My Little Pony:Friendship Is Magic X Equestria Girls

by ace_attorneyfan800

Rating: teen
Tags: Random, Alternate Universe, Human, Romance, Adventure
Length: 4690

When Flash Sentry enters through the portal with Twilight a whole new season 4 is created with chaos and love in the air Flash is thrown into a whole new world with a new life and a set of adventures

After Sunset's defeat Flash goes through the portal with Twilight to live a life with her. However when he goes through he doesn't come out a pony, but still a human. Now in a world totally unfamiliar to him Flash enters a series of adventures that will test his love for Twilight while at the same time they are ones that'll risk his life.

(WARNING:Bad grammar and spelling is ahead. I'd fix them but I'm terrable with grammar so if you see a mistake let me know how to fix it and I'll get to it at some point or another.)

(This was created after semi-finishing my Flash Sentry outfit and after a few PMVs' and my head canon which is "If a certaint human that has a pony version of him in Equestria went through the portal, they would come out still human."
Also this is a "What-if?" story which is "What-if Flash "Brad" Sentry (Yes I still call him Brad even after his official name was givin) went through the portal with Twilight? How would've it affected season 4 as we know it today?" Well my friends I'm gonna answer that toady.)
(Rated Teen for well just in case. Because we all know how we humans LOVE to cus.)
(Also their's a romance tag because of Flash(Brad) X Twilight in the movie and it will happen here)

Published 1970-01-01 00:00:00 UTC
Last updated 2013-12-27 15:30:02 UTC

Prolouge To What-if Part 1

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"TWILIGHT!" Flash shouted catching Twilight's and Spike's attention before she and spike went into the portal

"Flash," Twilight asked turning around to see Flash in his original clothing instead of the suit as well as him carrying his guitar case "what are you doing?"

"I'm going with you Twilight." Flash stated as he stopped infront of Twilight and dropping the case

"What!?" Twilight shouted "Flash no! You don't belong with us in Equestria!"

"But I belong with you Twilight!" Flash stated taking her hands "I finally realize that. All this time I-well i'll just come up clean. I love you Twilight!"

Twilight then felt her heart rate rise after hearing that and a tear formed.

"Flash,"Twilight muttered

Then a tear ran down her cheak.

"Flash you have a family and they might miss you!" Twilight stated

"I already wrote them a note." Flash stated with a tear "You know I'd even just wait another two year if I had to, so I'm going with you now. I'll miss them, but I'll do anything just to be with you."

Twilight then closed her eyes tight and looked down and opened them up and looked back up to Flash with a smile.

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"OK Flash. You win." Twilight stated "I'll let you go with me."

Flash smiled as he picked up let go of Twilight and picked up his guitar case.

"You sure your guitars all you'll need?" Twilight asked

"I'm sure." Flash stated

"You know Flash I'm getting the fealing that with you being the gentlecolt-man you are you'll fit right in." Spike stated

"I'm starting ot think that too." Flash stated

Spike was the first to go throught, twilight followed after and Flash was the last to go through. Flash felt dizzy as he, Twilight, and Spike were twirled around in a vortex of rainbow.

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Meanwhile the others were waiting in the room with the mirror.

"Ugh! C'mon Twilight!" Rainbow muttered to herself

Just then the mirror started wobbling and Twilight came out on her hind courters until she wobbled herself and fell one her front legs with a smile being glad to be back on all fours. Spike then followed suite and everyone started crowding them.

"TWILIGHT!" they stated

"Oh we were so worried." Applejack stated

"Sunset Shimmer, is she alright?" Celestia asked

"Don't worry." Spike stated

"We left her in good hands." Twilight added

"What are hands?" Rainbow asked

"And by we, do you mean you and Spike?" Rarity asked

"Acctually-"

Twilight was inturupted when a guitar case popped from the mirror.

