Zeus lived on Mount Olympus. So did a bunch of other gods. Zeus had a wife in Mount Olympus. Her name was Hera. Zeus had many other wives, too, and Hera was jealous of them. One day Zeus went down to earth. He was with a girl named Iou, when he saw Hera coming, and quickly turned Iou into a cow to protect her. But Hera was not so easily fooled. She tied the new cow version of Iou to a tree of hers, and instructed her hundred-eyed creature to guard Iou with all his hundred eyes. He closed fifty of his eyes to rest, and kept the other fifty open. There seemed to be no way to get by the beast without him seeing you. Zeus instructed Hermes, the most cunning of all the gods, to free Iou. So he went to the beast, and began to tell a long story with no beginnng and no end. Fifty of the beast’s eyes began to close. Then the other fifty eyelids started to droop, and he was asleep. Hermes sealed his eyes shut in eternal sleep, and freed Iou.