Although Draco does not directly take part in Harry's final confrontation with Voldemort, he influences its outcome. After Harry is struck by the "Avada Kedavra" curse, Voldemort orders Narcissa to verify that Harry is actually dead. She detects his heartbeat, but she lies to Voldemort, knowing that she will be allowed to search for her son if the Death Eaters return to Hogwarts ""as part of the conquering army."" A plot twist reveals that Draco had unwittingly become the Elder Wand's master when he disarmed Dumbledore, even though Draco never actually possessed the wand. The wand's allegiance passes to whoever defeats its owner, so Harry, having taken Draco's wand at Malfoy Manor, became its new master; this prevents Voldemort from using its full power. In the end, it is Narcissa's lie to Voldemort concerning Harry's death that enables the Malfoys to narrowly avoid imprisonment in Azkaban.