The Graeae Picture
"...The Graeae were strange women, there were three of them having only one eye for all three of them which they constantly fought over. Perseus hid behind some bushes and watched them. When one took out the eye to give to another Perseus sprang from his hiding place and snatched the eye from them. Then he said, "I have your eye and if you don't tell me how to find the Nymphs of the North you shall never have it back!" So they reluctantly told them how to find the Nymphs of the North. He gave them back their eye and flew off on his winged sandals."