In this installment, Harry Potter begins his sixth year at Hogwarts School of Witchcraft and Wizardry. Lord Voldemort’s power is growing stronger, and the wizarding world is facing dark times. Dumbledore starts to personally guide Harry, showing him Voldemort’s past in order to prepare him for the battles ahead.
Harry also discovers a mysterious old Potions textbook filled with notes from the “Half-Blood Prince”, which helps him excel in class but leads him into dangerous secrets. Meanwhile, teenage romance and jealousy add tension among friends.
The story builds toward a shocking betrayal and a heartbreaking tragedy, setting the stage for the final battle between Harry and Voldemort.