Harry Potter and the Prisoner of Azkaban - Pg 302

Harry slept badly. First he dreamed that he had overslept, and that Wood was yelling, "Where were you? We had to use Neville instead!" Then he dreamed that Malfoy and the rest of the Slytherin team arrived for the match riding dragons. He was flying at breakneck speed, trying to avoid a spurt of flames from Malfoy's steed's mouth, when he realized he had forgotten his Firebolt. He fell through the air and woke with a start.