing to me! And none of this would have ever happened of you guys did a harmless thing that might stop me!!!"

Rainbow Dash was still catching breath of how angry she was as Applejack, Rarity and the CMC'S were shocked at the way Rainbow Dash yelled at them. It was almost like Phineas scold them again. But they didn't have anything to counterdict her words and knew about their biggest mistake, so why complain for that when it was all true what Rainbow said.

"You're truely right Rainbow Dash!" said Applejack as she hid herself behind her hat. " Our upsetness was so big that we didn't noticed the consequences if this prank actually happened, and I glad you regonized your mistake too."

"Yeah, if it wasn't for Phineas, we wouldn't be more sorry." said Rarity as she bowed her head as the CMC'S nod their heads.

"And Starlight, we're very sorry we didn't listen to you from the beginnin', if we did, none of this would have happened." said Applejack.

"I told ya' guys, but I forgive you, I just wanted to say that making a wrong doesn't make it right. Take it from a pony who did that. And I also told Pinkie Pie at Sugarcube corner when she was faking the sickness."

"Really?" asked Rarity.

"Yep. It all started when I was heading towards Sugarcube corner." said Starlight as a flash back of her heading towards Sugarcube corner.

(To see the flash back, go to the story 'Consciencious Objector' by Inspector Brown here in Fimfiction, I give credit to him. Here's the link to the story if you wish to hear it. :twilightsmile:)
fimfiction.net/story/343532/consciencious-objector

"And that's how it happened, I also tried to tell you guys as well, but I received the same reaction and words from you guys. So with that I had no other choice but to listen to Pinkie Pie, but I went to the hall, I saw Twilight and Spike being surrounded by something weird and fainted while that thing was surrounding them. So I telported to Trixie's and found somepony that was Derpy, who was also upset for the zombie prank too and entered into the same portal Rainbow Dash enter that lead us here to Danville. And now we're here." said Starlight as the flashback ends.

"Oh, dear." said Rarity. "How could we didn't noticed this?"

"Ah don't know, but what we know was that you were doin' the right thing in scenario." said Applejack.

"Yeah, good thing I didn't want to join you guys for the prank, otherwise I would feel more guilty, like you guys." said Starlight.

"Yeah, Ah know." said Applejack sadly as she put her hat on and bow her head.

"Indeed." said Rarity. "We're very sorry that we didn't listen to you Starlight, of we did, none of this would have happened."

"I forgive you guys, like I said before, I just want to tell you that wrongs don't make it right, take it from a pony who did that." said Starlight.

"And also, none of this would have happened if somepony wouldn't have to add that thing called 'static' surroundin' everypony and trunin' these humans into our pony species with everythin' from the zombie prank." growled Applejack angrily as she walked over to Doofenshmirtz, causing Starlight to groan.

"Yeah! Thanks for ruining everything to prank the prankster back." said Rarity upset.

"Hey! It wasn't my fault! I never had this planned in the first place." defended Doofenshmirtz.

"Dad! Just tell us what did you do?" asked Vanessa as she was getting upset of her father.

"Yeah! Tell your daughter what have you done!" said Applejack upset.

"Well, It was a simple Repulse-inator, y'know to-to make Roger ugly and grotesque, but then there was this sort of power surge and a portal opened out of nowhere and striked the beam to those supposedly joke cookies you mentioned and this happened!" Explained Doofenshmirtz as he, Vanessa and the mares and fillies walked over to the destroyed machine.

Phineas was exanimating what was left on the inator, tinkering with the wires. "Hmm, so that explains the unicorn spell combined with the electrostatic charge that's changing everybody. But we need is some kind of cure and mix it with-"

"Hmm, I think I have some a bit of herbal bath stuff that I got from the spa." interrupeted Rarity as she grab a bottle of herbal bath stuff.

"And do you think it's gonna work?" asked Trixie confused.

"Well, it's mixed with some ingredients Zecora had made for a cure, and she told me, Aloe and Lotus to save it just in case. So here you go Phineas." said Rarity as she handed the bottle to Phineas.

"Thanks Rarity." said Phineas as he grabs the bottle. "But we can't just spray it around despite the static surrounding everybody. So that's why we need to mix the cure with some conductor that can neutralizes it."

"Well, water neutralizes static." said Isabella.

"Yes!" said Phineas delightedly. "Water with cure can change everyone back."

"Um, isn't that a bit of a leap?" asked Vanessa as she thought about it.

"Yeah, at least something that doesn't wet my mane?" agreed Rarity as she got delicaded for the water.

"Nah, I'm a scientist. I'm gonna go with them on that." said Doofenshmirtz.

"Eeyup, and I got used to get wet the whole time, so Ah'm also gonna go with them too." agreed Applejack.

"Yeah, I may have a water pistol lying around. I can go get it." said Doofenshmirtz.

"And Ah'm gonna go with the doctor and get some water buckets for the trick." said Applejack.

"Yeah, but we've gotta find a way to get everyone wet and cured at the same time, otherwise the sickness and contagion could start over." said Phineas as he thinks of an idea of what Doofenshmirtz and Applejack said.

"We can wait until it rains" suggested Isabella.

"Ugh, we don't have much time. And when does it rain here?" cried and asked Candace.

"Yeah, and me and Derpy can't even bring clouds because I can see that the weather works differently than the weather from Equestria." said Rainbow Dash.

"Unfortunately, the water went out with the power." said Phineas. "So we need to find a large supplier of water. Preferble elevated so that gravity can work in our favor."

Ferb pointed over at the water tower that was not 20 feet away from the balcony, giving Phineas an idea of how to wet and cure the whole city.

"Yeah, I know." said Phineas as he took out a chuckle. "We just need to build a pulley system to get us there and put the cure inside of that water tower and put some sort of giant sprinkler to spray the whole city."

"There's always lots of spare laying around here." said Vanessa gestering to the floor.

"Yeah, it kind of messy around here, ugk!!! said Rarity in her almost drama queen mode.

"I like to tinker." said Doofenshmirtz smiling.

"Good for ya' Sugarcube." said Applejack proudly.

"Let's get to work!" said Phineas determedly

The group began to build the vortex sprayer and the pulley system, using what they could find in Doofenshmirtz's lair. It wasn't easy, considering how much time they got left, but they did what they could do, and with Phineas and Ferb leading in the project, it would be a success. Doofenshmirtz suggested instlling a self-destruct button, just in case, but Phineas refused, causing Doofenshmirtz retire sadly.

To be continued.

Act 18

They all hopped into their feet and hooves and ran up stairs as fast as they could, despite being out of breath. Unbelknowlest to them, the zombie ponies were climbing up the water tower, intending to ponify the kids, mares and filies to prevent them from saving the city.

They stop their tracks, since they saw zombie ponies in front and back from them, knowing that they were surrounded.

"We're not gonna make it!" cried Phineas as he and the others leaned againest the wall, he didn't want to admit it, but things were going wrong. Really Wrong! TOTALLY WRONG! He knows that they were they only unbitten ones in Danville, if they couldn't get to the vortex sprayer, the life on Danville will end for good. No hopes now and no humans around in the city. It is all over for them and the entire town now.

But Ferb shook his head, he wasn't ready to give up just yet, he had faith that his brother and his friends can do this on their own, even if isn't meant sacrificing himself. He put his hand on Phineas' right shoulder and speak to him in a serious tone. "No! You and the girls will make it!"

Ferb instantly charged to the zombie ponies that were blocking the way in front.

"What? Ferb! No!" cried Phineas pleaded as he went to stop his brother.

Too late. Ferb climbed to the stairway's tubes and fling himself at the zombie ponies in front, knocking them out of the stairway, only to grab the tubes. But if isn't enough, zombie pony Fluttershy grabed Ferb from his mask with it's teeth, and even worst, it yanked his rubber mask, living his head exposed. Zombie pony Twilight quickly flew towards Ferb and bit him on his neck, causing static surrounding him.

"Ferb!" cried the group in shock at his sacrifice.

Rainbow Dash and Derpy attempted to rescue the green-haired boy, but they stop since they saw his human body turning into pony body, and wearing a rainbow muzzle on his mouth.

"Ferb!" cried Phineas as he got closer to him.

But Isabella grabbed him and rush him away from the green-haired boy transformed into a zombie pony. "Phineas! No! Don't touch him!"

"COOKIE!!!" groan the transformed zombie pony.

"But Ferb! I-I can't..." said Phineas sadly.

"We have to continue on, we have to save everypony in this city!" cried Starlight.

"She's right, Phineas. We have to go!" agreed Isabella.

But Phineas refused living behind what used to be his brother. "B-But I can't just-"

"I know, but the only way to save him is to keep going!" said Isabella. "We'll get him back. I promise!"

Phineas nod his head, knowing that she was right, he had to stay stronger to save his brother, family and friends. That's the only way.

"Come on!" cried Isabella as the rushed.

The group continued forward until they reached and went into the climbing ladder, Rainbow Dash and Derpy went on top of the water tower and standed there, hoping that the rest came with good.

"COOKIE!!!" COOKIE!!!" groan the zombie ponies as they stretched their hooves though the holes of the ladder with the intention to grab the group and bite them.

The group were dodging the hooves of the zombie ponies.

"Phineas! AH!" cried Isabella as her heart was pounding, not only for the adrenaline, but also for the fear and beginning scared out of her mind for various reasons.

"AH!" cried the mares and filies.

"Hang in there, girls! We're almost there!" annouced Phineas.

"It's just, if this is the end, there's something really important I have to tell you!" cried Isabella.

"Okay Isabella, shoot." answered Phineas.

Then Isabella started. "For the longest time, I-"

But before Isabella could continue, the group finally reached to the vortex sprayer.

"Come on! There it is!" cried Phineas as he went to open the hatch.

"But Phineas!' cried Isabella. "Phineas!" She had enough of being interrupeted, she was gonna be listened this time, especially when it's the last chance for Phineas to hear this.

"I LIKE YOU!!!" she yelled bravery.

"I like you too, Isabella!" said Phineas, unknowing that it was serious.

"No. I mean..." said Isabella as she shook her head and walked over to Phineas, a bit red cheeked. "I like you, like you!"

"Awww!" said the mares and filies, knowing that the power of love also works in the human world and not just in Equestria.

"Now that's the power of love!" said Apple Bloom.

"Yeah, I didn't know it also works in the human world." said Sweetie Belle.

