The Dark Side of the Rainbow

by SonicThePony

Rating: teen
Tags: Scootaloo, Main 6, Original Character, My Little Pony: Friendship is Magic, Dark
Length: 3320

Twilight Sparkle found a new spell but didn't know who to test it on. She asked Rainbow Dash if she could test the spell on her. Rainbow agrees. However, Twilight accidentally does the spell wrong and bad things start to happen.

Twilight Sparkle found a new spell but didn't know who to test it on. She asked Rainbow Dash if she could test the spell on her. Rainbow agrees. However, Twilight accidentally does the spell wrong and bad things start to happen.

This picture is the best I could find to match the story.

I'm afraid this story might be worse than my first one...

Published 2014-07-13 15:20:02 UTC
Last updated 2014-07-13 15:20:02 UTC

1 - The Spell

Twilight was in her room reading one of her books, like she always does. She was reading a spell book to try out some new spells. Challenging spells. After five more minute of flipping through the pages, she finally found one that seemed challenging.

"Yes!" Twilight mumbled. "Spike! You wanna try out this spell I fo-" She stopped in mid-sentence when she just remembered that Spike was gone for a while. He said it was 'Dragon Business.' But Twilight didn't buy it. She knows it's so that he won't have to be tested on. "Maybe Rainbow Dash would like to try it out," she said.

She went to the phone and dialed Rainbow's number. The phone started ringing. After about three more rings, Rainbow picked up the phone.

"Hello?" Wait. This isn't Rainbow Dash.

"Uh, hello? Who is this?" Twilight said.

"It's Scootaloo," said the voice on the other line.

"Oh, hey, Scootaloo! You sound different on the phone. Listen, I need to talk to your sister real quick."

"She's out clearing the skies right now," Scootaloo said. "I'll tell her you called, okay?"

"When will she be back?"

"She said at around 4:30 I think."

Twilight looked at the clock, which read 3:47, then said, "Okay. See you later, Scootaloo."

"Bye," Scootaloo said. They both then hung up.
**********

About forty minutes later, there was a knock at the door. Twilight answered it and what stood there was the cyan-colored, rainbow-maned Pegasus, Rainbow Dash.

"Hey, Rainbow." Twilight moved over so Rainbow can come in.

"Hey, Twilight," Rainbow said. "Scootaloo said you wanted to talk to me."

"Yeah," Twilight said. "I found this spell in my spell book. I was gonna do it on Spike but he's not here right now. I was thinking maybe I could do it on you."

"That depends. What does the spell do?"

"It's a Disarming Spell. It disarms ponies. Let's say if somepony came in with a knife, I could use the spell to make the knife fly out of his hoof."

"Okay. So where's something I could use so you can make it fly out of my hoof?"

"Right." Twilight went upstairs. A minute later, she came back down, levitating a butter knife with her magic. She gave it to Rainbow.

"Really?" Rainbow said. "You don't trust me with at least a steak knife? I'm not a little filly."

"I know you're not a little filly, and I know you know how to use steak knives," Twilight said. "It's just sometimes the weapon will fly towards you so you can use it on the robber, or whatever. That's what it said in the book."

"Alright." Rainbow pretended to be a robber robbing Twilight's library, even though she didn't have to.

"Okay, how does the spell go again? Oh, yeah." Twilight aimed her horn at Rainbow's hoof, then did the spell. Wait, was it the right spell? It said that the spell would shoot out a yellowish beam. Instead it shot out a midnight purple color. The beam hit Rainbow in the stomach instead of her hoof, causing her to get thrown back and hit the wall hard. "Rainbow!" Twilight ran over to her. She was shocked at what she saw. Rainbow seemed to lose her color, just like in the episodes Return of Harmony Parts 1 and 2 when Discord returned. But it wasn't just the loss of color. Rainbow's eyes turned black and the magenta in her eyes turned blood red, like one of those Creepypastas.

Rainbow stood up and made a grab for the butter knife. She pointed it at Twilight.

"Rainbow! What're you doing?" Twilight said as she backed away.

Rainbow flew towards Twilight and stabbed her foreleg. Twilight let out a loud shriek of pain as blood oozed from the wound. Rainbow then flew out the door, leaving Twilight on the floor in a pool of blood.
**********

"Twilight? Twilight!" a voice said.

Twilight opened her eyes and blinked a few times until everything came to focus. She looked over and saw Spike standing next to her. "Spike!"

"Twilight! What happened?" Spike said. Twilight noticed the fear in his eyes. "Who did this?!"

"Spike!" Twilight said again as she tried to stand up. The pain in her foreleg, though, caused her to collapse again.

"We need to get you to the hospital!" Spike said. "I'll call Rainbow Dash. She can-"

"NO!" Twilight yelled. "She's crazy! She tried to kill me!"

