This story is a sequel to Days of Wasp and Spider

Believed dead by their creators, the ponies that will become Celestia and Luna have broken their mental conditioning and escaped into the wilderness. Here they plan the revolution that will free all ponykind, knowing that it is only a matter of time before their ruse is discovered.

Back in their underground arcologies, the ponies' erstwhile masters deal with the consequences of the escape, all the while unaware that something lurking at the bottom of space-time wants them all dead.

A Soot-Covered World, book 2.
Canon species only/no humans.
This story has nothing to do with the Holocaust.
Art by InLucidReverie, used with permission.

Things happen. Nothing happens in between these things. If they did, they'd simply be things with more nothing between 'em. So how do you measure the nothing? Two ponies, equally flawed, intend to find out together... no matter how far it takes them.

This is the story that won first place in /fic/'s eighteenth write-off competition. The original story--here, split into three chapters--was written and edited over a period of just seventy two hours. I intend to add additional chapters whenever the fit comes upon me. Do yourself a big favor and check out all the other awesome entries as well!

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 But when she woke up, her blankets and quilts had been replaced by hospital gowns and padded restraints.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 losing out on first chair cellist in the Manehattan Philharmonic Orchestra to her biggest rival, Octavia tries to console herself with a healthy bout of moping and a strong drink. One drink soon becomes several, though, and her evening of debauchery leads to a long night of frenzied, sordid passion with her best friend Vinyl Scratch. It isn't until she wakes up in the morning with Vinyl's legs wrapped around her that Octavia remembers two very important things: one, she's straight. And two, if the infamously strict conductor of the Philharmonic finds out how unrefined Octavia's social life has become, she could lose her one and only chance at the only dream she's ever had in her life.

This could get a little bit complicated.

Cover art by CouchCrusader, who I swear to God is like fatting me up for slaughter or something with all the custom stuff he does for me.

Half-heartedly edited by NTSTS #dunked

*REWRITTEN*

Eager to vindicate herself about her steadfast belief in the fabled existence of humans, Lyra turns to a "special interests" firm to acquire a prime specimen of the legendary bipeds. Or two. Or three. Or four. Or a dozen. Or a thousand...

FEAR crossover

Being left for dead in Trottingham was a major disappointment for the little changeling prince, this is true. Being adopted by a paddle-happy pony wizard, this ‘Star Swirl the Bearded,’ was also a bit of a downer at first. But Stasis still manages to appreciate the savory side of things.

Unfortunately, not all pastel prey are as soft and as chewy as they may appear. Stasis has seen the golden soldiers and their goddess’ wrath, and if he can’t keep his true nature a secret, he may see them yet again.

And of course, not all changelings see fraternizing with prey in the same light….

Cover art commissioned from Raikoh-illust

After the most important night of her career is ruined and its saboteurs not even so much as punished, Octavia's life changes. She begins to pursue a path that has never been seen before in Canterlot, where concertos and rhapsodies give way to controversy and rebellion.

A path where symphonies are composed with cans of spray paint.

Cover art used with permission by LuGiAdriel14

When Fluttershy received her certification as a fog specialist, she only wanted a plausible excuse to write off the expenses associated with her ground-based house on her taxes. However, when an accident in Cloudsdale sends a blanket of industrial-grade clouds rolling towards Ponyville, Fluttershy suddenly finds herself in charge of coordinating the response, mostly because she's the only fog specialist in the area. Can our heroine step up to the challenge at hoof, or will she risk facing the wrath of the Equestrian Revenue Service?

Artwork by Page Turner. Now with a TVTropes page!

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.