"Twilight! A hand will you!?'" Flash asked as his hand poked from the mirror

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"Flash!" Twilight shouted as she went to the mirror and used her magic to get him out, which accidently sent him to the end of the room

"

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" Flash shouted as he was flung to the other end of the room

"OW!" Flash shouted as his back landed at the wall and he slid down to the floor

"Flash are you OK?" Twilight asked going ot his side

"Never better." Flash stated in pain as well as cracking a smile

"Here it made it through." Twilight stated levitating his guitar case over to him

"*Whew* That was too close." Flash stated opeing the case to reveal his electric guitar  "Still in one piece." he stated in relief

"What is another being from the other world doing here!" Celestia stated

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Twilight gasped and remembered that celestia and Luna were waiting for her as well

"Princess you don't understand-"

"Twilight this creature being here might upset the balance of our world!" Celestia stated "He must return at once!"

However just as Celestia stated that the mirror made a noise of hardening and when Pinkie touched it it reflected back like a regular mirror.

"Awww it's back to normal." Pinkie stated

"No! Twilight! What have you do-"

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"Enough!" Flash shouted standing up "Stop blaming this accident on her!"

Celestia was taken back by this.

"But she took you away from-"

"I went on my own accord!" Flash stated "Just who do you think you are!"

"Princess Celestia, one of the rulers of Equestria-"

"Princess or Queen you have no right to accuse someone without going through evidence!" Flash stated "Just because I went through with Twilight doesn't mean you can treat her like a crimminal and punish her for a crime she didn't commit!"

"But your home-"

"As long as I'm with Twilight I am home." Flash stated as Twilight offered him a hoof and he held it "And I don't care if I'm stuck a human and she's a pony or if you all look like the pony version of some of the people from my world. As long as we're togeather we will always be happy."

"Right." Twilight stated

"I-but-I-but-*huff* you win. I gusse you did go with her on your own accord. But I'm still not happy with you Twilight." Celestia stated "We will have a talk about weather or not your coltfriend gets to stay or not."

Twilight and Flash then gulpped at this with wide eyes and fearful faces.

                                                          *********

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"So you're names Flash Sentry?" Rainbow asked Flash as she and the others were walking with Flash and Twilight

"Yep." Flash stated

"And y'alls were dancin' like a goofball?" Applejack asked

"Followed by a wiered dance called Gangnam Styal or what ever." Twilight stated "I couldn't even understand a word of it!"

"Well it is in Korean so what would you expect?" Flash asked

"Good point." Twilight stated

"Gag num style?" Rainbow asked

"Gangnam style Rainbow." Twilight corrected

"Can you show us the dance?" Cadence asked

Flash, Twilight, and the others than stopped in their tracks.

"Umm."

Flash was in internal conflict if he should or not.

"Well uh the dance can only be preformed by humans." Flash stated a little nervous

"I don't know Flash, I think it can be preformed by ponies if they know how to stand on their haunches." Twilight stated doing so wobbleing a little "With all my-whow-time as a huiman I've-yipe-been on my haunches a lot so I've gotten used ot it. What do ya say?"

Flash then huffed and said "Alright." in defeat. He went into his back pocket and pulled out his IPod which had Gangnam styal at the top of the list next Gentleman by PSY as well, he placed his guitar against the wall and where his IPod wouldn't fall over and pressed start as he and Twilight got infront of the group.

(Using a video because I don't want to explain iut all since that would take too much time so enjoy the video as a representation of it:

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)

As the song ended, and Flash and Twilight got out of their rediculous position, Flash went over ot his IPod and turned it off as he placed it back in his back pocket.

"That was...um." Cadence was at a lose for words "All I can say is that it seems nopony can mimic that dance. They'd be out of breath by the end."

"Well we rockers can do it because our title says it all. We breath music, we live music, we make music. And on the occations make a dance to the song, so we never run out of breath sometimes" Flash stated

"Rocker?" Rarity asked

"I can explain that." Twilight stated "Back at Canterlot High people were seperated into six groups: The Dramas, The Eco-teens, The Fashonistas, The Sporties, The Techies, and The Rockers."