"Agreed, if Princess Cadance was here, she would be delighted of this lovely scene." said Scootaloo as the ponies nod their heads.

Phineas didn't know what to say after that heard, a red blush appeared on his cheeks and stared at Isabella in awe. "Wow! I mean, gosh. I-I-I've always felt...well-"

Isabella was nervious about what Phineas was gonna say as the ponies stopped smiling, seeing that the power of love doesn't work like in Equestria.

But this time, Phineas was the one interrupeted.

One of the zombie ponies had caught up to them and attempted to grab Isabella or any of the ponies, they screamed and braced themselves, preparing to be one of the zombie ponies now

But Phineas wouldn't let that happen, he quickly swinged againest the zombie pony. "Get away from them!"

"Phineas!" cried Isabella as she gasped, seeing her crush on his knees, with his rubber mask off and static surrounding the red-haired boy's figure. "No!"

Phineas quickly grabbed the herbal bath stuff and the giant spoon from his pockets and hand them to the rest, along with the hook as he grunted.

"Uh! G-Go!" he grunted.

Isabella quickly grabbed the hook, Apple Bloom grabbed the herbal bath stuff and Scootaloo grabbed the giant spoon just in time before Phineas' transformation was complete.

"Ug! COOKIE!!!" groan the red-haired zombie pony.

"No, not Phineas!" whispered Isabella as her tears we're dewelling from her terrified face. The CMC'S were also terrified, they saw transformations away from them, but one closer to them was more scarier, knowing how Dash would feel if the zombie prank happened. They know that a lovely couple was separed from a sickness they made in order to prank the prankster.

"Oh... Phineas!" said Isabella as she cried.

Apple Bloom touched Isabella's leg, meaning to her that the only to get Phineas back is doing what she has to do. Isabella got up and knew Apple Bloom was right, she took her tears and thought, no, this isn't Phineas, he trapped in a body that's not his. He said he would stay strong for everyone he loves, and now she has to do it for him. And despiting that Isabella was wearing a Fireside Girl uniform and the CMC'S Filly Guide Scout uniform, meaning that a Filly Guide Scout and a Fireside Girl had to team up on this one.

"You're right, girls!" said Isabella. "Let's get it together, now it's up to us Filly Guiders and Fireside Girl to save Phineas!" Now it's up to us to save Danville!" Now it's up to us to...stop talking to yourself!"

The group once they reached to the top, Isabella opened the hatch of water tower, she could see that there's too many water tower, knowing that they could all be cured in no time.

"Cure!" said Isabella as Apple Bloom passed the herbal bath stuff bottle.

Isabella opens the bottle and drops the liquid into the water tower.

"Now, the big baby!" said Isabella as Scootaloo passed the giant spoon.

Isabella once with the giant spoon, she started to mix the herbal bath stuff with the water of the tower. It could need time to make it dissolve it all.

Unbelknowlest to the Fireside Girl and the Filly Guide Scouts, the zombie ponies reached to the ledge of the water tower. Rainbow Dash noticed this and she saw the perfect opportunity to fix her mistake. "Stay here! I'll distract them!" she cried.

"What? Rainbow! No!" cried Scootaloo pleaded for what here older sister was gonna do.

Too late. Rainbow Dash lead the zombie ponies to her way and landed to the ground, ready to sacrifice herself. "You guys want me? I'm so here right now!"

"Dash, you're gonna turn into one!" warned Derpy worried.

"No Derpy! I'm saving you guys and correcting my mistake, so you guys move on with out me." said Rainbow.

Just as the zombie ponies got closer to Rainbow Dash, one of them bite her and static started to surround her, once she collapsed to the ground and fainted, she later got up and now she was one of the zombie ponies, for real this time!

"COOKIE!!!" groan the zombie pony rainbow maned pegasus.

"NO!!!" yelled Scootaloo as she started to cry, knowing that the pony who considered her mom and sister was now a mindless repulsive cookie-craving zombie pony, and the sad truth was this was also her mistake for being involved in a prank that she wished that she would never have participated.

Scoots, calm down!" cried Apple Bloom.

"No! This is also my fault!" cried Scootaloo. "I'm also involved in this! And look at the price I'm paying for! If I would've been with Rainbow Dash on her pranks from the beginning, none of this would have happened!"

"No, Scoots. It wasn't your fault, we just had to teach your sister a lesson, but ended wrong thanks to the scientist and the machine." said Sweetie Belle.

"What do you mean!?" asked Scootaloo. "Look at this! We made this! We're also involved in this! We made the prank and look! We are the big pranksters now! We're...MONSTERS!!!"

The rest were shock at that last thing she said, it looks like the was no way to confort Scootaloo on this one. Her sister was the only thing that much matters to her in the world, and now she was gone because of her biggest mistake.

And if isn't more worst, zombie pony Twilight was flying and quickly snuck up behind Derpy and bit her, causing Derpy to scream and static starting to surround her.

"Derpy!" yelled Starlight.

Derpy collapsed to the ground and fainted for a while, once she got up, she was now one of the zombie ponies this time. "COOKIE!!!"

Starlight saw that Isabella wasn't finished on mixing the cure with water, so she and Trixie with their magic, they made a magical bubble shield to protect them until Isabella was finished. But by their bad luck, they were in human territory, where magic doesn't exist, so the shield was losing it's power quickly and suddenly, disappeared.

The unicorns were tired of trying to force their magic too long as they could, and even worse, the zombie pony alicorn quickly bit Starlight and Trixie, they collapsed to the ground, static surrounding them, once they fainted, they got up wearing a rainbow muzzle on their mouths.

"COOKIE!!!" groan the zombie unicorns.

The CMC'S witnessed them as zombie ponies, they knew that they're the only unzombified ones from Ponyville.

"Now all of them are now zombies!" cried Apple Bloom scaredly.

But unbelknowlest to them, zombie pony Twilight rushed quickly to bite the CMC'S as static was surrounding them, they feel to the ground and fainted for a while. Only by then, getting up and becoming part of the zombie ponies.

"COOKIE!!!" groan the zombie filies.

Isabella was finished mixing the cure with water, as she threw the spoon backwards and puts the hook into the hole. She stood up and saw from the edge how the vortex sprayer lifted itself up to be put in place. But it didn't came by itself. A group of zombie ponies (Pinkie Pie, Twilight, Fluttershy, Mrs. Cake and Big Mac) rode on top of it, which warned her that she had to speed things up.

Once the vortex sprayer was put in place, Isabella quickly ran over the vortex sprayer and opened the button door and slammed her hand over to the red button to activite it. But to her dismay, nothing happened. She later looked back and she saw that the rest were now zombie ponies too.

"C'mon! Come on! Work!" cried Isabella desesperaded.

She later walked to the back of it and punched the vortex sprayer a lot of times. The zombie ponies that were on top of it got off as more started to crawl on top of the water tower, having Isabella surrounded. "Work! Work! You piece of unworkable junk! Work!" she shouted as she was still punching the vortex sprayer.

But later she gasped as she felt two hoof touches on her ankes and felt teeth touch on such as her ankes, like her head, static started to surround her, she grunted in attempting to give the last punch to the machine. "Got to...."

But nothing happened, she was transforming into a zombie pony. She nearly cry in defeat. She was the only one left and failed on saving Phineas, her family, her friends, her beloved ones, everyone, and everypony. They were all doomed now. No one else was gonna save them now.

"Uhhhh, Ahhh....Coo...KIE..." she groan, the sickness was dominating her body. She was now one of the zombie ponies. With no mind nor control. She was the city's last hope. And it's too late for that now. That last hope is now gone forever.

Danville was now a blackened hole.

The End.

Author's Note

That was a terrible ending:fluttershysad::fluttercry::applecry::raritycry::raritydespair::pinkiesad2:, but what do you think what would happened next? Will the vortex sprayer work, or will Danville remain like that forever?

Act 19 (Finale)

A/N: Gotcha! You guys thought I would end it here, right? Ha! Never! This is the real ending, but don't think it's complete, I need to make the alternative ending and the bonus chapter. Enjoy this ending.

The sun rised over the horizons, the vortex sprayer finally worked, it was spraying the herbal bath stuff and water all over the city, reversing the sickness and turning some zombie ponies back into humans.

The first one on being turned back is the first one on being bitten, Mayor Roger Doofenshmirtz. Although, he seemed more confused and doesn't remember about this events that happen, except for the ceremony of the water tower.

"Is the ceremony over?" he asked.

The nexts one we're the zombified ponies from Ponyville that we're in someplace of the city, the water also removed the rainbow muzzles from their mouths, turned their color shades back to normal, although their manes were all wet despite the water.

The shook off the water and looked around, having no idea what happened nor where they were at, the only thing they could remember was trying to prank back Rainbow Dash.

"What just happened? Is the prank over? Did Dashie learned her lesson?" asked Pinkie Pie confused as she and the others looked around. "Where are we? I feel like we're not in Ponyville anymore. I'm confused!"

Next on some random citizens and on the Fireside Girls, who still had memory on what happened and smiled.

Later on Mayor Monogram and Carl, who they neither have memory of what happened and thought that Agent P saved the city.

"Carl?" asked Mayor Monogram as he looked at his and Carl's arms zombie gestered. "Why are we holding our arms like this?"

Then, on a citizen, a pintor and Buford and Baljeet, who they don't remember anything that happened.

"I dunno know what happened here? And I'm pretty sure I don't want to!" said Buford.

And finally on some citizens that were climbing up the water tower, including on Shaun and Ed, who they still remember what happened, but they don't get about the muzzles on the zombie ponies.

"I still say that this makes no sense at all." said Shaun.

"I know! Right?" asked Ed.

The sickness spreading the city was reversed thanks to the herbal bath stuff and water mixed, it was all back to normal.

At Doofenshmirtz Evil Inc. Candace was standing by the broken ledge of the balcony, staring at the sunrise and the apocalipsis zombie pony coming to an end. The only thing she could remember was pushing Vanessa de being zom-ponified. "Great, this has been an awful and eventful night!"

"Oh, hey there Candace. Thanks for saving me back there. Are you okay?" said and asked Vanessa as she, Applejack and Rarity were approaching to the younger orange-haired girl.

Candace leaned back in a 'cool' manner. "Oh, yeah, totes. Just hangin' out, rockin' the wet lo-" but then she stopped and realized that there was no point on doing that silly facade anymore, since she saw that Vanessa was totally diferent from the other 'cooler' girls she met. "Oh, who am I kidding? Look at me."

