I have to admit that I cringed horribly throughout the Gringotts scene (mostly because it's almost impossible for anyone to write an interesting "Heir of the Founders" story anymore), but the rest was very good. I like your unique perspectives on werewolves, though it does make me wonder how it became identified as a curse in the first place. Biting adults, perhaps? I wonder how you'll handle Remus...
Looking forward to more.