Harry Potter : An American in Hogwarts

Reincarnated into what appeared to be a copy of Earth in the late 20th century, Tyson was already making plans to leverage his knowledge of the future, become absurdly rich, and spend the rest of his life as a laid back billionaire. Then, on his first day at his new school, he saw a skinny black-haired boy with a lightning-shaped scar on his forehead. Turned out...he wasn't just in the past. ... Warning/Credits: This is inspired by a multitude of fics, including and not limited to Voldemort Can't Stop Me From Studying , Soft Magic Sucks , Troll in the Dungeon , and Rebirth in a Magical World . So some plot points will inevitably resemble those. First four chapters are even very similar to sms. If that's something you can't get past, I'd recommend giving this fic a pass.