"Are you Kidding me! I'm so wet!" cried Rarity in her drama queen mode after seeing her messy appearance. "How I'm able to get the wet all over me now!?

"Don't worry, Ah'm used to get wet the entire time." chuckled Applejack. "At least everthin' went back to normal."

"Yeah, maybe your right Applejack." said Rarity as she realized that she also sounded silly. "It was for a good reason."

"Hm, well, your guys were cool down pressure." replied Vanessa. "You were pretty brave back there."

"Thanks." said Applejack. "You guys were also rottin' bootin' with all the chaos in there."

"And so elegant too I see." said Rarity.

"Thanks guys," smiled Candace. "You weren't so bad yourselves!"

"Thanks!" chuckled Vanessa. "it was good hanging with you guys. We should do it again sometime. Preferable without the threat of a zombie pony apocalypse."

Suddenly, Applejack and Rarity saw Rainbow Dash, Derpy, Starlight, Trixie and the CMC's from the skies, landing on the balcony. Although Dash and Derpy were still in their zombie pony costumes, since the water and cure can only eliminate the bad effects of the sickness and contagion.

"Apple Bloom!" cried Applejack delightly.

"Sweetie Belle!" cried Rarity delightly.

"Applejack!" cried Apple Bloom delightly.

"Rarity!" cried Sweetie Belle delightly.

They hugged each other and sw that they were all okay. Since the sickness was reversed.

"Ah'm glad yer alright sugarcube." said Applejack as Apple Bloom smilied.

"I'm glad you're okay, Sweetie Belle." said Rarity as Sweetie Belle smiled.

They broke the hug and went towards Rainbow Dash delightly. "Rainbow Dash!"

"Girls!" cried Rainbow Dash as she, Applejack and Rarity hugged each other.

"Starlight, Trixie, Derpy!" cried Applejack and Rarity.

"Girls!" cried Starlight as she, Trixie and Derpy also went to hug everypony.

"I'm glad you guys are alright." smiled Rarity.

"Eeyup! And Ah'm glad everythin' went back to normal." said Applejack.

"Totally." And we all learned a valuble lesson. Isn't that right, girls?" asked Starlight as she glared at the mares and filies suspectfully.

"Yeah, we guess we did." said Rainbow Dash ashamedlly

"Yeah, I know." said Rarity ashamed too.

"Eeyup!" agreed Applejack as she took off her hat and the CMC'S nod their heads ashamedly

"I'm sorry everypony." apolgized Rainbow Dash. "I haven't really been thinking about how other ponies feel. I was going so crazy on my pranking that I didn't know I was going to far. I just wanted to have fun with you guys."

"We accept yer apolgizes, Ah'm glad you learned your lesson." said Applejack. "And we're terribly sorry we wanted to scare and teach ya' a lesson in a harmful way. Our upsetness was so big that it never give us time to process the consequences that's gonna give us for our actions."

"Yeah, and if it wasn't for Phineas who scold us for it. We wouldn't be more sorry." said Rarity as the CMC'S nod their heads.

"Don't worry guys, I had to learn the hard way." chuckled Rainbow Dash.

"Eeyup. We also had to learn the hard way too." said Applejack as the others nod their heads.

"I'm not making any promises." chimed Doofenshmirtz in smiling as he got closer to the girls, mares and filies. He wasn't soaked like the others, since he avoided the splashes of water and cure. It's not like it mattered since he was immune to the sickness anyway. "No need to thank me, I'm just glad to help you guys from this mess."

"You do know that you're also responsible of ruining the zombie prank and also causing the domination of a city, right?" asked Rarity bothered as Applejack and the CMC'S looked at him bothered too.

"But it was an accident," defended Doofenshmirtz. "I never wanted to cause this from the beginning. I swear that a portal opened and send my machine's beam to your universe and striked the joke cookies you call and all of this happened."

Applejack later realized that he was saying the truth, since she and the others also saw a portal that lead them to Danville. "It's okay, Sugarcube, we believe ya'!" She said as Doofenshmirtz smilied.

Later, she realized that Dash and Derpy are still in their zombie pony costumes. "And speaking of it, Dash, aren't you and Derpy remove the muzzles on your mouths and tell Starlight to change you guys back? Ah mean, You don't have to act like ones now."

"Nah!! I wanna keep this muzzle in my mouth and stay like this for a while," said Rainbow Dash. "it's to remember the greatest adventure we had along, right Derpy?"

"Indeed, Dash! It was a lot of fun to be part of this adventure." said Derpy.

"So do we all do!" said Rarity joyfully.

Everyone and every pony laughed, learning two lessons, Rainbow Dash learned that never go far on her pranks, while Applejack, Rarity and the CMC's learned that wrongs never make it right.

"Well, I have to go. Mom and Dad are with doubts about me and my brothers, see you guys around!" said Candace as she leaved the lair.

"See you too Candace!" said Everyone and Every pony.

"C'mon Apple Bloom, let's find Granny Smith, Big Mac and every pony to tell them 'bout the situation." said Applejack a she grabbed Apple Bloom to her back and leaved the lab.

"Let's go Sweetie Belle, we're going to find every pony and see if Phineas can make a portal that goes towards Ponyville." said Rarity as she grabbed Sweetie Belle on her back and followed Applejack.

"Come on, Squirt!" said Rainbow Dash as she grabbed Scootaloo and put her on her back, she and Derpy leaved the lab. "And will talk about this later, young lady! Cause I'm a bit sentimental with you!"

"Let's go home, Trixie. I bet Twilight and the others are confused about this, so let's give them a big explanation." said Starlight.

"Okay, Starly." agreed Trixie.

"Come on, Dad. Let's play a game of 'Kleptocracy'." said Vanessa as she held her father's hand.

"That's my girl." said Doofenshmirtz happy.

While the others were gone from the lab and the building. Doofenshmirtz and Vanessa were heading towards the Startle Space. Doofenshmirtz looked around the lab, seeing the mess, especially with the wrecked chopper inside his department. "Yessh, that's gonna be an expensive fix!"

Once they reached the wrecked chopper, they heard a chattering coming from it, they look and saw Agent P who was consciousness about the events.

"Perry the Platypus! Are you okay?" asked Doofenshmirtz as he kneeled to the floor.

Agent P coughed a bit of water and gave him a thumbs up, forcing a small smile. His head was hurt, but at least he wasn't a cookie-craving zombie anymore.

"Well, that's a relief." said Doofenshmirtz as he stood up. "I'm glad you both are okay. I sort of lost it after you guys turned into one of my 'minions'. It was freaky man! Especially you Perry the Platypus!"

Vanessa laughed a little as Agent unamused rolled his eyes embarrasedly. "Hey, Perry, ya' wanna join us for Kleptocracy?" she asked. "We could use a third player."

"Yeah. It'll be nice to relax after a long night!" agreed Doofenshmirtz. "And I promise that I won't cheat! That much."

Agent P smiled softly and nodded, figuring that it wouldn't hurt to catch a break. It had been a long and rough night for him after all. Doofenshmirtz held his hand, which Agent P gladly took and lead him and Vanessa to the startle space.

Meanwhile, in the water tower, Phineas was climbing up to the water tower, later he saw Isabella standing next to the vortex sprayer confused and got closer to her. "Isabella! Are you okay?

"Yeah. Just a bit foggy." answered Isabella.

"What happened?" asked Phineas.

"Remember building the vortex sprayer once I've put the cure inside the water tower, but after that I've got no clue." explained Isabella.

"Me neither. But whatever happened, it worked." said Phineas gladly.

"Yeah. It did." said Isabella with relief.

Phineas later remembered that he had the Emotional Bravery Patch covering the hole of his sleeve. "Oh, here. You've earned this." he said as he took off the patch and hand it over to Isabella.

Isabella stared at the patch for a moment, but later even though she earn it, she doesn't want it anymore. "No, thanks Phineas. You can keep it."

"Wait, really? Why?" asked Phineas confused. "You never missed an opportunity of earning a patch."

"Yeah, I know, but I want you to have it." said Isabella. "Keep it as some sort of memento. I've might been the one to earn it, but you deserve to have it.

"Thanks Isabella." said Phineas delightly.

They hugged each other, knowing that the terrifying night the went though was now over.

"I can see you two are alright." said a familiar voice.

The two looked at the staircase and saw Ferb climbing up. "Ferb!" they cried as they went to hold his hands.

"Are you okay, bro?" asked Phineas.

"Yes. And it appears everyone else is, too." answered Ferb as he looked at the view of the morning city. "Everyone seems to be noticeably pony side effect and rainbow free."

"Yeah, well, at least everyone within the walled city of Danville." chuckled Phineas as he and the others looked at the horizons. It was quite a rough night for them.

But although, it shows the view of Danville surrounded by a wall, which a wave of countless zombie ponies tried to climb up, chanting "COOKIE!" "COOKIE!" over and over, but couldn't despite wall's highness.

"Yeah, too bad about the rest of civilization." said Isabella.

THE END

But not at all. Stacy scoffed as she turns off the TV. "Pfft! Horror movies. Scary, but so unbelievable." she said as she got up from the couch, grabbing her bowl of popcorn and went to her bedroom to get ready to sleep.

The End.

Author's Note

The story ends here, but I'll upload the Alternative Ending and the Bonus Chapter soon. I enjoyed making the development of the story. And more stories will be uploaded soon. So stay tuned.:pinkiehappy::twilightsmile::raritywink::ajsmug::yay::rainbowdetermined2:

Credits to PixarPnLover with his/her story based on the Phineas and Ferb Halloween special: "Night of the Living Pharmacists", Lots of Hell on Wattpad and Fanfiction, and other Fimfiction users that made 28 Pranks Later distantly for the inspired idea of the story.

Act 19 (Alternative Ending)

Meanwhile, in the water tower, Phineas was climbing up to the top of the water tower, later he saw Isabella standing next to the vortex sprayer confused and got closer to her. "Isabella! Are you okay?"

"Yeah. Just a bit foggy." answered Isabella.

"What happened?" asked Phineas.

"Remember building the vortex sprayer once I've put the cure inside the water tower, but later I've got no clue." said Isabella.

"Me neither. But whatever happen, it worked." said Phineas.

"Yeah. It did." said Isabella in relief.

