Arcanmagus

Sirius never went to Azkaban, instead raising Harry as his own. Happily ever after . . . except Harry is getting rebellious, Sirius is getting fed up with it, and Voldemort is plotting something BIG. Oh, and there is the small matter of Harry's budding fire powers . . . Not exactly the normal life of a teenage boy, but Harry's never had a chance at normal, has he?