During the summer before Harry's third year mass murderer Sirius Black escapes Azkaban. In order to catch the criminal and protect the students Minister Fudge places Dementors at Hogwarts. But that's not the only thing he does. A task force from America, specialized in catching high priority and dangerous dark wizards, is brought in. The reason for this? Sirius Black's long forgotten older brother leads it. What will happen when new Black's are reintroduced to Wizarding Britain? How will this change the timeline we all know and love? Find out in book one of the Return to Black series 'Harry Potter and the Curse of Knowledge'.All Rights Reserved