Asclepius, the son of Apollo, being a mighty physician, raised men from the dead. But Zeus was wroth that a man should have such power, and so make of no effect the ordinance of the Gods. Wherefore he smote Asclepius with a thunderbolt and slew him. And when Apollo knew this, he slew the Cyclop s that had made the thunderbolts for his father Zeus, for men say that they make them on their forges that are in the mountain of Etna. But Zeus suffered not this deed to go unpunished, but passed this sentence on his son Apollo, that he should serve a mortal man for the space of a whole year. Wherefore, for all that he was a god, he kept the sheep of Admetus, who was the Prince of Pher in Thessaly.