"Oh, come on, that's ridiculous. You probably lost a lot of blood." Spike walked over to the phone. Twilight had to do something fast.

Spike already dialed the first few numbers when Twilight did a spell to break the phone wire.

"Hey!" Spike jumped back and looked at Twilight. "What was that for?"

"I had no choice," Twilight said. With all the strength she had, she used her magic to get the butter knife out of her leg. Sure, it was painful, but it was better than leaving it in.

"I'll take you to the hospital," Spike said, grabbing Twilight's uninjured hoof.

2 - Telling the Others

"Okay, Twilight. All better," Nurse Redheart said as she finished wrapping the bandage around Twilight's wound. "I just don't believe Equestria's favorite daredevil would try to kill her best friend."

"I know," Twilight said. "She's been like this ever since- wait a minute..."

"What?" the nurse said.

"It was because of the spell that she's like this!" Twilight said. "I was trying to do a Disarming Spell, but I did it wrong and that's why she's like this! I must find a counter spell!"
**********

"Ya mean to tell me, R.D has turned evil?" Apple Jack said after Twilight told her the story.

"Yeah, and-" Twilight started to tell her more, but got interrupted by her.

"Ha! I don't believe ya," A.J. said.

"I have proof right here that she tried to kill me!" Twilight showed A.J. her bandaged foreleg.

"And that's from Rainbow Dash?" A.J. said. "Equestria's favorite daredevil and our best friend?"

"Yes!" Twilight said. "She stabbed me with a butter knife!"

"Look, if this is a prank, it ain't funny." A.J. was getting mad.

"This isn't a prank!" Twilight left Sweet Apple Acres. Maybe the others will believe her.
**********

"That's ridiculous!" Rarity said. "Why would our best friend try to kill you?"

"I know!" Twilight said. "But look. I have proof she tried to kill me." She showed Rarity her foreleg.

"Ew! Get that away from me! It's all bloody!" Rarity said as she backed away.

"Of course it's all bloody," Twilight said. "I've been stabbed with a knife. By Rainbow Dash."

"Just get out of here!" Rarity walked over to the door and opened it for Twilight, who walked slowly to the door.

"She really tried to kill me," She said as she walked out. "That's a fact! Rainbow Dash ha-"

She stopped in mid-sentence when Rarity closed her door.
**********

Twilight was walking back to her house when she ran into Fluttershy.

"Oh, hey, Twilight," she said with her usual quiet voice. "Have you seen Rainbow Dash lately? I went to her house earlier, but Scootaloo said she wasn't home. And, what happened to your hoof?" she added when she noticed the bandages on Twilight's foreleg.

"Rainbow Dash tried to kill me!" Twilight said.

"What?!" Fluttershy said, jumping a little.

"Yeah," Twilight said. "She turned evil! It was because of me. She let me test out this spell, but I must've done it wrong because she's evil now."

"Oh, that's terrible!" Fluttershy said.

"Wait," Twilight said. "You believe me?"

"Yes."

"Finally somepony who believes me!"

"Have you told the others?"

"Apple Jack and Rarity didn't believe me," Twilight said. "All that's left is Pinkie Pie."

"I'll go with you," Fluttershy said. "It's best to have somepony who believes you by your side."

They went over to Pinkie's house.
**********

Twilight knocked on Pinkie's door. A moment later, it opened, revealing the pink Earth Pony.

"Hi, girls!" Pinkie said.

"Hi," Fluttershy said.

"Pinkie," Twilight said. "Have you seen Rainbow Dash lately?"

"No, I haven't," Pinkie said. "Why?"

"Okay, good," Twilight said quietly, then added, "She's turned evil."

Pinkie looked as if she doesn't believe Twilight. She then said, "Are you kidding?"

"I wish I was." Twilight showed Pinkie her bandaged foreleg.

"And that was from Rainbow?" Pinkie had the look of fear in her eyes now.

"Yeah. She tried to kill me by stabbing me with a butter knife."

"But if she knew you weren't dead, wouldn't she have tried to finish you off?"

"Judging by how much blood I lost, I thought I really was gonna die."

Fluttershy suddenly started talking again. "Um, excuse me? But shouldn't we go see Princess Celestia? She might know what to do."

"That's actually not a bad idea!" Twilight said.

"Let's get the others," Pinkie said.

"They don't believe me but we can try to convince them to come," Twilight said.

4 - Telling Princess Celestia

The three ponies went over to Sweet Apple Acres to convince Apple Jack to go with them to Princess Celestia's castle. When they got there, they found A.J. knocking down the apples from the trees. She was about to hit another tree when she noticed the three coming her way.

"Look, Twilight," She said. "I already told ya that I don't believe ya. So ya might as well leave."

