The Ritual of Chüd is a battle of wills, and is the only way to defeat the creature It.
Bill Denbrough first battled It with the Ritual with advice that was given to him by Maturin. The ritual is a psychic battle in which the two forces duel with their wits. The children believe that the metal silver has supernatural abilities, as seen in numerous monster movies. Because the children believe it, it becomes real and is a chief weapon used in the ritual. Because Beverly Marsh is good with a slingshot, they injure It the first time when Beverly shoots a chunk of silver into Its skull. The group thinks that they killed It, but they can't be sure, so they make a pact to return to Derry should It ever return. It was finally destroyed in the second Ritual of Chüd by the adult Bill Denbrough, Richie Tozier, Beverly Marsh, Eddie Kaspbrak (although he was killed by It) and Ben Hanscom.