Harry Potter and the Polyjuice Disaster

Halloween, 1981. The Potters' burning house in Godric's Hollow is the reason for the chaos. But Remus Lupin is the dead man on the stairs, not James Potter. James and Remus had switched places for the night so that Lily wouldn't know he'd gone...but it was never supposed to end in death. Now he and Sirius are left to raise Harry alone. Will go through Years 1-3 at Hogwarts.