But Theseus proved false to the maiden to whom he owed his life. Stopping at the island of Naxos, which was sacred to Dionysus (or Bacchus), the god of wine, he had a dream in which the god bade him to desert Ariadne and sail away. This the faithless swain did, leaving the weeping maiden deserted on the island. Legend goes on to tell us that the despair of the lamenting maiden ended in the sleep of exhaustion, and that while sleeping Dionysus found her, and made her his wife. As for the dream of Theseus, it was one of those convenient excuses which traitors to love never lack. Meanwhile, Theseus and his companions sailed on over the summer sea. Reaching the isle of Delos, he offered a sacrifice to Apollo in gratitude for his escape, and there he, and the merry youths and maidens with him, danced a dance called the Geranus, whose mazy twists and turns imitated those of the Labyrinth. But the faithless swain was not to escape punishment for his base desertion of Ariadne. He had arranged with his father AEgeus that if he escaped the Minotaur he would hoist white sails in the ship on his return. If he failed, the ship would still wear the black canvas with which she had set out on her errand of woe. The aged king awaited the returning ship on a high rock that overlooked the sea. At length it hove in sight, the sails appeared, but--they were black. With broken heart the father cast himself from the rock into the sea,--which ever since has been called, from his name, the AEgean Sea. Theseus, absorbed perhaps in thoughts of the abandoned Ariadne, perhaps of new adventures, had forgotten to make the promised change. And thus was the deserted maiden avenged on the treacherous youth who owed to her his life. The ship--or what was believed to be the ship--of Theseus and the hostages was carefully preserved at Athens, down to the time of the Macedonian conquest, being constantly repaired with new timbers, till little of the original ship remained. Every year it was sent to Delos with envoys to sacrifice to Apollo. Before the ship left port the priest of Apollo decorated her stern with garlands, and during her absence no public act of impurity was permitted to take place in the city. Therefore no one could be put to death, and Socrates, who was condemned at this period of the year, was permitted to live for thirty days until the return of the sacred ship.