Peter has an effect on the whole of Neverland and its inhabitants when he is there. Barrie states that although Neverland appears different to every child, the island "wakes up" when Peter returns from his trip to London. In the chapter "The Mermaids' Lagoon" in the book "Peter and Wendy", Barrie writes that there is almost nothing that Peter cannot do. He is a skilled swordsman, rivalling even Captain Hook, whose hand he cut off in a duel. He has remarkably keen vision and hearing. He is skilled in mimicry, copying the voice of Hook and the ticking of the clock in the crocodile.