Gorgon's head; and when he saw their dreadful transformation, he fell on his knees before Perseus, and with outstretched hands implored the hero to spare his life. But Perseus forced him to look upon the hideous face of Medusa, and he became a stone image with averted head and supplicating arms. Having thus disposed effectively of his enemies, Perseus covered up his death-dealing trophy, and the wedding ceremonies were resumed. Later he departed with his bride to the country of Polydectes, where that king had been keeping his mother a prisoner until she would consent to marry him. He had long ago believed Perseus dead, and was therefore much astonished to see him appear unharmed and victorious. Hearing of the cruel treatment his mother had received from Polydectes, the young hero determined on a swift revenge. In the presence of the king and his court, he suddenly displayed the head of Medusa; and the whole company, just as they stood, were turned into stone. Then Perseus set sail with his wife and mother for his own country; but before he left he returned to Pluto the magic helmet, to Mercury the winged sandals, and to Minerva the wonderful Ægis. The august goddess of wisdom seemed to have taken a strange fancy to the Gorgon's head, so Perseus gave her this trophy of his victory, and she fixed it in the middle of her shield. When Perseus, with Andromeda and Danaë, arrived in Argo, they found that old Acrisius had been driven from his throne, and that a usurper was enjoying the kingdom. It did not take long for the hero who had slain Medusa to kill the unlawful claimant, and reinstate his grandfather. The old man had been languishing for years in prison, and was hardly able to endure the great joy of his release at the hands of one whom he had long since believed to be dead. Things seemed to be settled very happily in spite of the oracle; but the decrees of the gods are sure to be fulfilled, and one day when Perseus was playing quoits, he accidentally threw one wide of the mark. It struck Acrisius, who was looking on at the game, and killed him instantly. This unfortunate mishap so preyed upon Perseus's mind that he could not remain in Argo, but exchanged his kingdom for that of Mycenæ, over which he ruled for many years very wisely and well. When at last Perseus died, the gods placed him among the stars with his wife Andromeda, and with Cassiopeia, who had long since been cured of her vanity. Chapter XXVI Bellerophon