Harry's fourth year at Hogwarts is marked by the Quidditch World Cup and the Triwizard Tournament, in which student representatives from three different wizarding schools compete in a series of increasingly challenging contests. However, Voldemort's Death Eaters are gaining strength and create the Dark Mark - giving evidence that the Dark Lord is ready to rise again. In the unsuspecting lives of the students at Hogwarts, the competitors are selected...

Part 1 begins as Harry, Ron and Hermione set out on their perilous mission to track down and destroy the secret to Voldemort's immortality and destruction--the Horcruxes. On their own, without the guidance of their professors or the protection of Professor Dumbledore, the three friends must now rely on one another more than ever. But there are Dark Forces in their midst that threaten to tear them apart. Harry's only hope is to find the Horcruxes...

Year three at Hogwarts means new fun and challenges as Harry learns the delicate art of approaching a Hippogriff, transforming shape-shifting Boggarts into hilarity and even turning back time. But the term also brings danger: soul-sucking Dementors hover over the school, an ally of the accursed He-Who-Cannot-Be-Named lurks within the castle walls, and fearsome wizard Sirius Black escapes Azkaban.

Harry, Ron, and Hermione, now teenagers, return for their third year at Hogwarts. There they are forced to face escaped prisoner Sirius Black, who poses a great threat to Harry. Harry must overcome the threats of Dementors, outsmart a werewolf, and finally deal with the truth about Sirius and his relationship with his parents. Harry and friends master advanced magic classes, cross time barriers, and change the course of more than one life.