Not all humans who arrive in Equestria are friendly. Sometimes, they're total assholes.
Sometimes, they're trolls. Like these guys.

When you're two dudes who are cosplaying as Tobi and Yoshimitsu and are labelled Public enemies 1 and 2, sometimes, you just gotta go on a road trip.

Loosely inspired by F*ck it I'm having fun. Pic drawn by Genbu, who's kind of the coolest.

Edit: Huh, featured on 5 May 2014. Wasn't expecting this.

Equestria is growing, and magical savant Twilight Sparkle is disgusted by the crime and corruption this change has brought. Her life is changed forever when she discovers the Death Note, a notebook with inexplicable and deadly powers. She uses this book to pass judgement on those she deems unworthy of life, aiming to create a perfect world free of crime. But when the two Princesses put their best pony on the case, a mysterious detective known only as L, a psychological game of cat and mouse erupts between the two.
Comments contain spoilers. Artwork by blu-red, opening by Anon3mous. Now with its own TV Tropes page.

Mort, also known as the Pale Pony (of Death), has been tasked to take time off from his rigorous duties of reaping souls. Seeking guidance, he is directed towards the town of Ponyville, to learn about the magic of friendship from Twilight Sparkle and her friends. All he needs to do is keep his true nature a secret. That shouldn't be too difficult...right?

Special thanks to Specter-Von-Baren and Pyrite Foolsgold for their help in proofreading and editing this story, as I really needed it. Additional thanks to Pilate, Chuckle5, Unimpressive Vagaries and Admiral Biscuit as well! Couldn't have done it without all their help!

Credit for the title card goes to Siansaar, AKA Carnifex.

For another excellent take on Mort, check out Sip's version!

Newly married Princess Cadance and Shining Armour return home after their honeymoon happy to be home again and ready to help out around the castle however they can. However, when Cadance discovers a small creature hiding in her room, she has a choice to make. Turn the changeling in to the royal guard or keep it a secret.

Warning: This story is made mostly for Dwaaa'a and will likely hit you in a feel or two.

A letter sits upon a table where it had not just a moment before. A golden glow lifts it as it unfurls in front of the reader.

Let us see here, how to begin?

Well, I suppose the best way to do so is with introductions. I am Prometheus and while I was, as one might say, tied up for quite some time I noticed your world. I have to say it's quite interesting, but unfortunately stagnant as well. So Miss Celestia I, being the patron of progress that I am, have sent someone your way. He is not a creature native to your world, a species I personally have a great deal of interest in, they're ambitious little scamps. I am bestowing a gift upon him as I send him, one he will in time learn to master. It is my hopes he brings progress to your world, but as the past has proven on many an occasion the best intentions can at times have the worst effects. We'll just have to see how it goes won't we.

Sincerely,
Prometheus

Ha, not as smart as the bastard thinks he is. I managed to snag the paper from him. So "Miss Celestia" my name is Coal and apparently I'm supposed to stir up some dirt. I'll admit I know just as much as to what is going on as you do, but if he's the Prometheus I'm thinking of, things might be a little more complicated than he'd let us believe. Crap, he's coming back. Ummm... Why did I just waste time writing Ummm?

Winter is coming... I'm disappointed with myself if that's the best I can come up with.