Phineas later remembered that he had the Emotional Bravery Patch covering the hole of his sleeve. "Oh, here. You've earned this." he said as he took off the path and hand it over to Isabella.

Isabella stared at the patch for a moment, but later even thought she earn it, she doesn't want it anymore. "No, thanks Phineas. You can keep it."

Wait, really? Why?" asked Phineas confused. "you never missed an opportunity to earn a patch."

Yeah, I know, but I want you to have it." said Isabella. "Keep it as some sort of memento. I've might been the one to earn it, but you deserve to have it."

"Thanks Isabella." said Phineas delightly.

Phineas later put a smug smile to his face as he looked down, causing Isabella confused. "In fact, to confess this, my memory's a bit clearer..."

"What do you mean?" asked Isabella confused.

"I remember what you said before I got zomb-ponified." said Phineas smugly.

"Uh, hehe, okay, well...You're gonna have to remind me what I said." said Isabella still confused. "Unless it's something really weird and then, maybe..."

Isabella later thought that Phineas was telling something that Isabella doesn't remember, although she thought that maybe it was a bad idea to tell Phineas about this, since they got used to all kinds of things, at exception of this kind of thing. "..I don't wanna know...I just..."

Phineas looked at Isabella hopefully, waiting for an answer, causing the shock of Isabella.

"...oh no..." she said shockly. "...I said something weird, didn't I?"

"Well..." said Phineas as he tried to spoke.

But Isabella was kind of confused and shock at the same time, not knowing what she said to make Phineas act like this. "Look, in my defense, that ordeal was a total nightmare! What I said was probably our of the moment, I-don't' wanna know-"

"You told me that you like me." said Phineas with a handsome face. still remembering the moments she liked her.

Isabella just looked at Phineas shockly when he said that, unknowing that she was panicking for no reason, she was quite embarrassed since she sounded silly on her emotions.

"Now, when I said I liked you, did I mean in the platonic sense, of that I like-like? she asked confused.

Phineas just shook his head slowly and quickly at the same time, still having that handsome look on his face.

"Nuts...Well then..." said Isabella as she later fell down in embarrassment, not know how to react or what to say to Phineas.

"Are you okay?" asked Phineas.

"I no longer fear death." said Isabella.

Phineas ducked and got closer to Isabella to confort her more. "Well, hey, maybe-maybe it was spoken out of the moment like you said. It's okay if-"

"It was...I don't like-like you, Phineas." interrupted Isabella.

"...Oh..." said Phineas quite red cheeked.

"I'm pretty sure I'm like...in love with you...Like deeply. Literally?" asked Isabella as she kneeled down herself more confused. "I've felt this way since the beginning...I mean, I'm not a little girl, I know you don't just...fall in love at first sight. The way I feel had just gotten so intense from the start, and I know it's in the way."

"In the way?" asked Phineas confused "Isabella, why does it have to be bad?"

"It is bad if you don't want it!" shout Isabella as she got up, causing Phineas shocked at Isabella's unexpected and unusual attitude.

Isabella later shed some tears from her embarrassed face what what she said, she was frustrated that she didn't know she was going to far on her emotions. "I'm sorry, I don't know why I'm crying, I- *sniff* I had this all planned out-"

But before Isabella could continue, she takes a deep breath from her nose, and let's it out from her mouth, calming down from crying. "I...am calm..." she said.

Phineas grabbed her hands and consulates her, she never wanted to feel Isabella more embarrassed from the count, he could understand the feel she got from the cookie-zombie pony apocalypse thing.

"Are you okay?" he asked.

Y-yeah...I...I think." answered Isabella. "I'm still getting over the whole turning into a cookie zombie pony thing..."

"Believe me, I know what you mean." said Phineas as he later got red cheeked "Maybe this is a bad time, but...wanna kiss or...something?"

"...yes. Please. Absolutely!" cried Isabella in excitement.

Phineas quickly kissed Isabella in her mouth, feeling the lovely sensation on his inner, Isabella can also feel it too, although, Phineas can also feel the pain on his nose and Isabella can feel the beak pain on her nose too, but they don't mind about it.

Once they stopped kissing, Phineas and Isabella looked each other lovely, knowing that they found their twin soul the whole time, and remembered the moments they passed the whole summer.

"Isabella...I want you to love me because...I love you too." said Phineas lovely.

Isabella smiled in joy as she shed a tear, glad to say that her crush actually loves him, she knew the Fireside Girls were right, he felt the exact same way to Isabella this whole time, she knows that he also thinks she's cute. They hugged each other, knowing that they found love in them, also, knowing that the terrifying situation they went to was now over.

"Oh, Phineas...Guess that says how you fell after all." said Isabella lovely.

"Yes, yes it does. Look at us, being brave for each other and the town." said Phineas lovely.

"Yeah, no kidding." said Isabella.

"I can see you two are alright." said a familiar voice.

The two looked at the staircase and saw Ferb climbing up. "Ferb!" they cried as they went to hold his hands.

"Are you okay, bro?" asked Phineas.

"Yes. And it appears everyone else is, too." answered Ferb as he looked at the view of the morning city. "Everyone seems to be noticeably pony side effect and rainbow free."

"Yeah, it was quite a night for us." said Phineas.

"It was." said Isabella.

The three sat down next to the vortex sprayer and looked at the sunrise, sighing heavily. It had been a rough night for them, but at least they made it. Odd as like it seem, but if it wasn't for the chaos, Isabella would have never told Phineas how she feels from him, neither known how Phineas felt the same the whole summer.

Even though the night on Danville had been a labyrinth, everyone and every pony had lived to see the heavenly morning on the horizons.

THE END

But not at all. Stacy scoffed as she turns of the TV. "Pfft! Horror movies. Scary, but so unbelievable." she said as she got up from the couch, grabbing her bowl of popcorn and went to her bedroom to get ready to sleep.

The End.

Author's Note

Here it is, the alternative ending. Sorry that I didn't upload it for much longer, but you know time kills me, anyways, which ending do you like? This ending or the original ending?

This ending is originally made by Galaxina-the-Magi, here it the link to her deviantart channel if yo wanna go check it out.
https://www.deviantart.com/galaxina-the-magi

Stay tuned for the bonus chapter, and I'm working on another story that will be uploaded in DeviantArt and Fimfiction soon, so stay tuned.:pinkiehappy::twilightsmile::raritywink::ajsmug::yay::rainbowdetermined2:

Act 20 (Bonus)

A/N: You thought that it was over? Well, there's still one more thing.

Meanwhile, at the exit of Doofenshmirtz Evil Inc, The ponies exited the building and went to find everypony from Ponyville, it was quite a night for them, but at least everything went back to normal as they saw the morning on the city.

They looked all around the city, streets, alleyways, buildings, everywhere, and nothing, they were getting quite tired, not only for the walk around, but all for the night they went though.

"Man, I'm quite tired of searching for every pony, where they could be?" asked Rainbow Dash tired.

"Ah don't know, but whatever they are, I hope they're okay and finally turn back to normal." said Applejack also tired.

Just then, they saw from where they were a herd of ponies in the middle of a street, they went closer to them and found everypony standing there in confusion.

"Girls?" asked Twilight as she and the other Ponies asked confused.

"Dashie?" asked Pinkie Pie worried, hoping that Dash isn't angry at her.

"Yes, it's us." said Rarity.

"We've been searchin' for y'all everywhere!" said Applejack tired.

"We're just glad you guys are here with correct minds." said Starlight.

"You mean, we were really infected? Does the cookies Dashie just put were really infected?" asked Fluttershy worried.

"Yes and no, but you'll soon get it when I explain everything." said Starlight, causing every pony confused.

Twilight later realizes that they weren't the only ones, she also noticed something different on Rainbow Dash. "Derpy?"

"Hi." said Derpy as she waved.

"TRIXIE!!!???" asked Twilight angrilly.

"Oh, uh, hello, Sparkle. Tehe..." said TRIXIE quite suprised at her nemesis' reaction.

"What are you doing here? And, why is Dash's mouth...rainbowfied?" asked Twilight confused and angry at the same time, knowing that Pinkie's plan didn't came out as Twilight wanted.

"Yeah, and what it this place we were at? It looks like a...city." asked Spike upset and confused.

"I know you all have a lot of questions, but let me explain it all." said Starlight as she takes a deep breath and exalates. "So, after I leaved Sugar Cube Corner after trying to confort Pinkie of the zombie prank you all were gonna give to Rainbow Dash."

"Wait, you knew about this?" asked Fluttershy shocked.

"Not until Pinkie Pie told me about the prank." said Starlight, causing every pony to look at Pinkie Pie with angriness, not only for the confrontation, but also that Starlight might probably tell Rainbow Dash about the prank right before all this happened.

"What? I just told Starlight that Dashie needed to learn a lesson about pranking, that's all." defended Pinkie Pie.

"But you were missing a point there, Pinkie, will you just let me tell my explanation, you'll soon get it." said Starlight, causing Pinkie Pie stood and listen to the rest. "Anyways, After I left Sugar Cube Corner, I saw everypony practicing for the prank to scare Rainbow Dash, I was quite upset about it, but the next day, the day of cookie sells, when I walked where Twilight and Spike was, I saw them being surrounded by something that humans call it, static."

"WHAT!!!???" yelled every pony in shock, knowing that how it could be posible that they didn't even noticed that.

"So with no other choice, I had to teleport to Trixie's house and tell her about the situation, and she said that she also saw other ponies being surrounded by static, and knew a pony that had never got the cookies for the same reason of my upsetness, and that was Derpy." continued Starlight as she looked at Derpy.

"I told you guys, the prank you guys were gonna pull would end bad, and it's wrong." objected Derpy angrilly.

"And we also saw everypony fainted to the ground when we entered their houses," said Starlight. "the night arrived and we saw Rainbow Dash heading to a portal that were a few inches from Carrousel Boutique, and saw Rarity, Applejack and the CMC's too distracted, so we went into the portal and lead us to this city called: Danville. It was right after you guys were with non-correct minds and entered before me, Trixie and Derpy entered."

Everypony was shocked with no words at Starlight's explication, they admit that they want to scare Rainbow Dash, but they never expected the way that it would all end wrong from the beginning.

"And we saw all of you with mindless minds, biting and scaring humans of this city instead, luckily Derpy found and had a box of joke cookies that was not infected by static, and took a bite and her mouth got rainbowfied, and as for me, well, I saw and read one of Twilight's books and used the spell that Twilight casted for everypony to make their colors dulled to Derpy, and made her mane wrinkled too, like Rarity showed us how" said Starlight, causing the confusion of Twilight and Rarity.

