It was then that Heracles was given arms by the gods--the sword of Hermes, the bow of Apollo, the shield made by Hephæstus; it was then that Heracles joined the Argonauts and journeyed with them to the edge of the Caucasus, where, slaying the vulture that preyed upon Prometheus's liver, he, at the will of Zeus, liberated the Titan. Thereafter Zeus and Prometheus were reconciled, and Zeus, that neither might forget how much the enmity between them had cost gods and men, had a ring made for Prometheus to wear; that ring was made out of the fetter that had been upon him, and in it was set a fragment of the rock that the Titan had been bound to.
The Argonauts had now won back to Greece. But before he saw any of them he had been in Oichalia, and had seen the maiden Iole.
The king of Oichalia had offered his daughter Iole in marriage to the hero who could excel himself and his sons in shooting with arrows. Heracles saw Iole, the blue-eyed and childlike maiden, and he longed to take her with him to some place near the Garden of the Hesperides. And Iole looked on him, and he knew that she wondered to see him so tall and so strongly knit even as he wondered to see her so childlike and delicate.
Then the contest began. The king and his sons shot wonderfully well, and none of the heroes who stood before Heracles had a chance of winning. Then Heracles shot his arrows. No matter how far away they moved the mark, Heracles struck it and struck the very center of it. The people wondered who this great archer might be. And then a name was guessed at and went around--Heracles!
When the king heard the name of Heracles he would not let him strive in the contest any more. For the maiden Iole would not be given as a prize to one who had been mad and whose madness might afflict him again. So the king said, speaking in judgment in the market place.
Rage came on Heracles when he heard this judgment given. He would not let his rage master him lest the madness that was spoken of should come with his rage. So he left the city of Oichalia declaring to the king and the people that he would return.
It was then that, wandering down to Crete, he heard of the Argonauts being near. And afterward he heard of them being in Calydon, hunting the boar that ravaged OEneus's country. To Calydon Heracles went. The heroes had departed when he came into the country, and all the city was in grief for the deaths of Prince Meleagrus and his two uncles.