Throughout the four previous novels in the Harry Potter series, the main character, Harry Potter, has struggled with the difficulties that come with growing up and the added challenge of being a famous wizard. When Harry was a baby, Voldemort, the most powerful Dark wizard in history, killed Harry's parents but mysteriously vanished after unsuccessfully trying to kill Harry. This results in Harry's immediate fame and his being placed in the care of his muggle, or non-magical, Aunt Petunia and Uncle Vernon, who have a son named Dudley Dursley.
Harry enters the wizarding world at the age of 11, enrolling in Hogwarts School of Witchcraft and Wizardry. He makes friends with Ron Weasley and Hermione Granger and is confronted by Lord Voldemort trying to regain power. After returning to the school after summer break, students at Hogwarts are attacked after the legendary "Chamber of Secrets" is opened. Harry ends the attacks by killing a Basilisk and defeating another attempt by Lord Voldemort to return to full strength. The following year, Harry hears that he has been targeted by escaped murderer Sirius Black. Despite stringent security measures at Hogwarts, Harry is confronted by Black at the end of his third year of schooling, and Harry learns that Black was framed and is actually Harry's godfather. Harry's fourth year sees him entered in a dangerous magical competition called the Triwizard Tournament. At the conclusion of the Tournament, Harry witnesses the return of Lord Voldemort to full strength.
