For centuries, the human and Equestrian kingdoms have been on perfectly positive terms - there hasn't been a single source of conflict that could possibly jeopardize their relations.
That is, until now. Obsessed with finding a way to harness the magic so inherent to the Equestrians' lives, a reckless scientist by the name of George Trestale conducts some poorly-thought-out experiments that end up landing him in hot water. Exiled from his own kingdom and stuck with powers that don't work properly, he's forced to travel Equestria and find someplace he can settle down. However, when his hard-to-control magic starts giving the impression that he's trying to terrorize the place, that proves to be easier said than done.
This is a different take on the main premise of my rather mediocre first story, George Trestale, God of... Something. (Seriously, don't bother. It's not good.) These stories share no continuity with each other, so there's no required reading beforehand.