‘Be patient, and listen; for if you forget my words, you will indeed die. You must go northward to the country of the Hyperboreans, who live beyond the pole, at the sources of the cold north wind, till you find the three Gray Sisters, who have but one eye and one tooth between them. You must ask them the way to the Nymphs, the daughters of the Evening Star, who dance about the golden tree, in the Atlantic island of the west. They will tell you the way to the Gorgon, that you may slay her, my enemy, the mother of monstrous beasts. Once she was a maiden as beautiful as morn, till in her pride she sinned a sin at which the sun hid his face; and from that day her hair was turned to vipers, and her hands to eagle’s claws; and her heart was filled with shame and rage, and her lips with bitter venom; and her eyes became so terrible that whosoever looks on them is turned to stone; and her children are the winged horse and the giant of the golden sword; and her grandchildren are Echidna the witch-adder, and Geryon the three-headed tyrant, who feeds his herds beside the herds of hell. So she became the sister of the Gorgons, Stheino and Euryte the abhorred, the daughters of the Queen of the Sea. Touch them not, for they are immortal; but bring me only Medusa’s head.’ ‘And I will bring it!’ said Perseus; ‘but how am I to escape her eyes? Will she not freeze me too into stone?’ ‘You shall take this polished shield,’ said Athené, ‘and when you come near her look not at her herself, but at her image in the brass; so you may strike her safely. And when you have struck off her head, wrap it, with your face turned away, in the folds of the goat-skin on which the shield hangs, the hide of Amaltheié, the nurse of the Ægis-holder. So you will bring it safely back to me, and win to yourself renown, and a place among the heroes who feast with the Immortals upon the peak where no winds blow.’ Then Perseus said, ‘I will go, though I die in going. But how shall I cross the seas without a ship? And who will show me my way? And when I find her, how shall I slay her, if her scales be iron and brass?’ Then the young man spoke: ‘These sandals of mine will bear you across the seas, and over hill and dale like a bird, as they bear me all day long; for I am Hermes, the far-famed Argus-slayer, the messenger of the Immortals who dwell on Olympus.’ Then Perseus fell down and worshipped, while the young man spoke again: ‘The sandals themselves will guide you on the road, for they are divine and cannot stray; and this sword itself, the Argus-slayer, will kill her, for it is divine, and needs no second stroke. Arise, and gird them on, and go forth.’ So Perseus arose, and girded on the sandals and the sword. And Athené cried, ‘Now leap from the cliff and be gone.’ But Perseus lingered. ‘May I not bid farewell to my mother and to Dictys? And may I not offer burnt-offerings to you, and to Hermes the far-famed Argus-slayer, and to Father Zeus above?’