As the sea arose and the winds shrieked, a ship far out from the land could be seen, riding on the crest of the waves and coming closer to the shore. Then its form changed and the fishermen who had dared the weather saw that it was a chest made of carved cedar wood and having hinges of chased gold. It would be almost submerged one minute and then it would appear again, floating bravely on the surf. At last it was tossed upon the rocks, and the fishermen ran to salvage the treasure that some ruthless destroyer had cast out for Medusa to capture if she could. When they reached the chest the fishermen saw a young mother inside it clasping her baby son closely in her arms. It had held a human treasure abandoned to the Gorgon's cruel powers of the sea. They conducted her to their King, Polydectes, of Seriphus, and she told him her story. "I am Danae, the princess of Argos," she said, "but my father, King Acrisius, is afraid of the powers that this little son of mine may develop in manhood. He caused us to be shut up in a frail chest and set adrift among the waves. I pray your protection, O King, for my son, who is strong and of noble birth, until he is able to dare great deeds and reward you for your kindness." No one could have resisted the pleading of Danae, so lovely and holding her baby in her arms. She remained in Seriphus and her son, Perseus, grew to a boy and then to a fearless, daring young hero. All this time Medusa was working sorrow on land and sea. She had once been a beautiful maiden of the coast of Greece, but she had quarreled with Minerva, the goddess of wisdom, and for this act the gods had changed her into a Gorgon. Her long, curling hair was now a mass of clustering, venomous serpents that twined about her white shoulders and crawled down to her feet where they twisted themselves around her ankles. No one could describe the terrible features of Medusa, but whoever looked in her face was turned from a living thing to a creature of stone. All around the cave where she lived could be seen the stony figures of animals and men who had chanced to catch a glimpse of her and had been petrified in an instant. Above all, Medusa held the ruthlessness of the sea in her power. Those captains who had cruel hearts abandoned their enemies to the waters and she crushed them with her billows. So it seemed to Perseus that his first adventure on coming to manhood must be the conquest of Medusa, the snaky haired Gorgon, and the gods approved of his decision and met in counsel on Mount Olympus to decide how they should help the young hero. "I will lend Perseus my shield for his adventure," Minerva, the wisest goddess of them all, said. "And I will lend Perseus my winged shoes," Mercury, the god of speed, decided, "to help him hasten on his brave errand." Even Pluto, the king of the dark regions beneath the earth, heard of Perseus' determination and sent him his magic helmet by means of which any one was able to become invisible.