In "The Return of the King", Treebeard is still at Isengard when Aragorn, now King of Gondor, comes there after the victory over Sauron. Treebeard admits that he let Saruman go a few days before. Gandalf gently chastises him saying that Saruman might have persuaded Treebeard to let him go by "the poison of his voice." Treebeard delivers the keys of Orthanc to the King. Finally, Treebeard says farewell to the elf-rulers Celeborn and Galadriel "with great reverence" and the words "It is long, long since we met by stock or by stone".