The Prisoner of Azkaban

*The Prisoner of Azkaban* is the third book in the Harry Potter series, where Harry returns to Hogwarts School. This installment introduces Sirius Black, presumed a dangerous criminal, believed to be after Harry. As Harry uncovers the truth, he learns Sirius is actually his godfather and innocent, and that a betrayal led to his parents' deaths. The story explores themes of trust, identity, and the importance of understanding reality beyond appearances. Harry also learns about the magical creature, the Hippogriff, and faces new challenges, all while discovering more about his past and the complex wizarding world.