The escape of Sirius Black--one time friend of Harry's parents, implicated in their murder and follower of "You- Know-Who"--from Azkaban, has serious implications for Harry for it would appear that Black is bent on revenge against Harry for thwarting "You-Know-Who". Back at Hogwarts, Harry's movements are restricted by the presence of the Dementors--guards from Azkaban on the look out for Black--however, this doesn't stop him throwing himself into the new Quidditch season and going about his normal business--or at least attempting to. Despite warnings Harry is determined to get to the bottom of the mystery surrounding Sirius Black--how could this one-time close friend of his parents become the cause of their deaths?

And why does the presence of the Dementors have such a devastating effect on him, causing him to hear the last moments of his mother's life?

7 Volumes