"Just come with us to the castle real quick," Twilight said. "We have to tell Princess Celestia about Rainbow Dash."

"Alright," A.J. said. "But if this really is a prank, you're gonna lose a friend."
**********

"No! I will not!" Rarity said. "No matter what you say, I will never believe you!"

"C'mon, Rarity," Twilight said. "You're our friend. Don't friends have to stick together?"

Rarity seemed to think of something to say. All she could say was, "I... uh... Okay, you win. Let's go."

"Great!" Twilight said.
**********

The five ponies reached the front doors of Princess Celestia's castle. The guards were standing by the doors like always. One of them noticed them and said, "Halt. Who goes there?"

"It's us," Twilight said. "The Elements of Harmony."

"Where's the Element of Loyalty?" The guard asked.

"She turned evil and we need to ask the princess if she knows a spell to change her back," Twilight said.

The guard looked as if he doesn't believe Twilight, but instead of saying he really doesn't, he said, "Okay. You may pass."

"Thank you." They went inside the castle.

"Twilight Sparkle?" said the familiar voice of Princess Celestia. The five bowed to her when she walked towards them, only for her to say that it wasn't necessary and that they can stand back up.

"Princess-" Twilight started, but was interrupted by the princess.

"Twilight. You're a princess as well. There's no need to call me Princess."

"Right, sorry," Twilight said. "Anyway, Rainbow Dash has turned evil and I need to know if there's a spell to change her back."

"How did she turn evil? And what happened to your leg?" Celestia added when she noticed the bandages on Twilight's foreleg.

"Uh..." Twilight didn't know how to explain this.

Celestia sighed and said, "You know what? I don't need to know. You just need to know if there's a spell to change her back?" Twilight nodded. Celestia, though, shook her head. "There is no spell that I know of."

"What?!" the five ponies said almost at the same time.

"There could be a spell out there," Celestia said. "But there could also be NO spell out there."

"So you're saying... Rainbow Dash is gonna be..." Twilight couldn't finish her sentence.

"I'm afraid so," Celestia sighed.

For a few moments, there was silence. But it was broken by something loud outside.

"What was that?!" Twilight said.

5 - The Battle (Well, I Wouldn't Call It a Battle)

The five ponies and Princess Celestia went outside. They saw many small storm clouds coming at them, followed by a much larger one that had Evil Rainbow Dash sitting on it. But it wasn't just her on the cloud. They saw a small, orange figure with a purple mane. Scootaloo!

"I'm coming for you, Celestia and... Wait, Twilight?" Rainbow said. "I thought I got rid of you already!"

"Well, you didn't," Twilight said

"Okay then," Rainbow said. "I get to kill you twice and it'll be just as fun!"

"What is going on?!" Princess Celestia said.

"She's turned evil," Twilight said. "I told you earlier. Remember?"

Rainbow made lightning strike from on of the clouds on command, and the lightning hit Princess Celestia on her foreleg near her shoulder.

"Princess!" the five said at the same time as the princess fell to the ground.

"Girls," Princess Celestia said weakly. "Try... to get... her... to... remember you..."

"What?" Twilight said.

"Trust me... it might... work."

Rainbow's lightning stroke again on Twilight's back hoof, causing her to go down as well.

"Rainbow," Twilight managed to say. "Why are you doing this to your friends?"

"Friends?" Rainbow said. "I don't need friends. Just power! Now hold still so I can finish you off for good." Just before she shot lightning from one of the small clouds, Fluttershy managed to fly into the bottom of the cloud, causing the cloud to poof. Rainbow and Scootaloo fell to the ground. They stopped falling when they put their wings out to start flying.

"Rainbow," Twilight repeated. "Why are you doing this?"

"I must kill anypony who sees me," Rainbow said. "Then, I will rule the world!"

"How will you rule the world if everypony might see you? I mean, they might have to. Won't they?"

Rainbow stopped for a second. After a few seconds, she said, "Okay, you girls are starting to confuse me!" She walked left and right a few times. "Scootaloo! Get me some water! I need something for my brain."

Scootaloo left and a few minutes later she came back with a glass of water. She gave it to Rainbow.

Rainbow took a sip of her water, but spit it back out. "It's warm! You expect me to drink warm water? Where'd you get this from, the lake?" She splashed the water in Scootaloo's face. "Go refill this with cold water!"

Scootaloo was just about to leave again until Twilight stopped her. "Scootaloo! Don't! You're not her slave!" Scootaloo stopped in her tracks. Twilight continued. "Come over here. No matter what she says, come over here. She's evil."

"What, you won't be on your sister's side?" Rainbow said.

"I'm sorry, sister," Scootaloo said.

"Okay, fine," Rainbow said. "I guess I'll have to kill you along with the others." She warmed up the lightning clouds so the lightning would be more powerful. Powerful enough to kill the other seven ponies.

