My name is Twilight Sparkle, and 350 years ago, Sweetie Belle and I vanished without a trace.
Now here we are, in the future.
Equestria has become a utopia, with everypony living in peace and harmony.
Everything is perfect. All a pony could ever want, and more.
My name is Twilight Sparkle, and I want to go home.

Editing provided by Stereo_Sub and JustAnotherTimeLord.

Cover art courtesy of Geomancing.

Reading by lieilengi

Spanish translation by Spaniard Kiwi

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

Princess Celestia always knew that Twilight Sparkle was destined for great things, but she never revealed the source of that knowledge, not even to those closest to her. When the day of Twilight's true destiny finally arrives, can Celestia fulfill an ancient promise to save Equestia's past, present, and future, even it means saying goodbye to Twilight forever? How can Celestia refuse her mother's last wish?

Art by the inimitable Harwick

It's been eighty-nine days since the Day of Darkness, and Twilight Sparkle is still on her own. Eighty-nine days since she talked to anyone other than herself. Regardless of how lonely she feels, she prefers the company of herself to the vicious "lurkers", as she calls them, roaming around outside of her library. Whatever friendly, loving creatures they were before the Day of Darkness, something changed them. Something created these insane creatures, and nothing, not even Twilight, can stop them. All Twilight can do is live — live to fight another day.

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 But when she woke up, her blankets and quilts had been replaced by hospital gowns and padded restraints.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!
Equestria Daily
TVTropes
Asylum Fan Group
The Tartarus Project
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

After receiving an urgent letter from Princess Celestia concerning a grave danger to Equestria, Twilight Sparkle undergoes a crisis of faith. Can she perform a grim task for her beloved mentor, even if it means sacrificing all that she cares about?

Based on a story prompt by TraleRayne. Extra special thanks to Dream of Ponies and Noble Jury.

The sequel to League of Discord. Twilight Sparkle and her friends have successfully returned the six champions to Runeterra, but find themselves dragged along with them. They must now find a way home, despite having no help from an apathetic League, and having yet another pair of ambitious and sinister eyes watching their every move.

No pony is the same after witnessing a work-related death, no matter who they are. The victim was young, eager, fresh-faced, and recently hired. In his last breaths, he let out a scream so heart-rending that the employees who heard it had difficulty sleeping that night. And Rainbow Dash was no exception.

But she's not losing sleep over that. What disturbs her is something far worse—something she said afterwards.

Rumble's got his cutie mark! Yay!

And he's hiding it. He doesn't seem too happy about it. Yay?

Making his way to the library for some advice from Twilight, Rumble must now come to terms with the talent that Fate has bestowed upon him.

Easier said than done when your cutie mark is an embarrassing one.

Submitted to the second Author Support Writing Prompt, with the theme "You are a foal, and you have just received your cutie mark."

The original got positive feedback, and very helpful comments. It actually won the prompt, which was quite a surprise considering the rush job. The comments have been heeded, hopefully this version is better content-wise. Some scenes are radically changed compared to the original, hopefully for the better. My thanks to BronyMaster; Peregrine Caged, SunnyDaze and Tricondon, this story would not be the same without your input.

Edit: While it's been in the Padded Cell for a while (no clue how it got there and how it got there so quickly), it is now also posted on Discord's Domain, since Equestria Daily is just too scary for me. Exuberance!
Edit again: No more Padded Cell? *le sigh*
Edit 3: Return of the Author. Now gotten under the hooves of WRITE, and reception was positive. Some alterations may happen at a later date.

A few months after the events of Super Speedy Cider Squeezy 6000, Applejack decides to officially integrate the others into her family with an Apple tradition: a long night of cider drinking.

The next morning Applejack wakes up...in Twilight's bed...with a gold band on her hoof...and a legally binding document on the bedside table...

Cover art by ThePristineEye

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Check out the live reading!

And check out About Last Night: A Deleted Scene, by EquesTRON.