"Why was everypony seperated that way? Weren't everyone social with each other?" Fluttershy asked

"Mabey everybody is social here, but at C.H everyone was with their own group." Flash answered "However before Twilight came along one thing we DID have in comin was that we all knew that Sunset was going ot rule our school until we graduated."

"Not until I came along." Twilight stated

"Thanks for getting me out of the mind controll by the way." Flash stated

Twilight then yawned and said "Well you were the first to get unhypnotized."

Flash yawned after she finnished.

"I take it you two are tired?" Cadence asked

"Well when you've been dancing for as long as we have you'd be tired too." Flash said with a yawn

"Wanna sleep with me for tonight?" Twilight offered

"Sure why not." Flash said getting his guitar case

They left everyon as they headed down the hall tword Twilight's room and wondered as to what might be in store for them when Celestia said she wanted to discuss Flash with Twilight.

                                                          *********

"Lulu I don't know what to do." Celestia said pacing around the throne room of the crystal palace

"Tia you already know the answer." Luna stated

"I don't. Lulu I just don't!" Celestia stated

"But you do. The answer is right infront of you Tia." Luna stated

"It. Is?" Celestia asked stopping in her tracks

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"Flash and Twilight love each other do they not? It's quite clear that they should be togeather." Luna stated

"But-"

"If he is upsetting the balance Tia a crack in space and time would've told us so, but it hasn't. It was faith that brought them togeather, and it is faith that united their love for each other togeather so Flash could come here with Twilight. Don't you see that Tia?"

Celestia opened her moth to protest, but closed it and let a smile hop on her face.

"You're right Lulu, even after being 1,000 years old and watching my own niece bring love around us, I'm still blinded. I'm starting to even get the feeling like you'll make an excellent leader along with Twilight if I ever do come to pass."

"Even if I have been on the moon for 1,000 years I still know a thing or two about diplomacy sister. You did teach me before the time of my banishment and after I got freed you still taught me. Just like Twilight and Flash Sentry's love for each other we share a bond that can never be broken, even in death we will still share that bond."

                                                          *********

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Twilight woke up the next morning to find Flash getting his socks and shoes on.

"Hay Flash." Twilight stated with a morning moan

"Morning Twilight." Flash said as he walked over to the mirror and brushed out his bedhead hair back to its normal look

"Man I had the CRAZIEST dream last night." Twilight stated

"What was it about?" Flash asked

"It was after this that Celestia came in telling us to come into the throne room as well as asking you to bring your guitar with you and when we got their Celestia talked about your electric guitar having the ability to summon any song at your command to attack your attended target, the weird part was that after she said that you got out your guitar and when we summond Discord to help prove it you played a song that sent him chaotic and over the edge, I can't remember what you called it, but that's all I can remember right now."

"Whow, that is freaky." Flash stated

"And she is correct." Celestia stated as she walked in "Flash bring your guitar, you and Twilight as well as the others are being called to the throne room."

Twilight and Flash's eyes went wide as they herd that and they looked at each other for a moment, but after that they huffed and complied.

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As Flash and Twilight expected, everyone was their, even the pony Twilight bumped into before her adventure into the mirror.

"Ah you've arrived." Luna stated

"What did you think? That we wern't going to show up?" Flash joked

"Anyways, we are gathered here to bring news. After Flash's arrival his instrument known as an electric guitar has drawn some kind of magic into it which will alow him to summon any song at will to help him in a battle." Celestia stated

"So basicly my guitar is a weapon as well as an instrument now?" Flash asked

"Yes."

"Sweet."

"Now for a test to see if we are correct." Luna stated "Twilight, summon Discord if you will."

"Of coarse." Twilight stated lighting her horn

As Twilight's horn glowed a ball of energy in the middle of the room got bigger, and Flash got his electric guitar out with a face of ditermination on and when the ball was gone Discord stood, tall and with his golden eyes open.

"Whow! A human! I never thought you had it in you Celestia." Discord stated looking at Flash

"Discord you have been summoned here to help test something of mine." Celestia stated

"Let me guse, you wantme to attack Flash Sentry over their to see if his guitar holds some kind of music magic, and before you ask just because I may not be with you, doesn't mean I don't hear what's going on remember?" Discord stated

"Enough stalling." Flash said strumming his electric guitar "Lets fight!"

