In Dumbledore's book, Hermione identifies a symbol they had seen worn by Xenophilius Lovegood, father of Luna Lovegood. They visit him and are told the symbol represents the mythical Deathly Hallows: the Elder Wand, an unbeatable wand; the Resurrection Stone, which can summon the dead; and an infallible Invisibility Cloak. As Xenophilius acts strangely, the trio realize that he has called Death Eaters to catch them in exchange for Luna's freedom, as she had been captured. The three escape, and Harry deduces that Voldemort is hunting the Elder Wand, which had passed to Dumbledore after he defeated Grindelwald. Harry deduces that his own Invisibility Cloak is the third Hallow, and his Snitch contains the Resurrection Stone.