Inheritance - Harry x Fred x George

I've been reading a ton of these books and I'm like in love with them, so I'm gonna write my own. So yeah. Harry comes of age, gets his creature inheritance, Dumbledoor, Molly, Ron, Ginny, and Hermione are evil(idk I just like it). Turns out he's not really 'Harry' and yeah. Just read the book. Or don't. I don't reall...