Just as Discord turned around getting ready to attack Flash strummed so hard that vissible vibration waves were scene and when it struck Discord music played.

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"This is my town, watch your step if you come around. I don't think I know you, but mabey it's time to show you! This is my home, I'll be standing here alone and if you think you're ready well? C'mon in and ring the beeeell!"

While he was singing a blue aura surrounded Flash which surprised everyone as much as random items from a paint can to a chest full of books physicly hit Discord.

"Hello Mr.Hill, finally you got your hit. Coming from the nowhere lying across the clover. Hello lady slick, did you pull another trick? Beautiful make over, make the perfect cover. Didn't you know? Things don't come easy sooo! This is my town, watch your step if you come around. I don't think I know you, but mabey it's time to show you! This is my home, I'll be standing here alone and if you think you're ready well? C'mon in and ring the beeeell!"

As Flash continued with the song more things started coming from nowhere and pulverized Discord leaveing everyone still in awe.

"Hello shinny suit, hanging out in the neighborhood. You think you're such a pro, you know you're just a (Pop) blow! Hello charming ghost, have you made your final toast? Everyting is their just to see what you can-Didn't you know? Things don't come easy sooo! This is my town, watch your step if you come around. I don't think I know you, but mabey it's time to show you! This is my home, I'll be standing here alone and if you think you're ready well? C'mon in and ring the beeeell!"

It seemed as if the parade of pain Discord was feeling wouldn't stop, especial during the solo when the floor pulled out from beneith him into a pit where he teleported out only to be bombarded with more items like a blow torch and even a fire extinguisher, heck even a 3DS at one point at his nuts.

"Balistic, stranger, rearanger, I think we're in BLOW UP DANGER! This is my town, watch your step if you come around. I don't think I know you, but mabey it's time to show you! This is my home, I'll be standing here alone and if you think you're ready well? C'mon in and ring the beeeell, ring the beeeell, ring the beeeell, ring the beeeell! C'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, c'mon in, hooooo!"

When the song ended and Flash stopped playing Discord was in ruins, be had a cut on his face, one of his wings were broken this griffon hand was burning to a crisp, he had a black eye, one of his antlers were cracked and falling apart, one was even gone, and his tooth was also damaged and to top it all off he was in a literate knot.

"I think that proves it." Discord said spiting a little blood

Prolouge To What-if Part 2

"That. Was. AWESOME!" Rainbow stated "You just totaly kicked his but!"

"Oh. My." Fluttershy muttered

"Gusse I don't know my own strenght?" Flash stated weakly laughing

"Flash that was amazeing!" Twilight stated

"It seems like I was correct." Celestia stated with a smile

As Discord was being dragged away by Fluttershy Flash put his electric guitar back in its case, Luna then walked over to Flash and stated "Me and my sister Celestia have decided to let you stay with Twilight Flash. We see that it is love that brought you togeather and we will not change that."

Flash and Twilight smiled at that and hugged each other knowing that they could be togeather.

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The next few days Flash spent with Twilight was either in the library learning about the ponies, helping her friends, making friends, or helping her with any royal duties, however after that it was time to return home.

"Well I never expected this to go by so fast." Twilight stated as she and the others headed tword the train station

"I've learned so much in so little of time Twilight that I'm acctually exited to go with you to a library, who knows what I might learn." Flash stated "I've even made friends with so many ponies here like your friends, the princesses, Shining Armour, Discord and even this crystal pony by the name of Oppalbloom."

"And when we get home you'll make lots of friends." Pinkie stated jumping up and down as they were walking

"I can already imagine it." Flash joked

When the borded Twilight and Flash went to the end of the train and looked out as it left the station for Canterlot.

"Flash." Twilight stated "Their's something I need to ask you."

"What is it?" Flash asked

"You know how alicorns are immortal right?"

