Needed to open the Golden Pyramid in Worlds 4, 5, and 6. One stone for World 4, two for World 5, and two for World 6. Moonstones can be saved for use in a next world. Can be sold for 10 funds or 10 fame, but should nearly always be kept instead. Always found in shrines, including hill shrines. May also be found in desert tombs. They only stack up to 3.