"But three questions, why is that so called 'static' surrounding the boxes? And how didn't we noticed them until now you're telling us? And most importantly, where did it came from?" asked Twilight.

"I'm getting to that part, Twilight." exclam Starlight. "After that, we hide into an alleyway and found Rainbow Dash. So we did the same to her in being like Derpy, the clues I've got where pointing to a certain building called Doofenshmirtz Evil Inc, and we went there and found a man with a lab coat, and explain us that the static came from a beam from his machine called I don't know, something 'Inator'."

"Repulse-inator." reminded Trixie.

"Yeah, Repulse-Inator," said Starlight. "and said that he build it to zap his brother, he's mayor of this city, and a portal that looked like the same portal we entered, opened and headed towards Ponyville instead, and I think it might have zapped the boxes of joke cookies instead, and if I would make an scientific guess, I say that the spell Twilight casted had combined the machine's effects right when you all took a bite out of one cookie."

Everypony with no answer, just hearing what Starlight was saying, it was quite impacting for them, but some of them wanna know how those two portals, Starlight just mentioned did opened from Equestria to Danville.

"We kinda got bothered with him for that, but he said that it was an accident, and he never planned this in the first place, he also said that he knew someone that might help us, and bought an agent platypus named: Perry the Platypus, but although, there was an only time that we saved him, but at the rest he helped us going to Doofenshmirtz Evil Inc." said Starlight. "We found a group of children, followed by two teenage girls, one with orange hair, and the other that was the daughter of the scientist we found, and also, Applejack, Rarity and the CMC's followed them, we found ourself, I told that wrongs never make it right as they confessed that it was supposed to be a prank to scare Rainbow Dash, which she obviously got angry about it, but later we leave that behind and continued on to turn you all back to normal, Rarity had a bottle of cure made by Zecora that can reverse magic effects and mix it with a big pile of water from a water tower humans just build, since we found out that water can neutralize static, and put a vortex sprayer to spray the whole city with cure and water and now we're all back to normal and ended in this spot of the city. That's all."

Everypony we surprised about the story Starlight just told, but later, Applejack stand and later started to explain another thing as she scraches her mane. "And honestly, we first thought that Pinkie's idea to flip the tables on Rainbow Dash seem like a good idea to make Dash to stop prankin' for a while, but later by far we went on investigatin' on the prank goin' wrong, we knew that it would be no good to do that kind of prank to Dash if it actually happened."

"Yeah, it was quite odd to know that, and it will be by what I'm gonna say, but I think this chaos also made us learn a lesson we should all learn, and that is, never try to do things that seem right, because later it will possibly end wrong despite our feelings and intentions, no matter if their low or high." said Rarity determintely.

Everypony that was part of the prank put ashamed faces, they knew that Applejack and Rarity was right, their upsetness was so upset that their hearts never told them that it was wrong what they were doing, and it won't end up good for them if it really actually happen, they don't imagine how Rainbow Dash will feel after that such prank they were gonna pull to her, yes they also know that she prank them too, but making her think that she killed them was gonna be too much for her.

"And by the way, Rainbow Dash also wants to say something about the situation." said Starlight, causing Dash flying towards every pony.

"Guys, whatever you guys were gonna do to 'flip the tables on me' it wasn't no good, but no matter what, I'm just gonna say, I'm sorry, I'm sorry for the pranks that I pulled on you guys, I was going crazy on them that I didn't knew I was going to far." apologized Rainbow Dash.

"I'm glad you learned your lesson." said Fluttershy.

"Yeah." said Twilight. "And we're sorry that we wanted to teach you a lesson in a harmful way, our upsetness was so big that we didn't thought that we were gonna pay a price that we had to pay for the rest of out lifes if this prank happened."

"But we did it because pranks would be so much fun to enjoy, just not try to go far on them, like us for example. I wasn't with them at first, but there was no choice." said Pinkie Pie sadly.

"Can you at least come back to Ponyville? Everythin' won't make sense without you." said Apple Bloom.

"If you do, than will be happy, but if you don't, we'll understand, we respect your decision. You're not forced to come back, I mean, THAT'S your decision." said Twilight.

"Are you kidding?" asked Rainbow Dash. "Of course I'll come back, nothing on Ponyville will make sense if I'm gone."

"YAY!!!" yelled Pinkie Pie joyfully she jumped happy. "I can make a 'Rainbow Dash came back' party to celebrate our-"

"Pinkie! Maybe later, for now, I'm exhausted, in fact, everypony is exhausted too." interrupted Rainbow Dash as Pinkie Pie saw everypony tired.

"Uppsy, sorry, my bad." said Pinkie Pie as she return back to the ground.

"But there's something I don't get," said Twilight confused. "how did those portals Starlight mentioned opened?"

"I think I have something to do with that." said a familiar voice and when it popped out to reveal itself, the ponies were shocked when they saw no pony else but...

"DISCORD!!!???" shout Everypony in shock and anger.

"Discord, what did you do this time?" asked Fluttershy upsetly.

"Oh Fluttershy," said Discord smugly. "I overheard Pinkie's plan to prank Rainbow Dash, I knew that something wrong was gonna go...wrong, so I used some power from a machine that a scientist Starlight mentioned called: Other Dimension-inator, by manipulating the power and mix it with the magic of the mirror portal Twilight used to go to Sunset's world."

"Wait, you were overhearing my story?" asked Starlight angrilly.

"And how did you know about the mirror portal?" asked Twilight angrilly too.

"Oh Twilight, I know a lot of things, and I also went to other worlds too," answered Discord. "even though my chaos magic can't be used for too long."

"WHAT!!!???" shout Everypony in shock.

"It's true, once we tried to use magic, but it didn't last for too long." exclam Rarity.

"Yeah, indeed, magic doesn't exist here, so we can't use it for long." said Starlight.

"Anyways," continued Discord. "I saw the scientist's machine called: 'Repulse-Inator' launching a beam, and the moment it launched, I opened a portal to Ponyville, where the carriage of joke cookies were at, causing the beam to zap the pille of boxes instead, later when I saw everypony turned into 'Mindless Repulsive Cookie-Craving Zombie Ponies' I opened another portal where Dash went to and she also guide all of you ponies to here and, you now know the rest."

"Look Discord, I understand that you were trying to wake us up, and I apreciate that, but why did you do it, I mean, we could gave Dashie a lesson, but you had to ruin it." said Fluttershy upset.

"Yeah, we were gonna broke the sense out of Dash if it wasn't for you." said Twilight.

"Oh, I'm sorry, but there was no other way for you guys to know that, so I had to do what I had to do, I mean, come on, you guys would have resolve it by tell her to just stop it and that's it." said Discord.

"We did tell her." said Twilight.

"True, but you would have turn it into a conversation instead of just lazy oversaying." said Discord, causing Twilight with no word to contradict, she would have thought about that in the begininng.

"Well, at least we all learn a lesson, we learn that never do things that looks right, but can't go right,
use Starlight as an example, and like I said before, a prank isn't very good when you're the only pony laughing." said Twilight. "And it will sound odd if I say this, but if it wasn't for Discord who ruined the prank, this lesson would have never been teached to us."

Everypony agreed on Twilight's words.

"And Rainbow, now seeing you mouth rainbowfied, I think it quite funny to see that." said Fluttershy as she giggled.

"Yeah, it was." said Rainbow Dash.

Everypony laughed, learning two lessons, Rainbow Dash learned to not to go far on pranks, while the ponies learned that wrongs don't make it right.

"Well, we all laughed at Rainbow's prank after all." said Starlight.

"Yeah indeed." said Twilight.

"You finally put effort on your prank now Dash." said Rarity.

"And this time, it wasn't lazy, hehe." said Applejack.

"Thanks. And that's why they call me and Pinkie, the prank masters, right Pinkie?" asked Rainbow Dash.

"Yup, we definitly are." chuckled Pinkie Pie.

"Now with that, we have a note to send to Princess Celestia about the lesson and how we ended here, Discord, would you?" asked Twilight as she looked at Discord smiling.

"Of course." said Discord as he snapped his fingers to open another portal to Equestria.

The portal opened and Everypony went into the portal and it's was morning time in Ponyville, like in Danville, they all head to their homes and all got a good rest, it had been a night of them, but al least everything went back to normal.

The End.

Author's Note

With that, the story is complete, I enjoyed making the devolupment of the story. Stay tuned for my next story called: 28 Crumbs Later

Credit to PixarPnLover on Wattpad and Fanfiction on his/her version of Phineas and Ferb: Night of the Living Pharmacists and other autors on Fimfiction that made 28 Pranks Later in a different way that the original for the inspiration of this story.

Thank you and stay tuned. :twilightsmile::pinkiesmile::yay::rainbowdetermined2::raritywink::ajsmug:

Act 1

Sorry, I wanted to put this intro, it's just so amazing. I just want to say that this story takes the events of the episodes 28 Pranks Later and Night of the Living Pharmacists, just it will be combined with some mixtures to the add to make the story interesting, I hope you guys enjoy it.

It was a normal afternoon on Danville, someone was walking to a house's wood fence, opened the wood fences' door and said person saw 2 boys working on something, as the person entered, the boy with orange strapped T-shirt notice the person entering and gasped to the situation, however, it wasn't what he thought, it was a girl with a pink bow entering the boys' backyard to see what were they doing.

"Whatcha' doin'?" Said the pink bowed girl

"Oh, Hi Isabella." Said the boy mentioning her name. "We were just building a new polymer de-stablizer for the buliding catalyst of the--"

"That's great Phineas." She inturpurted. "Listen, uh, there's something I wanna tell you."

"Okay." Said Phineas with curiousity.

Later she pulled from her dress bag a patch and show it to Phineas. "Uh, it's about this patch."

"Oh, it's one of your accomplishment patches." Said Phineas

"Well, yeah," Said Isabella a but nervous. "but it's an Emotional Bravery patch that I can only earn by walking to somebody I--"

But Later, Ferb interrups clearing his throat, being a new power supply.

"Nice, Ferb! You found the new power supply!" Said Phineas delighted.

Isabella keep talling about she was tell Phineas about "Um, Phineas? I, uh..."

But again, Isabella was interruped again by Buford and Baljeet arriving.