Flash nodded.

"Well while I was teaching you about Equestria and about ponies I discovered a spell book that held a spell that could turn anything immortal, they'd never change, age, but their looks and averything else about them would never change. Flash, I want to use the spell on you so we trully can be togeather."

Flash was a bit taken back by that.

"Twilight I don't know." Flash stated

"You being mortal would mean I'd see you die. And I don't want you to die!" Twilight said with some tears "Nopony could ever replace you! Their's only one Flash and I don't wanna see you go!" Twilight stated hugging him hard and crying into his jeans

Flash looked down at Twilight then back up and thought about it.

If I choose to join her, I'd live forever, but I'd see ponies die. If I don't she'll try to probibly commit suicide and join me in the afterlife, and I can't let that happen. Flash thought

"Alright you win." Flash stated with a huff "Use the spell."

Twilight looked up at him.

"I'd rather see you happy than see you suffer without me." Flash stated

"You know, you kinda remind me of Rainbow, Flash." Twilight stated

"Am I really that annoying?" Flash asked

"No. You're very loyal." Twilight stated

"I'll do anything to please you." Flash said as he bent down and kissed Twilight for which she returned

The kiss lasted for a second before they split and Twilight's horn glowed.

"Thanks again for standing up against Celestia for me." Twilight stated

"Anything for you my special somepony." Flash stated

"Back at you special someone." Twilight stated as her horn got brighter and Flash was envelopped in a rasberry aura

Flash looked startled at first but closed his eyes and smiled as he felt the arua go away.

"It's done." Twilight stated "You know have alicorn immortality in your geans."

"So does this mean if we have kids they'll be immortal?" Flash asked

"Who knows," Twilight stated "we'll just have to wait and see if that will wever come."

                                                ***********

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It took at least a day, but the group finally made it back to Ponyville, however when the exited the train they found a mint maned pony with a lyra cutie mark waiting for them.

"Lyra?" Twilight asked "What are you doing here?"

"Hu-man." Lyra muttered with wide eyes "Human senses, tingleing."

Lyra then turned her head to her left to see Flash getting his guitar from the pack of luggage and turned to see Lyra looking at him with a psycotic grin and wide eye as well as a face that says "I'll kidnap you in your sleep and do experiments on you."

"Um hi?" Flash asked

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"You better watch yourself in your sleep human." Lyra stated like a maniac "We'll be coming for ya in your dreams AND in real life."

Flash just kept his back to the train until he reached Twilight.

"Twilight I'm getting scared." Flash stated

"Me too lets go." Twilight stated as she, Flash and the others walked away with Lyra stateing "I've convinced everypony else around here, and soon we'll get your hands." which scared them to smitheriens

"What do ya think she ment Twi?" Applejack asked

"Heck if I know, but what's with all the creepy smiles?" Twilight stated as she looked around and noticed everypony was like Lyra only some had black eyes with red pupils

"What is going on here?" Rarity asked

"Ya since when did this turn into a creepypasta party?" Pinkie asked

"So scary." Fluttershy said hiding behind Rainbow

"So far the only ponies who don't have these things are that of the foals." Rainbow stated looking at the foals

"Somepony else hasn't been effected, Big Mac's still Ok." Spike stated pointing tword the applestand "But Applbloom isn't."

Then all of a sudden the ponies with the wired expressions looked at them with the creepy smiles, all the while their heads turned slowly.

"Ok I'm officialy freaked out!" Flash stated with wide eyes

"Hu-man." was all the ponies kept chanting at them as they got to Golden Oaks Library. Twilight then shut the dor behind them and locked it firmly ans she turned on the lights to reveal that her library was in shambles, books were everywhere and nothing but "Human" was the only word in all the books.

"OK now I KNOW something strange is going on." Twilight stated

Prolouge To What-if Part 3

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Just then the group heard the sound of a window breaking and unknown to them a kitchen window broke, then when the group looked around they wet wide eyed and huddled around Flash who looke scared stiff because the ponies from outside was surrounding the treehouse, all but one.

