This is the first book of The Humanity Within Trilogy. Its sequel is What I've Done.

I wasn't always like this, a monster, running through the woods on an alien planet. I was once a man. I had dreams, a girlfriend, and a great job.
Then They came. In the middle of the night, They scooped me from my home, and... changed me.

Now I'm a beast, a demon the like of which the world I've become stranded on has never seen before, scraping by on the fringes of society, hiding from the natives, and doing my best to avoid notice.

After all, who could ever be friends with a monster?

Cover Image done by the very talented PaintSplotch! You can find his FimFic account here.
And here is his DeviantArt Account!
Now 100% approved by Twilight's Library!
Mad props to my prereaders:
ThatPonyWithASword.
Admiral Applejack.
JXWheeler

Isolated from her friends and taken prisoner in the middle of a war, Twilight must deal with the very real dangers of being percieved as an enemy as well as the nightmares of her arrival on 'Earth'. Can she overcome her own fears and the fears of her captors? Will the wayward unicorn's assistance be a boon or a curse to the 'humans?' Most importantly, will she ever find her way home?

"In short, it's a story of friendship and plasma rifles, with the emphasis on the friendship. The characters are well written, the XCOM setting is fleshed out very well, and the story is compelling. If you love XCOM, you'll love the story, but even if you've never heard of it, it's more than worth giving the first 3 chapters a read.

There's excellent action later on, but the real strength lies in the collision between the friendly and naive world of Twilight Sparkle and the desperate world of humans fighting a losing war for survival and willing to do anything to turn the tide."

--Arzoo

(XCOM/FiM crossover)
(Cover art commissioned by a friend and created by the magnificent FoxInShadow!)
(Original cover art by the amazing Carnelian can be viewed here!)
(Gore tag for blood and some violence)
(Many thanks to the studius OminousTen, Arzoo, xXFluttershyForeverXx and finally Setokaiva for giving my rambles a once-over)
(Now with it's own TV Tropes page! Get to tropin' folks!)

WANTED:

The newly crowned Princess Twilight Sparkle has set up a bold new initiative to discover new magic, and is sending out an open call to the unicorns of Equestria to apply for her research team. No experience in magical theory or research necessary. Enthusiasm and out-of-the-box thinking a must. The Equestrian government is not responsible for any physical, emotional, or magical trauma experienced during the course of the project or the application process.

Cover art by Page Turner

After the changelings' failed invasion of Canterlot, Twilight tries to soothe some of Ponyville's rampant paranoia by casting a spell to prove there are no imposters hiding in the town. But her spell leaves her in an alien body, facing a mob of angry ponies who just don't believe her when she says she is Twilight Sparkle.

Or, at least, she was Twilight Sparkle, anyway...

Featured on Equestria Daily, 2/17/13
Cover art is by the awesome and amazing Conicer

In Equestria's far future, one thousand and five years after the return, a dysfunctional group of argumentative ponies must quest to defeat the most dangerous enemy of Equestria to ever live; the malevolent Lord Second, one of the only known members of the race of elder gods known as the humans, and the ancient cult who worships him, the Brotherhood of Man.

An over-the-top surrealist comedy, with slight serious elements. Expect a steady decline into insanity.

Cancelled, due to reasons of severe cranial trauma

Now with audio reading and prequel story, Shades of Grey, by Draven Eclipse.

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.

Everyone has that one friend that they've known since childhood, that one friend that they'd do anything for, that one friend that means the world to them. For me, that friend was Luxurious Locks, the mare that runs the most prominent hair-care product company in Maretropolis. We were the best of friends since childhood, and whenever one of us was down, the other would be there to help out.

But I guess some things don't last forever.

Luxi has disappeared, and she's been missing for over a month. To make matters worse, a deranged mare named the Mane-iac has been attacking the city with no clear motive.

Little did I know that she was looking for someone, too...

This is an HiE Anthro one-shot taking place in the Power Ponies universe, so the Mane 6 are not the Power Ponies. It also goes without saying that this is not related to any of my previous stories.

Now with an Act 3.5 written by Naughty_Ranko! LINK
Pre-reader/Creatve Consultant: Zamairiac

Cover art by me.

The deleted comments were made by me and Zam during the story's development stage, so don't worry about it.

Featured on 5/28/14! SQUEE!

In an Equestria without the Princesses or the guidance of the Elements of Harmony, Twilight Sparkle is a researcher on the cusp of her greatest discovery and simultaneous fall from grace while finding love at the same time.

Initially written for the May/June Twiluna contest. Proofreading and idea-seeding credit goes to Pearple Prose Rated Teen for language and implied sex/violence.

A changeling who has lived at the side of an Equestrian mare for most of his life finds himself in the middle of the changeling invasion of Canterlot. He has no idea who the invading queen or hive are, and just wants to stay where he is, and more importantly, who he is.

The spell that ends the invasion doesn't discriminate, though. With his old pony form irreversibly stripped away, and the whole kingdom out to hunt his kind, he tries to keep his family together, and struggles to find his place in the world.

Please comment! Even now, I'd love to hear what people think as they read through

EPUB download
PDF download

Czech version:
Flitter on Google Docs translated by Draim (published at bronies.cz)

Russian version:
Флиттер on ponyfiction.org translated by repitter.
Audio book on YouTube by Diogenus.

Spanish version:
Flitter on DeviantArt, translated by SPANIARD KIWI.

Discord has been defeated, and Twilight and her friends are eager to get back into the swing of everyday life. Shortly after the end of the victory ceremony in Canterlot, Celestia asks a favour of Twilight, to put Discord back where he belongs, and the ever-faithful student accepts.

By noon of the next day, however, Twilight has both a startling revelation, and a terrible new secret to keep. Otherwise, the last thing she sees may in fact be the statue garden.

Acknowledgements
Edited and test-read by DreamVirusOmega (aka PoisonClaw) and Nonagon
Heavily inspired by and adapted from Garden Party: Petrified by PumpkinHipHop
Cover art used with permission by DocWario