We all know the story of how the Princess’ young student and five friends defeated Nightmare Moon and brought Princess Luna back to our lands. But what if the tale were false? What if the young Twilight Sparkle on the event of her entrance exam had not been rescued by Princess Celestia, but instead lost her mind among the power of her youthful surge and had to be sent away, far away before she could destroy all of Canterlot with her newfound power. Now the feral unicorn prowling the Everfree Forest only vaguely remembers her past, slipping away from constant terrifying attempts to capture her.

And she is beginning to remember what true power felt like.

Editors include: Peter, Justin, Featherprop, Mitch H, and Bad Horse
Featured on Equestria Daily
Reviewed by Chris on One Man's Pony Ramblings and by Paul Asaran on his review blog
Now with a TV Tropes page

Physical books are available on Lulu.com
Monster in the Twilight (Paperback) 272 pages
Monster in the Twilight (Hardback)

A not so standard human-in-Equestria story including but not limited to: democracy, tequila, and robots.

Things escalate from there.

TV Tropes page

Now translated into Korean

A 'Know your Star' story; only with your favourite ponies getting unneeded hassle and lies told about them. Won't this be fun? Probably not... But hey, everything can't be seriousness all the time, so let's take a load off and just pester some ponies, and Spike for good measure.

The never ending adventures of Know Your Mare march on and on and on.

Comic: http://ladlordblack.deviantart.com/favourites/#/d53s1hc
Animation: Part 1: http://www.youtube.com/watch?v=B_c7CPLlzO8&list=LLAaWYxICqZHBI2hBIxg2oEg&feature=mh_lolz
Part 2: http://www.youtube.com/watch?v=hqYTZ1TKNfk&feature=g-u-u
Picture: http://luna-is-best-pony.deviantart.com/art/Know-Your-Mare-314464512