"Get, get, get, him, him, him." was all they kept chanting as the sound of hoofsteps came closer to the group

Flash then got a look of ditermination as he picked up his guitar case and opened it to his electric guitar in which he strummed for a bit until he stopped and put his determined face back on. Out of the darkness Lyra came out levitating a knife and glass container with the words"Hands" writed in blood.

"GIVE ME YOUR HANDS!" Lyra shouted as she charged at the group

"I don't think so!" Flash shouted as he strummed so hard a vissible vibration appeared and hit Lyra freezing her in place

"Lyra must be controling them all." Twilight stated

"I know just who to summon to fix this." Flash stated with a smile

"How?" everyone asked

"Fight slasher with slasher!" Flash stated strumming up another vissible vibration which summond a bipedled zombie like creature with a hockey mask on and a machete in his right hand

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"Who in Equestria is that?!" Twilight asked as music started

"Listen and I'll tell you." Flash stated as he motioned Jason to attack Lyra with his machete which caused him to use his machete to slash Lyra across the face and across the room

"You're with your baby, and you're parked alone, on a summer night, you're deep in love, but you're deeper in the woods, you think you're doing alright. Did you hear that voice? Did you see that face? Was it just a dream? This can't be real that only happens babe, on the movie screen."

Jason then picked Lyra up around the neck and started strangleing her.

"Oh but he's back! He's the man behind the mask! And he's out of control, he's back! The man behind the mask! And he crawled, out, of, his, hooole."

Jason then stabbed Lyra with his machete and not blood came out, but black mist from her eyes and mouth and ears.

"You're swimming with your girl, out on lovers lake, and the wind blows cold, it chills your bones but you're still on the make. That's a bad mistake. Aaahhh but the moon was full, and you had a chance, to be all alone, but you're not alone, this is your last dance, and your last romance."

The mist then started coming out of the ponies outside until a darkness shild formed around the treehouse.

"Yeah 'cause he's back! He's the man behind the mask! And he's out of control, he's back! The man behind the mask! And he crawled, out, of, his, hooole."

During the instrumental Jason threw Lyra across over to the element of harmony sand and she crashed into it makeing the elements scatter all over the place.

"Oh if you see him coming get away if you can! Just keep on running, run as fast as you can! He's a dangerous, dangerous man! And he's out tonight! And he's watching you! And he knows your house!"

Twilight then quickly turned out the lights to see the elements glowing as well as the crownon her head.

"No don't turn out the lights!"

After hearing that Twilight turned them back on to see Jason starting to dissapear and Lyra still looking as evil, but then the elements jumped onto their owners.

"HANDS!" Lyra shouted charging at them

"Yeah 'cause he's back! He's the man behind the mask! And he's out of control, he's back! The man behind the mask! And he's after your soul, he's back!"

That one line continued for a bit until the end when Twilight used the elements on Lyra andeverything whent white.

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Everyone woke up seven minutes later to find that everything was back to normal and Lyra was back to her usual self.

"Wow! This was one heck of a day." Rainbow stated as the elements were put back in the display case

"Well if it hadn't been for Flash we would all be crazy." Twilight stated

"Like you said, my cutie mark would be that of the symbol on my shirt, meaning that of great defence in a flash." Flash stated "I always was dependibal back at Canterlot High to tell you the truth so I could see why."

"Enough chit chat!" Pinkie stated "It's time for a party!"

"Oh no." Twilight and Flash said facepalming and facehoofing

The party went on all day, it was a "Welcome to Ponyville and Equestria and Thank You For Saving Us" Party for Flash, it went on all day until spike burped up a scroll.

"A letter from Celestia?" Flash asked

"It says: Dear Princess Twilight,

It is atleast five more days until the summer sun celibration and you, Flash, and the others are need for the celibration. I hope to see you soon.

                       Sinceraly,

                                 Princess Celestia." Spike read

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It took them a while but in a day the group finally made it to Canterlot.

End of Prologe To What-if

Start RE:Princess Twilight Sparkle Part 1