Harry Potter and the Dogfather II: Chamber of Secrets

Harry is about to be a big brother; Sirius is a teacher at Hogwarts; Barbara's got a ring on her finger; Regulus is alive and a self-made billionaire. Everything seems set for a perfect second year...that is, until some "pureblood maniac" starts turning Muggle-borns into statues, and Harry fears his beloved Hermione may be next. (SB/OC, RAB/OC, HP/HG, DM/AG, year 2 AU)