In "Harry Potter and the Deathly Hallows", Mundungus has managed to get out of prison, but the circumstances are unclear. He is Confunded by Snape, and gives the idea of using the Polyjuice Potion and six Potter decoys to the Order and helps with the escort of Harry from Privet Drive. He travels with Mad-Eye Moody on a broomstick as one of the Potter decoys. During the flight from Privet Drive, he flees when Voldemort himself shows up. It is later revealed by Kreacher that, included in the property he stole from 12 Grimmauld Place in the previous book was a heavy locket from the drawing room. That locket was the Slytherin's locket Horcrux. Then Kreacher is sent by Harry to capture Mundungus, who reveals that Umbridge took the locket from him under threat of arrest.