Harry Potter and the Goblet of Fire
At Halloween, the Goblet of Fire picks Fleur Delacour from Beauxbatons Academy, Viktor Krum, the Bulgarian seeker that played at the Quidditch World Cup, from Durmstrang Institute, and Cedric Diggory, Amos Diggory's only son from Hogwarts to compete in the tournament. Unexpectedly, however, it also chooses Harry as a fourth champion. Harry's being chosen magically binds him to compete, forcing him to be an unwilling participant in the Tournament. Very few people believe Harry's protests that he did not put his own name in.