Ryan O'Connor was a young man with a long career in medicine ahead of him. Was being the operative word, as Ryan has been dead for a long time, only brought back a monstrous bio-weapon that he helped create. Now on his third life, he finds himself in a world he never expected to end up in. How is he still alive, and more importantly, why is he surrounded by ponies?
[Prototype]-MLP Crossover

(Please excuse continuity issues, the story is currently undergoing a rewrite.)