Equestria's mafia is run by the most unlikely of gangsters.

Edited by: p0n00b.

The Equestrian Empire will fall.
Those are the words of Starswirl Stabledon—the first and greatest psychohistorian. For he has applied his science to galactic society and, in doing so, has seen the truth. The mighty Empire, which has stood for over ten millennia, will regress, break up and succumb to chaos. Lacking unified leadership, twenty-five million equine worlds will turn against each other and unleash a dark age without foreseeable end.
Skepticism over Stabledon’s findings leads him to be targeted. His predictions have placed not only him, but also his large group of followers in jeopardy, setting them on a millennium-long path that will change the future forever—a path that must be traversed if harmony is to survive.

Note: This is a crossover that takes the characters of My Little Pony: Friendship is Magic and places them in the setting of Isaac Asimov's Foundation Series. The reader does not need prior knowledge of Foundation to understand this crossover.

Bioshock meets MLP in this psychological thriller, where Celestia's new faithful student, Siren Song, must discover the truth behind the city beneath the waves.

Beautiful, gifted, and faithful student of the Princess of the Sun, Siren Song has very nearly everything a pony could want. Sometimes though, in the twilight hours, Siren can see the sadness in her mentor's eyes. Once, ponies whisper, the Princess had another student named Twilight Sparkle, but she left Equestria, never to return. The pony who has a perfect life just needs one more thing—to convince Twilight Sparkle to come home so the Princess will smile again. But when Siren arrives in pursuit of Twilight, she soon finds herself trapped in a city of horrors, with only its monstrous denizens for help.

Now with a TV Tropes page!

Twilight Sparkle, Princess Celestia's most prized and faithful student, is being sent to Ponyville to learn about the magic of friendship.

This is going to be fun!

A spinoff of Letters From A Disgruntled Friendship Student by milesprower06.

Luna is no longer Nightmare Moon, and has returned to rule Equestira once again, but not everypony is so ready to forgive. When a secret organization kidnaps the Elements of Harmony and threatens to murder Luna, Rainbow Dash must go back into the memories of her ancestor Firefly, to learn the ways of the Assassins to fight this new terror and save the new princess, as well as her friends.

Credit to he4rtofcourage for the title image.

Twilight told her friends of her adventures in the Human world, but she didn't tell them everything. One dark secret haunts her still.

Hamburgers are delicious.

In the wake of Chrysalis' failed invasion, a different hive breaks tradition and steps into the light to open relations with Equestria. The ever eager scholar, Twilight Sparkle, uses this truce as the perfect opportunity to learn more about this enigmatic race. Unfortunately, or maybe fortunately, she will learn all there is to know about what it means to be a changeling.

But will Twilight lose herself in the hive, or will she regain what she has lost? Only time will tell.

Featured on 9/24/13

My first featured story! You guys are awesome.

Story readings and cover art by Luminescent Skies: Click here for some audio novel treatment

My Editor in Chief: Cloud Hop

Twilight Sparkle, Princess Celestia's most prized and faithful student, is being sent to Ponyville to learn about the magic of friendship.

And she's not happy about it.

Hear what Celestia has to say back! Check out the spinoff:
Responses To A Disgruntled Friendship Student by keaton-furman-prower

Still want more? Have a multiverse spinoff by MixMassBasher, my contributing writer for Seasons 5-9.
Letters From Across the Disgruntled Multiverse

Editing by Neko Majin C.

Disclaimer:
The following is a work of parody, and is protected as Fair Use under section 17 U.S. Code § 107 of US Copyright Law. My Little Pony: Friendship is Magic and all affiliated characters are property of Hasbro Inc.