Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

“Do you remember the day we first met?”

Celestia has been having recurring dreams; dreams that she wishes would go away. But they won't, they only increase in their frequency. One night, she gives in and visits that statue in the royal garden. The statue that haunts her sleep. The statue of her one true love, the statue that she made. That night, under the statue, she remembers the day they first met.

Twilight Sparkle wakes up one morning to a harsh dose of unreality. She is stranded, without her friends, on an island which matches no known locale on Equestria. Surrounded and harried on all sides by the alien and the dangerous, she will find her mettle sorely tested, and find perhaps that the best friends you will ever have in your life are the ones you make when your back is to the wall...

Thanks to CedricBale and noobie56xx for tracking down the name of the artist so I could give them credit.

Twilight had been warned dark magic was dangerous. She thought she could handle it. Unfortunately dabbling in dark magic has left Twilight with a deadly disease that there does not seem to be a cure for. Will she succumb to the darkness, or will friendship and love be enough to make the remainder of her time happy?

When Twilight Sparkle slipped beneath the covers last night, everything had been fine. She had friends whom she loved, a teacher she adored, and a bright future ahead of her. But when she woke up, her blankets and quilts had been replaced by hospital gowns and padded restraints.

Everything is wrong and nothing makes sense; even her friends have changed. The doctors keep telling her that she is sick, that none of it was real and that it was all in her head. Yet she remembers a life far beyond the hospital walls. She couldn't have made it all up on her own. They must be lying… right?

Ask Asylum Twilight - Still updating regularly!
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TVTropes
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Russian Translation
The Asylum 20,000 View Spectacular Stage Show!

Art:
Asylum Cover by conicer
Twilight and Twilight Smiles by dreamingnoctis
Mirror Twilight and Plague Doctor by Jaestring / BloodGoldWings
Twilight Smiles and Doctor AJ by conicer
Nurse Ratchet and Silas and What's in the mirror? by Archonix
Doctor AJ Sketch by Archonix | Colored and vectored version by ReFro82
Twilight's Asylum by Khan the Cake Lover
Smilight by HappySwitch
Twilight Waking Up by Dombrus
Fan Art by toxicdemon10
Asylum Twilight by Madness-With-Reason
Asylum Fluttershy and Asylum Ch 26 by Downburst-Backspace
Twilight and her Twin by v747
Birdgirl by sirValter

Readings and Videos:
Asylum Animated Trailer Video by formuladash
Reading by Gammarobot (SugarCubeRadio): All Chapters Here
Reading by Ender Brony: All Chapters Here
Reading by VisualPony: All Chapters Here
Reading by MelancholyIguana: All Chapters Here
Fan Trailer by Kaidan: Asylum FanFic Trailer Cuckoo's Nest

Sanctuary by Kaidan
Broadhoof Files: Dr. Humors by TypewriterError
Broadhoof Files: Corporal Phalanx Spear (Ret.) by Phalanx Spear
A Hearth's Warming Tragedy by Seven Fates

A special thanks to Breath of Plagues, Rex Ivan,
ChudoJogurt, Cynewulf, Death the Kid, Selbi, PrinceDolph, Blahman2816, Queue, and Gage!

Axan Zenith - Dr. Dreamer
Dratini4 - Way Finder
psychicscubadiver - Bright Mind
Velkaden - Dream Chaser
Reese - Silver Glow
Viola Heartstrings - Clover
Archonix - Spinney Whiteacre

Featherweight has had a crush on Scootaloo for as long as he can remember, but he never did anything about it. That is, until the fateful day where he is given the challenge to kiss her before nightfall.

Rainbow Dash struggles to figure out why Pinkie Pie keeps acting weird, and seems so happy about spending Hearts and Hooves with hanging out with her, while also puzzling over the fact that Cloud Kicker and Blossomforth seem to be going out of their way to help the two of them enjoy the day.

Cloud Kicker and Blossomforth need to have their own tags, because they're awesome characters who deserve to have more stories written about them.

Has a semi-sequel-follow-up-side-story:"The Life and Times of a Winning Pony."

Everypony who knows Fluttershy has no doubt noticed that she possesses some strange phobias...but when those phobias are magnified by the effects of some accidentally ingested Poison Joke, will her poor heart be able to take the mayhem that ensues as her greatest and unfounded fears spring to life?
Also, suddenly Flutterguy...

Please don't take this too seriously (I love Fluttershy to death) X3
Rated Teen for mild language and random weird moments!

Frosty Mug runs the premiere (and only) watering hole in Ponyville. He's been behind the pine for years, and listened to many a sob story, and joyous announcement. Enjoy his recollections of a rather strange week in which he served a different Element of Harmony every day, and a pony he would have never thought he'd have the honor of getting drunk. These are the memoirs of a Ponyville booze vendor.

Now with bonus drinks! Consider it 'Happy Hour'!

Warning: Shipping is mentioned.

When a freak reading accident causes Twilight to be admitted to the Ponyville hospital, Rainbow Dash is right by her side. Compelled by a sense of duty and repayment, she takes it upon herself to cheer up her friend.