"Hey, what's shakin' bacon?" Said Buford

"You do realize that bacon does not shake?" Asked Baljeet.

"Sir Francis Bacon?" Asked Buford.

Baljeet couldn't complain about what Buford said to him. "I stand corrected."

"We're building a rubberization ray to give our skin rubber-like qualities." Announced Phineas to the others. "Come on, we'll show you."

And Phineas and Ferb take Buford and Baljeet to the project they were building, but Isabella was upset for being interruped and couldn't tell Phineas how she feels for him.

Isabella sighs of a while quite upset. "So you see, Phineas, I can only earn the patch by walking up to someone I care about and telling them face-to-face that I've got a huge crush on you."

And Isabella walks over to see the boys' project, not amused.

"Remember how much fun it was to bounce around the world on a rubber ball?" Asked Phineas reminding them of that.

"If not a bit nauseating." Said Baljeet still remembering.

"That was the fun part." Chuckled Buford.

"So, how awsome would it be to actually be a rubber ball?" Asked Phineas.

"I'm in!" Said Buford with excitment. "Can we shoot Perry with it, and bounce him around the backyard like a plat-a-ball?"

"Um, no." Phineas answers as he was looking around that Perry, their plytapus wasn't here anymore. "But, where is Perry?

Agent P hides and puts on his hat and enters into an air conditioning to his secret base and came with a snow coat and takes it off.

"Ah, Agent P, I see you found the new central air conditioning entrance." Said Mayor Monogram in a tub.

Agent P Chatters asking him about the hot tub he was in.

"What? Oh, the hot tub?" Said Mayor Monogram."Purely therapeutic. The bubbles works wonders on a bad back ..........Carl!"

At O.W.C.A, Carl was a bit dizzy about breating into a hot tub's tube and making bubbles and the water hot and warm. "I'm a little light-headed sir. Can I take a break?" He asked gasping.

"What am I not paying you for?" Asked Mayor Monogram angrilly.

Carl couldn't complain about that he said, so he had no other choice to continue on. "Yes sir." He said as he takes a deep breth and sputtles into the tube to make more bubbles.

Mayor Monogram continues on with Agent P's mission. "Anyhoo, today is the unveiling of Danville's water tower." He said as a picture of the water tower shows next to him. "Mayor Doofenshmirtz is going to be dedicating it tonight at his press conference." He said as another picture of Mayor Doofenshmirtz shows. "We're fairly certain that Doof will attempt to disrupt the event in some way." Later it shows that the water tower is right a few feet to Doofenshmirtz Evil Inc. "Not only is it high profile, but since it's right next door to Doofenshmirtz Evil Incorporated, it's also extremely convenient. So get out there and stop him from doing whatever is he's gonna..."

Agent P leaves to complete his mission as in O.W.C.A, Carl was very dizzy that couldn't keep continuing to make more bubbles.

"Carl! Bubbles!" said Mayor Monogram angrilly.

"Yes sir..." said Carl as he faints.

Mayor Monogram couldn't complain about Carl's dizziness from that hard work he made. "Fine. you've got five minutes."

Meanwhile in a place in another universe, in a magical land called: Equestria, in a beautiful castle in a town called: Ponyville, there were six colorful ponies that were talking each other about something that happened.

"I mean, how could you not appreciate that?" Asked the rainbow maned pegasus.

The yellow pegasus was angry of her of something that happen yesterday night. "Because I don't think that being scared is very fun!" She said angrilly.

But the pink earth pony knows that was fun for her due to she represents the element of laughter. "I do" she objected. "Your heart gets all prisy, your hoofs get all ticklely, your mouth gets all dragy," later turns her mouth back to normal and thought that wasn't good after all. "Actually, I don't like that part, but the rest is great!"

"See? Everypony likes a good prank," she defened the rainbow maned pegasus. "they're just jokes."

"But now Rainbow Dash," argumented the marshmallow unicorn. "I don't think Fluttershy would have called us over here to talk about this if she thought it was funny. Everypony has things the like and things they don't."

"And scarin' Fluttershy is just lazy!" Said the Apple cowgirl earth pony slaping her hoof on the equestrian map.

"Uh, LAZY!?" Said Rainbow Dash shocked.

A prank isn't very good if you're the only pony laughing." Said the purple alicorn."

"But what if it's really, really, really, really, really funny!?" Complained Pinkie Pie.

"And I can do funny!" Presumed Rainbow Dash.

"I know you can." Said Twilight. "I guess your trick is making sure that your idea funny matches the pony you're pranking, that way-"

But as soon Twilight sat on her throne, a whoopee cushion sounds as she use her magic to remove it, causing Rainbow Dash and Pinkie Pie holding for their laughs, as the others were not amused.

Pinkie Pie used her Pinkie sense to laugh with Rainbow Dash. "HAHAHAHAHAHAHAHAHAHAHAHAHA!!!!" "Good one Rainbow!" said Pinkie Pie as she continues laughing with Rainbow Dash. "You have to admit! That was funny!"

"Not really." Said Twilight unamused as she was moving the whoppee cushion from the throne with her magic.

"Yeah, a whoppee cushion is like a joke shortcut." Said Applejack.

"WHAT!?" Said Rainbow Dash and Pinkie Pie in shocked.

"Honestly Rainbow Dash," said Rarity as Rainbow Dash and Pinkie Pie looked at her. "if you are not willing to put effort required to pull a prank that everypony can enjoy, you may not pull one at all!"

Rainbow Dash and Pinkie Pie looked at each other and Rainbow Dash had enough of they're arguments about her pranking. "FINE! If you ponies want effort? Then that's just what you'll get!"

And Rainbow Dash flys away from the castle to put effort on her next prank.

"I'm not sure she understood what we mean't." Said Twilight.

Meanwhile, back at Danville, in a Super Duper Mega Super Store. A orange haired girl was looking at some magazines while talking to her best friend on her phone.

"Oh, Stacy! The new issue of Blase Teen is out." She said while looking at the magazines. "You should see the models in these spreades. So indiffrerent. So uninterested. So cool! I wonder if you and I will ever be this cool. What are you doing Stacy?"

At Stacy's house, Stacy was in her living room plugging a DVD system to her TV, having a bit of complications with it. "I'm trying to hook up this new super-hi-def, multi-format, home entertainment DVR system. I wanna keep the DVD and the VCR, but I don't think there are enough holes. I mean, there's also a pretty serious clicker situation." She said while she looks at various unworkable remotes.

"Well, I'm no help for you there." Said Candace sadly. "Talk to you later Stacy. Good luck." And ends the phone call as she looks again at the magazine on her hands and sighs. "I wish I knew a girl like this so that I can hang out and absorb her coolness."

When Candace stopped looking at the magazine, a girl with a black outfit shows in front of Candace's eyes and gasped. "Vanessa! Hey, Vanessa! Vanessa! Hey! HEY!"

"Oh, hey Candace." Said Vanessa.

"So, uh, doing some shopping?" She asked by later looking at the bag. "I mean duh, of course you're shopping. You've got the items in that basket thingie. You've placed them in ther with the intent to...Stop Candace."

"Yeah. I'm just buying some snacks." Said Vanessa as she shows the bag to Candace. "Some girls are coming over later for a movie night. Should be cool."

Candace got excited about that for a moment. "Wow! That sound incredibly, awsomely...Yeah cool. Whatevs."

"You wanna come?" Asked Vanessa.

"You know, let me just call my mom. Said Candace. "I told her I'd get those squirrels out of the..."

But Vanessa walks away, thinking that Candace isn't coming after all. But Candace saw Vanessa walking away, so she had to go with her. "Oh, oh, we're going now."

To be continued.

Author's Note

This is a crossover story between 28 pranks later with Phineas and Ferb: Night of the Living Pharmacists. I called it: Phineas and Ferb: Night of the Zombie Ponies. I upload five parts on my Deviantart channel. But I'm practacly knowed as "TheSuperhero2109" on Deviantart.

Here's a little resume to the story:

When Rainbow Dash's pranking get out of hand, the other ponies decide to give her a taste of her own medicine. However, Doofenshmirtz's latest "-inator" accidentally turns the ponies of Ponyville into contagious mindless repulsive cookie-craving zombie ponies who run rampant all over Danville thanks to a portal that opened by itself. Phineas, Ferb, Perry and the gang must work together to save Ponyville and Danville and avoid becoming mindless repulsive cookie-craving zombie ponies themselves.

Act 8

Meanwhile, in Doofenshmirtz Evil Inc, Doofenshmirtz was sitting on his couch with only one cushion, holding a bowl of buttered popcorn, watching TV, also, he made the TV over to where Agent P was trapped so he could also see the TV.

Clearly Agent P wasn't happy for various reasons. Not only he failed on stopping Doofenshmirtz, but now he's trapped and unable to stop what Doofenshmirtz has planned to do and his further chaos he made.

"Good evening, I'm Gordon Gutsofanemu with a special report." said the news reporter on the TV while next to him, it shows the chaos in the city. "The Tri-State Area is on chaos tonight as thousands of repulsive mindless cookie-craving zombie ponies run rampant all over Danville."

Doofenshmirtz rolled his eyes, not amused, since he heard that news a billions of times. "Oh, there they go with the whole 'cookie-craving zombie pony' thing again! I should become one, that would show 'em! I should become a cookie-eating zombie pony!"

"We now go live on the scene with our own action news reporter, Don Adaded. Don?" Said the news reporter as it shows the action news reporter next to him.

The camera cuts to the action news reporter in the middle of the street, surrounded by a disastrous scene of zombie ponies and terrified citizens. "Thanks Gordon, I'm in downtown Danville." said Don to the microphone. "It's a unbelievable scene. Cookie-craving zombie ponies biting people who turn into cookie-craving zombie ponies."

"Ah, here's one of them now." Said Don as Zombie Pony Mrs. Cake aproveched to him. "Mr. or Mrs. Mindless Repulsive Cookie-Craving Zombie Pony, care to comment?"

"COOKIE!!!" groan the zombie pony as it bit Don's left arm. Don ignores the static around him and continued talking to the mic. "And there you have it folks, I-"

But the static soon transformed him into a zombie pony as well. "cooKIE!!!!"

The zombie ponies were getting closer to the cameraman to ponify him as the camera cuts back to a frightened and nervous Gordon, witnessing the scene.

"Uh...Th-Thanks uh, Don?" spoke Gordon nervously. "Uh, let's go to the weather!"

