First Thief crossover, yay~

CONTAINS STUPIDLY GOOFY COMEDY, FOURTH WALL BREAKING, TWILIGHT SPARKLE HAVING MENTAL BREAK DOWNS, AND IMMINENT RAGE COMING FROM THE READERS WHO WANT SOMETHING SERIOUS.


Garrett, AKA "The Master Thief," has had a life full of thieving, betrayal, shadows, and secrecy. But what happens when he is thrown into the world of Equestria, the world of giving, friendship, light, and sharing?
Hilarity insues, that's what happens.
However, when a new threat approaches Equestria, the Master Thief is forced to act as a bodyguard for the Elements of Harmony as they save Equestria yet again. Armed with a ruby that has the power to turn him into a pony at will, the experience, and a certain group of three fillies that will buck your teeth in if you mess with him, it should be a walk in the park.
…Right?
Wrong. Unwilling to call himself a hero, Garrett has as much difficulty trusting himself to do the right thing as he does the familiar enemy. Can he survive the constant attacks from the enemy he has known so well, and has hated so much? Will he survive all the brightness in Equestria, when all he's ever known was the shadows? What happens when a certain relationship starts to form within his responsibilities? Will he cope with his altered personality, which turns him into a joke-cracking, 4th Wall breaking psychopath that loves cupcakes? Will I ever stop asking the reader rhetorical questions as if it's building suspense?
All answers are unknown. Especially that last one.
Friendships will spawn, blood will be shed, and Garrett's dark past will be put to light. Even if he doesn't remember it himself.
Even if it will damage him beyond recognition.