The third island (Caspian declares it "Goldwater Island," but Reepicheep proposes the more apt name of "Deathwater Island") where they find a cavern in which there is a pool. Edmund places his sword in the water to measure its depth, only for it to become heavy and fall in the water – causing it to splash over his shoes and produce splashes of gold. There is a body in the water, and they establish that anyone or anything that ends up in the water turns into gold. Caspian later realises that the body in the water is that of Lord Restimar. On the fourth island, they encounter some invisible creatures who give them dinner at a large house. A magician called Coriakin appears after Lucy reads from a magic book, and the creatures are soon made visible again.