In a strange turn of events, an experiment involving Discord goes wrong, and a human scientist gets dumped in Equestria. What can the ponies do, but watch as their world is turned upside down.
A human soul is stuffed into King Sombra's body. Having no idea what's going on, and thinking he is in some kind of coma, he just casually strolls into the Crystal Empire.
Magic in Equestria is universial. It's the force that makes the plants grow, the weather change and the stars move. For one individual, however, it's something to overcome.