He thought awhile with himself, and remembered Athene's words. He arose aloft into the air, and held the mirror of the shield above his head, and looked up into it that he might see all that was below him.
And he saw the three Gorgons sleeping. He knew that they could not see him, because the hat of darkness hid him; and yet he trembled as he sank down near them, so terrible were those brazen claws.
Two of the Gorgons were foul as swine, and lay sleeping heavily, with their mighty wings outspread; but Medusa tossed to and fro restlessly, and as she tossed Perseus pitied her. But as he looked, from among her tresses the vipers' heads awoke, and peeped up with their bright dry eyes, and showed their fangs, and hissed; and Medusa, as she tossed, threw back her wings and showed her brazen claws.
Then Perseus came down and stepped to her boldly, and looked steadfastly on his mirror, and struck with Herpe stoutly once; and he did not need to strike again.
Then he wrapped the head in the goat-skin, turning away his eyes, and sprang into the air aloft, faster than he ever sprang before.
For Medusa's wings and talons rattled as she sank dead upon the rocks; and her two foul sisters woke, and saw her lying dead.
Into the air they sprang yelling, and looked for him who had done the deed. They rushed, sweeping and flapping, like eagles after a hare; and Perseus's blood ran cold as he saw them come howling on his track; and he cried, "Bear me well now, brave sandals, for the hounds of Death are at my heels!"
And well the brave sandals bore him, aloft through cloud and sunshine, across the shoreless sea; and fast followed the hounds of Death. But the sandals were too swift, even for Gorgons, and by nightfall they were far behind, two black specks in the southern sky, till the sun sank and he saw them no more.
Then he came again to Atlas, and the garden of the Nymphs; and when the giant heard him coming he groaned, and said, "Fulfil thy promise to me." Then Perseus held up to him the Gorgon's head, and he had rest from all his toil; for he became a crag of stone, which sleeps forever far above the clouds.
Perseus thanked the Nymphs, and asked them, "By what road shall I go homeward again, for I have wandered far in coming hither?"