Harry is a prisoner, and Bellatrix has fallen from grace. The accidental activation of Bella's treasured heirloom results in another chance for Harry. It also gives him the opportunity to make the acquaintance of the young and enigmatic Bellatrix Black as they change the course of history.

Harry is framed for the mass murder of Muggles after he deals Voldemort a stunning blow. He is sent to Azkaban where he and his cell mate, Bellatrix Black, begin to discover Harry's heritage and his potential power as they plot to escape.