"The Goblet of Fire" is the fourth book in the Harry Potter series by J.K. Rowling. It follows Harry Potter as he unexpectedly becomes a competitor in the dangerous Triwizard Tournament, a magical competition between three wizarding schools: Hogwarts, Beauxbatons, and Durmstrang. Throughout the tournament, Harry faces various challenges and uncovers a plot involving the dark wizard Voldemort. The story explores themes of friendship, bravery, and the complexities of growing up in a world filled with magic and danger. The book culminates in a dramatic confrontation that changes the course of Harry's life.