Failing to quell the outbreak, Theseus in despair sent his children to Euboea, and after solemnly cursing the Athenians sailed away to the island of Scyrus, where he had ancestral estates.
But Lycomedes, king of Scyrus, took him up to a high place, and killed him by casting him into the sea.
When the Persian war was over the Delphic oracle bade the Athenians fetch the bones of Theseus from Scyrus, and' lay them in Attic earth.
It fell to Cimon's lot in 469 B.C. to discover the hero's grave at Scyrus and bring back his bones to Athens.