King Acrisius of Argos, grandson of Lynceus, had a daughter, Danae, famous for her unearthly beauty. Acrisius was predicted by the oracle that he would die at the hands of the son of Danae. To avoid such a fate, Acrisius built vast chambers roughly underground from bronze and stone and imprisoned his daughter there. But the ruler Zeus fell in love with her, entered the underground chambers of Danae in the form of golden rain, and the daughter of Acrisius became the wife of Zeus.