Harry Potter and the Goblet of Fire · Chapter 33
The Duel in the Graveyard
Harry duels Voldemort in the graveyard, their wands connect in Priori Incantatem, and the shades of Voldemort's victims including Harry's parents urge him to escape.
Outcome
Harry escapes with Cedric's body, and the wizarding world learns of Voldemort's return.