Luna's return was met with significant fanfare, though with all the fuss dying down, and with the formal re-establishment of the night court months away, Luna seems to have had little to do other than lounging around.

or so Celestia thinks.

When she finds Luna entering the Ministry of Records unannounced she wonders, Just what is her little sister up to?

Edit: WOOO! Featured on June 2, 2015 (at least in my country's timezone i think) Thanks to everyone!

Twilight Sparkle has spent months researching chaos magic, developing a new spell to unlock magic nopony has ever experienced before. But when something goes wrong with casting, Twilight finds herself turned into a Draconequus and unable to control her new chaos magic. If she ever wants to be a pony again, there is only one who can help her learn to control her new magic.

Of course, learning from Discord was never going to be simple. And after a while, being a draconequus doesn't seem so bad anyway....

Based on the concept by Lopoddity

Editing by DB_Explorer
Proofreading by Mac349 (Ch. 1-11), Trippy998, Just A Fabulous Cat (Ch. 1-5), Doctor Candor and skysthelimit (Ch. 1-11).

A flip of a coin. A twist of fate.

Twilight Sparkle, younger sister of Princess Celestia's personal student, Shining Armor, grew up listening to her brother's bygone dreams of joining the elite of the elite: The Royal Guard.

Now, fresh out of the Academy, this young mare is ready to prove herself equal to the deeds of the great soldiers she read about as a filly. Too bad the princess she ends up protecting isn't Celestia.

Twilight Sparkle is happy with her life. Although the newly founded Twilit Court presents her with challenges, she can still continue her studies and even discover a new kind of friendship. However, this quickly ends when she suddenly loses a large portion of her memory. Now her friends have to adjust to a Twilight who doesn’t seem to know a thing about friendship. As if all that wasn't enough, a sinister force is pulling strings without anypony being able to unveil the identity of the puppeteer...

"The past catches up to everypony. We try to forget some events, but we do not know what we have lost once they have left our minds. We are no more than the entirety of our memories. Hold on to them, for they are what you are."

Artwork by CosmicUnicorn

A Metroid Crossover

A meteor, resistant to magical manipulation, crashes in Equestria, Planet Equis, and soon spreads an unknown poison throughout the land. Containment is all but failing and the Princesses have little power to stop the spread of the Great Poison. The Elements of Harmony are of little use as no knowledge exists of this threat that consumes all life. Help comes from a certain Hunter, clad in metal.

Samus Aran will not only fight for her life as always, but her own sanity as well as these ponies that she begrudgingly starts seeing as allies. New horrors and abilities await her as a reason to fight slowly festers within her, possibly unlocking something she had been denied for so long: Friendship.

Notes and Resources:

This takes place after Echoes. The events of Corruption will have not happened yet. In terms of MLP, consider everything up to and including the Crystal Empire. Princess Twilight does not exist here, etc. The official Metroid Timeline can be found here.

As well, this story references the manga in many places. Reading of it is not required and I try my best to explain the context, but if you're interested, both volumes can be found here.

EDIT: This story was written over two and a half years, beginning in 2013. You'll probably notice the difference in writing as the chapters progress.

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

King Sombra came from an old age, a time where darkness and evil were prevalent across the land. The Princesse's power and influence were weaker in those days, for the land of Equestria was divided amongst many kingdoms of lesser Princesses and Princes. But out of all their ruling neighbors, The Four Shepherds held the most power of all, even threatening Celestia and Luna's kingdom. However, all of that changed when they vanished for a thousand years, ushering in a new era of peace and prosperity. Until that is, when the Crystal Kingdom reappeared, along with one of the Shepherds. King Sombra, however, was thankfully vanquished swiftly, but the following peace of his defeat would not last as long as anypony might think. A new force sets its eyes on the recently coronated Princess Twilight Sparkle, one that seeks to restore a lost heritage and remind the land of who is the true owner of the night. For when one evil is smitten, another appears in its place. And King Sombra was only the first in line.

Set before Season 4

Note: Dark tag is meant for Light Dark

Special thanks to my editor Ladrian for his diligent and superb work. I wish I had him when I first started this story because maybe then the early chapters would have been much better.

Special thanks to Stanku for revisions and prereading this story. It would be at a much worse state had it not been for his detailed opinions to each and every chapter, and letting me know where I can improve.

10/2/2014 : Woah... it's on the featured list... *cue squealing and fist pumping* THANK YOU ALL SO MUCH!

A Metroid crossover.

After destroying the X, the Galactic Federation charges Samus with treason and hunts her down. While running from the Federation, Samus manages to escape but ends up crashing in Equestria, far from any explored sector in the universe and with no way of returning home. Can the most feared bounty hunter in the galaxy adapt to a land full of talking, magical ponies who think friendship is magic?

Some notes:

1. This takes place after Metroid Fusion, which is the last game in the Metroid chronology/timeline so far. It also takes place after season 2 of My Little Pony: Friendship is Magic.

2. Samus crash lands on Equestria and meets the mane 6. I'll try to not make it too cliche. Also, no ponified Samus (at least, not planning to).

3. In this story, Samus is a Federation runaway. They are hunting her because she destroyed the X parasites in Fusion and they wanted to research on them (I recommend checking the Metroid Wikia for reference).

4. I'll take the 'Tragic' as not so tragic. Don't expect deep depression from this story.

5. I'm open to ideas! Any review/comment is greatly appreciated. Feeding my ego will increase the chances for updates!

6. Any story inspired or ripped off from this story WILL catch my attention. Please tell me if you are going to write one, so I can read it!

Without further ado, enjoy!

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Original artwork by johnjoseco. DA page
All I did was paste Samus.

Inexperience is a foreign concept to Celestia. At least she thinks it is. Right up until the moment a rash decision leaves her with a student who is a dozen years younger than what she's used to.

Enjoy.

The past always comes back to haunt the present, there is no escaping the inevitable. For decades, Celestia has kept a secret from her student. A secret she made out of pain, and through pain will be revealed for all to see; for Twilight Sparkle is the secret daughter of the Sun.

Now, there will be consequences.

Consequences, they come in all shapes and sizes for every decision. For every action there is an equal and opposite reaction. These words are lessons that Princess Celestia should know, bits of wisdom she practices in her rule of Equestria. How is it then, that when faced with a decision, she chooses the one that would inevitably bring the most pain? How is it that she couldn’t bear being recognized as the mother of her child? And why? Twilight Sparkle is about to find out.

Disclaimer: (I do not own the picture; Title Picture owned and designed by KitsuneHino; Source: http://mel-rosey.deviantart.com/art/By-my-side-364777307) (I do not own any of the characters, places, events, etc. outlined in this fanfiction, MLP FiM does under Hasbro, give them the credit.)