It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

For more than a millennium, it was believed that the princesses were immortal. But as time marched ever forward, it become clear that even the alicorns won't live forever.

Princess Celestia is at the end of her life.

While Equestria must find a way to cope with this new reality, those that are truly suffering are those closest to her. None are struggling as much as her sister, Princess Luna. Not only is she forced to handle the duties of ruling Equestria and taking care of the transition, she must also cope with the imminent death of her beloved sister.

Image source.

Warning: comments may contain spoilers.

Twilight breaks Celestia's doors.

But then, you'd be mad too, if your stupid brother got drunk and told you that you were adopted...

Rainbow Dash asks her friends what they might want carved on their tombstones. Her friends tell her.

Based on the August 2014 prompt from The Writeoff Association, "Famous Last Words."

This story is a sequel to Dear Sweetie Belle

Everypony has to grow up sometime. Now a teenager, Sweetie Belle ventures to the Fillydelphia Academy of Music in order to start the search for her biological father. Will she find the stallion she's searching for, or is she doomed to disappointment?

After an accident robs them of their parents, Rarity writes Sweetie Belle a letter laying bare a secret kept all the little unicorn's life.

"It's fascinating the level of depth this story takes. Just the part alone about why Rarity represents generosity is enough to bring tears to even the toughest critics. This is an amazing story in every way. Mature in some of its themes and true to life, yet not graphic or exploitive, 'Dear Sweetie Belle' is a must for My Little Pony fans who need a great, sad story to tide them over."
-Obake, Pony Fiction Archive

Beautiful cover-art by AcrylicDawn

A fantastic bit of fan-art from my dear friend Kaitlyn Warner.

A live reading by the Doom Pie Network Right Here

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

Contribute to the TVTropes page!

Check out the live reading!

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

As I sit on this branch, looking at the town through the mangled, black branches, I began thinking about why I came here. About everything I left behind on Earth.

I wish I'd never have come here...

Consider joining the Ending-verse if you liked it!

This story has been redone. Also, A brilliant lad called Vlad decided to write a sequel. I seriously recommend reading that and following him.

Also, there's a prequel in the works!

This story is a sequel to Princess Celestia The Changeling Queen: Stories Behind the Mask

At the Royal Wedding, Chrysalis and the Changelings were revealed to all of Equestria.

But another mask was torn away that day. A mask born for a thousand years. A mask created on one promise. A mask, that has become synonymous, fused, to its bearer.

A mask that when ripped off, causes Twilight, her friends and Luna to question everything they ever knew about the one pony, one very important pony.

At the Royal Wedding, the meaning of the phrase 'Princess Celestia' changes forever.

NOTE: Chrysalis is NOT Celestia!!! That'd be impossible to pull off.

Credits to: Plainoasis for the design of the cover art
Note 2: Original cover art here: https://angelea-phoenix.deviantart.com/art/Contest-entry-Changeling-Celestia-337023552

Pre-read/edited by Zervziel,
Blankscape,
FinalFan,
Courage Fire
Aurora Borealis

Side Stories to this can be found: here.

An audio-reading on youtube up to Chapter 21 is up by StraightToThePoint Studios. I'm aware there are others but this is the nearest complete one: [embed]https://youtu.be/X3eMW673CSY[/embed]

There are also 2 print versions of Princess Celestia:The Changeling Queen. Nonexistent Publications run and Ministry of Image's run.

Contribute to the TV Tropes Page (thanks to Babs_Seed72 for getting it up)

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