But unfortunately, the weatherman had been turned into a zombie pony. "COOKIE!!! Let's go to traffic!"

The camera cuts to the helicopter, but both pilots have been turned into zombie ponies as well, although, the pilot driving was wearing sunglasses despite the darkness.

"COOKIE!!!" groan the female zombie pony co-pilot.

"Back to you Gordon!" said the male zombie pony pilot with sunglasses.

And finally back to Gordon, who was now a zombie pony too. "COOKIE!!!"

Doofenshmirtz stood up out of his seat, dropping the bowl of popcorn. "I-I don't believe this! An entire army of minions! I finally have minions! HAHAHAHA!"

Doofenshmirtz went to an elevator as he thought that maybe the portal it opened striked the inator's beam to some boxes of cookies with a rainbow cream in them since they he noticed the rainbow cream in their mouths and uttering 'cookie' over and over again. And meaning to him that this was his plan all along. He could use those zombie ponies to his advantage.

"Oh! For once, I'll actually be able to take over the Tri-State Area, because I'll have, you know, the volume." said Doofensmirtz delightly.

Agent P pressed his paws as he glared at him angrily, meaning to him that he'll soon get out and make Doofenshmirtz pay for it.

"Ciao, baby!" said Doofenshmirtz as the elevator doors we're closing.

Once he exited the building, he began to walk joyfully around the streets of Danville, laughing triumphantly and seeing that his evil schemes have actually and finally worked. Well, sort of, but he doesn't care. "I can't believe it, I'm becoming more knowledged up close! Well aside of the lab coat I wear, but otherwise, I can finally take over with an entire army! C'mon my fellow zombie pony minions!" He announced to a wave a zombie ponies. "We're talking a little trip!"

A group of zombie ponies transformed and from Ponyville followed him, although they were slower than him, and also, they know that he was the one who created them for some reason, and they have no interest to turning him into one of them, since he was immune to the sickness and they wanted a leader that will guide them all along, eventfully.

Doofenshmirtz and his army of zombie ponies have finally arrived to their destination. "Bingo! City Hall! The first step of my conquest of the Tri-State Area! No longer I'll be made fun by the small children and their silly jokes and pranks that mock me! Like, 'Knock, Knock!' 'Who's there?' 'Doofus in a lab coat!' 'Doofus in a lab coat who?' And then they hold up a mirror. That's not even my punchline! It's just, ugh, nevermind." he said. "They will soon learn to fear the name of Dr. Heinz Doofens-"

But before he could continue or finish with his evil line, he looked back and saw that his army of zombie ponies walked away in the other direction. "Hey! Come back here! You guys are my minions!" he said as he started chasing them.

Meanwhile, the boys were bouncing relentlessly to the neighborhood, slowly begin to bounce lower and lower. "Hurry! We're losing our bounce!" warned Phineas.

They were able to make it safely to the backyard with our being ponified, but only to see that one of the zombie ponies had destroyed the rubberization ray.

"Oh no, the zombie ponies trashed the machine!" cried Baljeet as he gasped and walked over to it.
"Can we rebuild it?"

"We can try." said Phineas as he picked up some destroyed parts. "But we should do it inside. There's too many cookie-craving zombie ponies out here. Our rubberization is fading fast."

Buford attempted to bounce again, but only to fall flat on his face. "I DIDN'T BOUNCE! AHHHH!!!" he cried as stood up and darted inside the house.

Phineas, Ferb and Baljeet quickly grabbed some parts of the machine and dragged them inside, closing the door behind them.

"Okay, we gotta get started on another rubberization ray." requested Phineas.

Buford was still running in circles, still scouting in panic like a madman. The boys knew that they'd never be able to get anything done until Buford got his senses together. "Right after we calm down Buford." said Phineas as he, Ferb and Baljeet ran over to calm him down.

Meanwhile, Rainbow Dash was flying all over the streets of the city, she doesn't mind of where she was, she only wanted to hide safely from the zombie ponies. She went to an alleyway hide to the left leaned behind a building's back wall.

She calmed herself down and tries to process the situation that she 'caused'. "Okay, so what I have done was turning everypony into mindless cookie-eating zombies and bringing them into this place and started biting other living beings and turned into out pony species with the muzzle on their mouths and their colors dulled. And that thing surrounding it might have been the cause, but how did it got into the joke cookies?"

Later, Rainbow Dash had a terrifying feeling that might be true. "Oh no! What if Scoots has turned into one?"

But before Rainbow Dash could continue, she looked on her right and then...

"Hello."

Rainbow Dash screamed a little after seeing Derpy Hooves as a zombie pony, but her derp eyes we're normal and she wasn't uttering 'cookie' over and over again, but talked in her normal voice. Rainbow Dash was confused after seeing this. "Derpy?" she asked. "Why haven't you turned into one. I mean, your colors are dulled, your mane is wrinkled and your mouth's a bit...rainbowfied, but why are you not one of them?"

"Oh, It's a long story, Dash." answered Derpy. "But I came here because you were in danger and I had to wear this funny muzzle on my mouth and be like this so that they won't identify me."

"Oh, I see. heh heh." said Rainbow Dash as she chuckled after she heard the word 'funny'. "I see you like my prank, not like others who thinks that she doesn't longer find it funny."

Derpy later she got a box of joke cookies that had no static surrounding it. "Here, have a cookie from this box that is not infected."

Derpy puts a joke cookie to Rainbow Dash's mouth, which was rainbowfied right after it happened.

"Hehe, Thanks Derpy." chuckled Rainbow Dash as she ate the cookie. "But why are your colors dulled?"

"We have something to do with that." said a familiar voice, and it revealed itself as Starlight and Trixie, who had their colors and manes normal and no muzzles in their mouths.

"Starlight? Trixie? Have you guys used your magic to make her colors dulled?" asked Rainbow Dash confused.

"Of course." said Trixie. "Starlight told me about the situation and decided to called Derpy because she knows and saw what happened when she saw everypony turned into cookie zombies and entered into that portal that bought us here. But we saw you entering here first."

"Hmm..." think Rainbow Dash and later, an idea got into her mind. "Hey Starlight by the way, can you make my colors dulled too?"

"Sure." said Starlight. "Good thing I've learned that from one of Twilight's books."

Starlight got her horn to use her magic and to make Rainbow's colors dulled and it worked.

"Cool!" said Rainbow Dash as she looked at herself.

"Oh, one more thing." said Derpy as she started wrinkling Rainbow's mane by moving her hooves from left to right. "Ta-Da! she cried.

"Wow, cool!" said Rainbow Dash as she looked up her mane wrinkled. "Now I look like them."

Derpy know that there was one more thing to make Rainbow Dash like one of the zombie ponies to go on their journey. "Now let's practice on your moaning so that they won't suspect anything." she said.

"Ok. Gimme what you got!" said Rainbow Dash.

"First step: Shunk your eyes, you can make them derp if you want." said Derpy as Rainbow Dash shunks her eyes with ease.

"Second step: moan 'cookie' over and over again in a raspy voice, like this: 'COOOKIEEEEE!!!'" said Derpy as Rainbow Dash got surprised after that.

"cookieeee..." moan Rainbow Dash lowly.

"Louder!" cried Derpy.

"Coookieee!" moan Rainbow Dash as she elevated her voice up.

"MORE LOUDER!" yelled Derpy.

"COOOKIEEEE!!!!" moan Rainbow Dash as she really sounded like a zombie pony.

"Thaaaat's the spirit Dash, now you're ready to be one of them." said Derpy delightly and surprised at the same time.

Rainbow Dash had lost her fear of the zombie ponies and got excited about it. "Oh my gosh! I did it! WOO HOO!"

"Okay, Rainbow Dash, calm down a little." said Derpy as she doesn't want to be heard by the zombie ponies.

"Oh, yeah, sorry about that, hehe..." said Rainbow Dash. "Now what?"

"The first thing we're gonna do is that we will go to that building to see what might be the cause to all of this." explain Starlight. "I've been analizing the progress and I think there's something that might have to answer my question."

"And what building are you talking about?" asked Trixie confused.

Starlight pointed to certain building and it was Doofenshmirtz Evil Inc.

"Oh, ok. Weird building by the way." said Trixie.

"But, how are we going to get there if you guys are not like them and Derpy and I are?" asked Rainbow Dash worried for losing another friend.

"Trixie and I will reduce our sizes and ride on you guys so that they won't notice our presence." answered Starlight as she and Trixie used their magic to reduce their sizes, causing Rainbow Dash to grab Starlight and Derpy to grab Trixie and put them in their wrinkled manes.

"Okay, so let's go!" cried Starlight.

Rainbow Dash and Derpy got put of the alleyway and stop a little. "Are you ready Crash?" asked Derpy calling out her nickname.

"I'm ready Derpinator!" answered Rainbow Dash while she chuckled.

"Good, let's go to it!" cried Derpy.

Both pegasi went and act like zombie ponies off to their destination, they just hope they would find something to Doofenshmirtz Evil Inc.

Meanwhile, everyone in Danville is in panic of the zombie ponies, but on the other hand, Stacy was in her living room, still reconfiguring her TV set, she made a click on the power botton from her controler and it worked.

"Yes!" she cried delightly. "Next step: Popcorn!"

She walked over to the kitchen and popped some microwavable popcorn, ignoring the news report on the TV, which it was just a zombie pony mumbling "cookie! cookie!" over and over again. By the time Stacy was finished, she changed the TV to the DVD option screen right before she could even see the zombie pony.

She sat in her couch, stuffing her face with the fresh popcorn. "And so begins, The Grievance Lady movie marathon. Special edition box set. Oh yeah!" she cried delightly.

But while that, behind her window shows some terrified citizens running away and screaming from a wave of zombie ponies. She didn't even turned around while still focusing on the movie. "'Hey, Stacy, did ya' hook up that while system by yourself?' 'Yeah, no biggie. Do it all the time.' Heh heh. I rule." She said delightly.

To be continued.

Act 17

After almost for 20 or more minutes when they were building, the zombie ponies in the lair were beginning to regain consciousness. "COOKIE!!! COOKIE!!!" they groan.
"Uh, fellas, I think you might wanna hurry up." warned Doofenshmirtz.

"Yeah, I think they noticed that Derpy and I are not one of them." warned Rainbow Dash.

