Flaming Actions

A little girl just managed to get hold of a book, and a glimpse of the past. She also needs to fix it... But there are several problems: what about the upcoming war? What with Voldemort on the loose? And what about the Marauders? Well, simple really, get the Golden Trio (and Ginny) to join in! Oh, and becoming Hogwarts' youngest teacher is somewhere in there too.