Twilight came up with an idea, but she only has one chance at it. "Hey! There's somepony trying to tackle you to the ground!" She pointed a hoof behind Rainbow.

Rainbow looked behind her and said, "I don't see anypony. Who's trying to tackle me?"

"I am!" Twilight jumped on top of Rainbow and knocked her off her hooves. Twilight looked at Rarity and said to her, "Can you make a rope with your magic?"

"Why can't you?" Rarity said.

"I'm busy here!"

"Okay." Rarity used her magic to make a fifteen-foot-long rope. She levitated it to Twilight, who grabbed it and tied it around Rainbow so she can't move.

"I'm gonna go to my library!" Twilight said. "Make sure she doesn't try to escape!" She flew away towards the library.

"Wait! You can't just leave us here!" Twilight heard Rarity yell out from the ground. "Twilight!!"

6 - Finding a Counter Spell

Twilight entered her library to see if there really is a spell to bring evil back to good. She searched all her spell books but found nothing. She took all her books off her shelves to make sure she didn't miss any books. Yep. She looked at all the books she has. Not a single spell to bring evil back to good. She decided to just give up and-

She saw just one more book on her shelf. That's funny. Twilight doesn't remember getting this book. The cover had three colors: Red, yellow, and blue. She opened it to see if it had the spell she was looking for, and unsurprisingly, it didn't. She was just about to close the book when she noticed another page that she might've missed. She flipped to it and...

"Yes!" Twilight said. She started reading the page for the spell.

3 - Rainbow Dash's Evil Plan

Rainbow Dash went inside her house, only to be noticed by Scootaloo. Scootaloo's face has turned completely white.

"R- Rainbow Dash?" she said. "What... happened to you?"

"I have become evil!" Rainbow said. "I will take over Ponyville. Then eventually the world!"

"Oh, c'mon," Scootaloo said. "Doesn't that ever get old? That's in so many superhero books and movies."

"Join me, Scootaloo!" Rainbow said. "Two sisters ruling the world!"

"No!" Scootaloo stepped back. "I'll never join you! I don't care if you're my sister!"

"If that's what you want..." Rainbow said. She made a small, gray cloud that seemed, to Scootaloo, like a storm cloud. Rainbow made the mini storm cloud strike lightning at Scootaloo. Scootaloo dodged.

"Dash! What're you doing?!" Scootaloo said as she dodged another lightning strike.

"I must kill anypony who sees me!"

"But then aren't you gonna have to-" Scootaloo dodged another strike. "To kill everypony when you rule the world? I mean they can see you!"

"Maybe I'll kill them, maybe I'll let them live, only to be my slaves," Rainbow said. "But right now, You shall die so you can't tell anypony I'm gonna rule the world before I actually do."

"I won't tell! I promise!" Scootaloo said.

"I know you won't tell, because I'm gonna kill you." Rainbow aimed the cloud at Scootaloo.

She was just about to strike when Scootaloo quickly said, "OkayI'lljoinyou!!"

Rainbow put the small storm cloud down and said, "Okay, then. But if you tell anypony, you will get it." She stared into Scootaloo's eyes with those creepypasta eyes, then added, "Got it?" Scootaloo nodded.

7 - Bringing Rainbow Dash Back

Twilight flew back to the castle, where the others were still standing by tied-up Evil Rainbow Dash. She landed next to Rainbow and said, "I've found a spell to get her back!"

"Great!" A.J. said. "Now all ya have to do is do the spell!"

"NO!!" Rainbow said. "It's cool to be evil!"

"Well, too bad," Twilight said. She aimed her horn between Rainbow's eyes and did the spell. The book said that it was supposed to shoot out a small light blue beam, and that's what Twilight's horn shot out.

Rainbow opened her eyes a few seconds later. The creepypasta eyes turned back to her normal eyes. The color on her body returned to cyan and her mane and tail turned back to their normal rainbow color.

"Wha.... What happened?" She said. "Why am I all tied up?"

"Rainbow!" Scootaloo ran up to her sister and jumped on her and hugged her tight.

"Watch out, Scootaloo," Twilight said. When Scootaloo jumped off of Rainbow, Twilight did a spell to untie the ropes tied around Rainbow.

Rainbow stretched her legs and wings. "Why was I all tied up?" she repeated.

"It's a long story," Twilight said. "I'll tell you on the way back to your house."
**********

"I remember none of that!" Rainbow said when she and Twilight landed on her front porch.

"Well, it's all true," Twilight said. "And you know what else is true? You really did look like one of those creepypastas!"

"Ha! Yeah right," Rainbow said. "I'll see ya 'round, Twilight." She went inside her house.

"Yeah, see ya." Twilight headed back to the library.