Pinkie Pie awakens one morning to find a strange lump on her back. She doesn't think it's a big deal, but as time goes on it grows and bizarre changes begin to take place inside her.

In Ponyville, something is stalking the citizens. Can anypony stop what's happening before it's too late and their world is irrevocably changed? Of course, you can only save the day if the danger hasn't found you before you even know it's there.

Written for Write-Off's Nightmare Night 'transformations' contest. Is meta-horror a genre? Well, it is now.

Featured on EQD - 25th March 2014

Now with a full-cast audio reading by TheLostNarrator: SUCH WONDERFULNESS WE HAVE NEVER YET SEEN!

Strange things happen in Ponyville. Foals start to disappear; their parents and siblings, struck by grief, will resort to every mean to find the cause. Some of them blame timberwolves; some blame the zebra living in the forest. Some of them even blame their fellow ponies. None of them, however, suspects a little filly suffering from insomnia...

Click here for sequels reading order, TVTropes page and other info.
Part of the New Fimfiction Starter Kit

Beware of spoilers in the comments!
Inspired by Bootsy Slickmane's Insomnia.
Preread by Bootsy Slickmane
Translated to Russian by repitter:
🇺🇦Ponyfiction.org link🇺🇦
🇺🇦Gdocs link🇺🇦
Chinese translation by MLM
Russian reading by Demicorn Masterrace

Mystery. Love. Magic. Murder. Truth. These are all important elements in the murder mystery Fluttershy has written, and is now asking Twilight to read. But the novel stars 'Twilight Sparkle', and she wrestles with the metafictional dissonance involved in reading a novel about herself and her friends. Twilight must do her best to solve the mystery, reconcile her own feelings about this ordeal, and figure out just what Fluttershy is trying to say by writing all of this in the first place as the lines between fiction and reality begin to blur.

This is a thematic crossover with the visual novel 'Umineko No Naku Koro Ni.' No prior knowledge of Umineko should be necessary.
Cover art commission done by SynCalio

Oh, Marble, Sweetie. How long can you be like this? If you can't help yourself, I'll have to do it for you, but you may not like who you become.

Art by Violarules

Three years after the 'Cupcakes Massacre', Pinkamena Diane Pie is held in the Canterlot Prison for the Mentally Unbalanced. The state declared that ponies like her were beyond treatment or reason... but one doctor took interest into the mare's case and wanted to crack open her psyche in order to better understand her actions. Soon, a mental game of cat and mice takes place; in which you never know when one will be cornered.

~ Sequel: Dysphoria

[Cover image by LavosVsBahamut]

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.

Humans.

Truth or myth? Ancient lost civilization or just an old pony's tale?

No pony has ever seen one, and most haven't even heard of them. But Lyra knows that these wonderful creatures are more than just old legends, and she's going to find out... and possibly drive her roommate insane in the process.

Okay, I don't know if anyone can hear this, or read this, or whatever, but I'm trying my best to use Pinkie Pie's legendary fourth-wall-breaking powers to try and get a message out.

If you can hear this, I need help. I'm in Equestria, and man, this is strange. But I'm also stuck in Pinkie Pie's body, for some reason.

Yes, it's just as weird as it sounds. And now, I need your help... because all the ponies in this town think I'm crazy!