Harry Potter and the Goblet of Fire - 4 by JK Rowling

"Eternal glory! That is what awaits the student who wins the Triwizard Tournament."

There is only one catch: Harry Potter isn't old enough to enter. Yet, when the Goblet of Fire selects the champions, his name is inexplicably called.

Now, Harry must face dragons, dark wizards, and three deadly tasks with the whole world watching. But the tournament is merely a distraction. Someone inside Hogwarts wants Harry to win... for a much darker purpose.