If you thought Harry led an adventurous life until now, then think again. Harry’s third year at Hogwarts begins with one weird night—when he inflates a hated aunt, runs away from home on a magical bus, and discovers that an escaped convict is stalking him.

Harry’s hopes of finding peace at Hogwarts are dashed when he realises that Dementors have come to the school, supposedly to catch the convict and protect Harry. But who is the friend and who is the foe? Find out in Harry Potter and the Prisoner of Azkaban.