A Book of Myths, by Jean Lang - Umnet

"So thou hast returned? oh nameless son of a deathless god," he said.
"Thou didst boast, but methinks thy boast was an empty one!"
But even as he spoke, the jeering smile froze on his face, and the faces
of those who sat with him stiffened in horror.
"O king," Perseus said, "I swore that, the gods helping me, thou
shouldst have the head of Medusa. The gods have helped me. Behold
the Gorgon's head."
Wild horror in their eyes, Polydectes and his friends gazed on the
unspeakable thing, and as they gazed they turned into stone--a ring of
grey stones that still sit on a hillside of Seriphos.
With his wife and his mother, Perseus then sailed away, for he had a
great longing to take Danaë back to the land of her birth and to see if
her father, Acrisius, still lived and might not now repent of his cruelty
to her and to his grandson. But there he found that the sins of Acrisius
had been punished and that he had been driven from his throne and his
own land by a usurper. Not for long did the sword of Perseus dwell in
its scabbard, and speedily was the usurper cast forth, and all the men of
Argos acclaimed Perseus as their glorious king. But Perseus would not
be their king.
"I go to seek Acrisius," he said. "My mother's father is your king."
Again his galley sailed away, and at last, up the long Euboean Sea they
came to the town of Larissa, where the old king now dwelt.
A feast and sports were going on when they got there, and beside the
king of the land sat Acrisius, an aged man, yet a kingly one indeed.
And Perseus thought, "If I, a stranger, take part in the sports and carry
away prizes from the men of Larissa, surely the heart of Acrisius must
soften towards me."
Thus did he take off his helmet and cuirass, and stood unclothed beside
the youths of Larissa, and so godlike was he that they all said, amazed,