The vortex sprayer wasn't finish yet, they had to tight a few more screws and think of a plan of how to get to the water tower and reverse the sickness.

"You guys hold 'em off! And don't forget to rubber up!" cried Phineas.

Candace, Vanessa and the mares (except Dash and Derpy) put on some rubber gloves from some boxes and grabbed toilet plungers, intending to use them as weapons. Applejack gestered to the CMC'S that they went behind them. They stood in front of the balcony in fighting stances, preparing to protect the kids, filles and the machines.

Doofenshmirtz on the other hand, stood in a karate stance, yelling while wearing gloves on his hands and head. "YAAAAII!!! WUAAAAA!!!"

"Dad, why are you wearing that? Aren't you immune?" asked Vanessa.

"Well, everyone else was dressing up!" defended Doofenshmirtz.

The zombie ponies began to approach the group slowly, but they weren't too far. Phineas tightened one last screw. "That's it! Everything is build!" he cried. "Now let's go with the plan."

He pulled out a scale model between the water tower and Doofenshmirtz Evil Inc they built and he began to explain the plan. "One: Ferb shoots a grapping hook, which attaches to the service platform of the water tower. Two: We send the vortex sprayer up the line. Three: We all ride up in the basket lift. Four: Once we reach the tower, I'll climb up the top of the tank-"

"Talk faster!" cried Candace as she and the others we're smacking the zombie ponies with the plungers they have to fade them away.

"-and open the hatch." continued Phineas as he noded his head. "Five: Later I'll put the cure inside the water tower and mix it with this giant 20 feet spoon I've build, I'll mix it and mix it well-"

"Phineas! We can't hold them much longer!" cried Vanessa.

"-until it dissolves." continued Phineas. "Six: Later once with the cure mixed with the water, Isabella will attach the connecting claw to open the hatch, which will move the vortex sprayer into place."

"Darling, I hate to say this, but can you please hurry up?" asked Rarity despertated.

"Yeah, there's too many of them!" warned Applejack.

"And we can't stop them for too long!" warned Starlight.

"Whoever reaches to the vortex sprayer first presses that button to activite it!" Finished Phineas as Ferb opens the button door. "Alright, any questions?"

"Yeah, it was worth the time it took to build the scale model and the giant spoon?" asked Candace confused.

"Totally!" answered Phineas. "Anyone else?" Later he saw something else "Uh, yeah, you in the back?"

But that something revealed itself as zombie pony Granny Smith in the back.

"Hurry up guys!" cried Vanessa as she smack the zombie pony with the plunger.

Ferb stood at the ledge and fired a grapping hook all the way across to the water tower, latching into the letter 'V'.

"Great shot, Ferb!" said Vanessa delightly.

But Candace noticed that Vanessa was distracted as a zombie pony had snuck up to her. "Vanessa, behind you!"

Candace rushed and pushed Vanessa out of the way, but when she did, the zombie pony had bitten Candace instead, causing static to surround her. "Oh, crud, cookie....."

"Candace!" yelled Phineas in shock.

And finally, the static soon transformed her into a zombie pony. "COOKIE!!!" it groan.

"NO!" yelled Phineas.

"Come on guys! We gotta go!" cried Isabella.

Isabella, Ferb and reluctantly Phineas climbed to the bucket. Rainbow Dash was flying with Derpy, and saw that Rarity and Applejack were fighting the zombie ponies, she wanted to help, but later she saw that Starlight and Trixie rushed into the bucket with the rest. The CMC'S on the other hand just stood there, they didn't know if they want to save their sisters or continue on.

"Rainbow! You and Derpy gotta take the filies with ya'!" cried Applejack.

"What? There's no way I'm gonna leave you guys there!" objected Rainbow Dash.

"Rainbow, if you don't do that, we are all gonna turn into one of them!" cried Rarity. "So you gotta keep going on with the CMC'S!"

"But, what about you guys?" asked Rainbow Dash.

"We'll stay here and correct our mistake, this is your perfect opportunity to correct yours too!" cried Applejack. "Just keep going with the rest, that's the only way to bring everypony back. We save Equestria a lot of times, and this won't be an exception, only Ponyville this time! So do this, for Ponyville! For Equestria!"

Rainbow Dash was a bit worried about it, but she knew that Applejack and Rarity were right, the only way to get everypony back is to keep going on. "You're right! I'll bring you guys back, I promise!" she said. "Come on Derpy, lets hold the CMC'S to the bucket."

"Okay, Dash." said Derpy as she and Dash grabbed the filies and put them into the bucket.

"What's goin' on? Applejack is gonna turn into one of them!" cried Apple Bloom.

"So does Rarity!" cried Sweetie Belle.

"I know it said to see that, but I'll put you girls to safety, and the only way to bring them back is continuing on." said Rainbow Dash.

The group later pulled the bucket on the line, already sent the vortex sprayer a moment ago.

"Hurry!" cried Phineas as he made the bucket fade away from the zombie ponies.

Applejack and Rarity noticed that they were surrounded by zombie ponies , but the refuse to give up, they still had to fight there alive, no matter what they do.

"Watch out Rarity, they could attack us a t any moment now." said Applejack focused.

"Yeah." said Rarity. I got a bad feeling that we will be-"

But before she could continue, a zombie pony snuck up behind Rarity and bite her, causing Rarity to scream and groan as static was surrounding her.

"Rarity!" screamed Applejack as she gasped.

Static was surrounding the fashionista and made her collapsed to the ground and fainted as static keep surrounding her. By the time she got up, she was now wearing a rainbow muzzle on her mouth!

"THEY ALREADY TURN ME INTO ONE!!!" groan the zombie pony fashionista.

"NO!" cried Applejack terrified.

But by her bad luck, another zombie pony snuck up behind Applejack and bit her, causing static to surround her cowmare body and collapsed to the ground and fainted as static keeped surrounding her. Applejack got up, but she was now one of the zombie ponies, now both mares we're paying their mistake.

"LOOKS LIKE THIS PRANK GOT BACKFIRED WRONG!!!" groan the zombie pony cowmare.

Meanwhile, Doofenshmirtz and Vanessa were aware of the zombie ponies that started to walk over to the balcony.

"Oh, man, what I wouldn't give for that kind of single-minded focus." said Doofenshmirtz as he looked at the wrecked chopper. "Hey, what's that over there?"

While the zombie ponies were getting closer to the balcony, Agent P had regained consciousness again. He slowly was climbing up put of the chopper, but he was anaware of the danger outside. Zombie pony Twilight quickly bit Agent P's fingers as he latch onto the door. Agent P feel backwards outo the other door, static surrounding his body. Doofenshmirtz gasped as he watched his nemesis wearing a rainbow muzzle on his beak.

"GRR! GRR! COOKIE!!!" chattered the cookie zombie platypus.

"NO! NOT PERRY THE PLATYPUS!!!" cried Doofenshmirtz.

"There's too many of them!" cried Vanessa as she noticed that she and her dad were surrounded by zombie ponies. "Dad!?"

But unaware to her, zombie pony Applejack was behind Vanessa and bit her as static started to surround her, causing Doofenshmirtz to turn around and see his daughter being surrounded by static. "NO! NOT VANESSA!!!"

Vanessa transformed a little slowly than others had. "Ugh, UGGGGG!!!" The zombie pony she transformed seemed a bit confused than anything. "Co-Cookie...?" it groan.

Doofenshmirtz bit his lip, holding back his tears that threatened to fall. Agent P and Vanessa were gone now. His little girl and his little nemesis. Agent P and Vanessa both meant the whole world to him, and now it makes him fell sad that they were now mindless repulsive cookie-craving zombie ponies. And the sad truth was it was all his fault for ruining Ponyville's zombie prank to scare Rainbow Dash.

"NO!!!" he yelled angrily.

Phineas, Ferb, Isabella, Starlight, Trixie, the CMC'S, Rainbow Dash, Derpy (who both Dash and Derpy were flying) looked back and saw what Doofenshmirtz was doing. He started to remove his gloves from his hands and head angrily.

"That's it! THAT'S IT!! THAT'S IT!!!" cried Doofenshmirtz angrily as he was taking off his lab coat, t-shirt, pants and shoes, until he was exposed, only having his underwear on, he didn't care if he was immune or not, he just letted his anger out for losing his daughter and nemesis. "I had enough of you minions! Alright you freaks! FRESH MEAT!!! YIPPE-KI-YAY YA COOKIE-CRAVING ZOMBIE PONY FREAKS!!!" YIPPE-KI-YAY!!!!"

The group just looked at Doofenshmirtz running rampanting around, doing the same thing as Buford did a moment ago.

"Again, with the clothes?" asked Phineas.

"I know. What's that all about?" said Isabella.

"THIS IS YET ANOTHER CALL BACK TO SOMETHING I DIDN'T HEAR!!!" yelled Doofenshmirtz as he exited the lab.

Isabella looked down, only to see the numerous of zombie ponies getting closer to the water tower. "Wow! Look at that!" she said. "We may be the only ones left."

Then seven fliched after seeing the bucket begin to sway away back and forth. They turned around to the balcony, seeing the zombie ponies climbing onto the rope, weighing it down.

"Oh no! The line's breaking!" said Isabella, seeing that the rope wasn't holding the new weight so well. "We're not gonna make it!"

"We have to! If we don't make it, Danville falls!" cried Phineas.

The vortex sprayer had reached the end of the line, landing on top of the water tower just in time, but the bucket wasn't lucky, since the rope snapped immediately in half. Phineas, Isabella, Starlight, Trixie and the CMC'S screamed as the started to fall. But Ferb, Rainbow Dash and Derpy acted quickly and Ferb steered the bucket, while Rainbow Dash and Derpy got the bucket from the bottom, only not to resist the weight and ended fall into the direction of the water tower's stairway.

The zombie ponies noticed the group in the stairway, they went after them to pass their sickness to them before they could reach to the top of the water tower.

The group were standing up as fast as they could, they knew time was running out and they couldn't just stand there and play around.

"Is everyone alright?" asked Phineas.

"I'm good!" answered Isabella.

"Ah'm okay!" answered Apple Bloom.

"I'm fine!" answered Sweetie Belle.

"I'm alright!" answered Scootaloo.

"I am!" answered Starlight.

"Trixie's fine!" answered Trixie.

And there's the vortex sprayer!" annouced Phineas as he pointed to the vortex sprayer on top of the tower. "C'mon, let's go!"

To be continued.