Planispheric Disc

The Planispheric Disk was used by the Spanish Conquistadors to navigate unknown waters, or to hide their cargo. There is one in Crystal Cove that has been divided into pieces and the pieces are sought after by several factions). (Professor Pericles, Fred Jones, Sr., and Mr. E) The disk is supposed to be a key to finding the Cursed Treasure left in or near Crystal Cove by the conquistadors.