Following Dumbledore's death, Voldemort continues to gain support and increase his power. When Harry turns seventeen, the protection he has at his aunt and uncle's house will be broken. Before that can happen, at Mad Eye Moody's suggestion, Harry flees to the Burrow with his friends, many of whom use Polyjuice Potion to impersonate him so as to confuse any Death Eaters that may attack. They are indeed attacked shortly after leaving Privet Drive; Mad Eye is killed, and George Weasley wounded, but the rest arrive safely at the Burrow. Ron and Hermione decide to accompany Harry, instead of returning to Hogwarts School for their seventh year, to finish the quest Dumbledore started: to hunt and destroy Voldemort's four remaining Horcruxes.