After his return from Hades to his native Thebes, he renounced his wife Megara, for, having slain his children by her in his fit of madness, he looked upon the marriage as displeasing to the gods. Two other exploits not recorded among the twelve labors are the victories over Antæus and Cacus. Antæus, the son of Poseidon and Gæa, was a giant and wrestler whose strength was invincible so long as he remained in contact with his mother Earth. He compelled all strangers who came to his country to wrestle with him, on condition that if conquered, they should suffer death. Hercules encountered him and, finding that it was of no avail to throw him,--for he always rose with renewed strength from every fall,--lifted him up from the earth and strangled him in the air. Later writers tell of an army of Pygmies which, finding Hercules asleep after his defeat of Antæus, made preparations to attack him, as if they were about to attack a city. But the hero, awakening, laughed at the little warriors, wrapped some of them up in his lion's skin, and carried them to Eurystheus. [Illustration: FIG. 128. HERACLES AND ANTÆUS] Cacus was a giant who inhabited a cave on Mount Aventine and plundered the surrounding country. When Hercules was driving home the oxen of Geryon, Cacus stole part of the cattle while the hero slept. That their footprints might not indicate where they had been driven, he dragged them backward by their tails to his cave. Hercules was deceived by the stratagem and would have failed to find his oxen, had it not happened that while he was driving the remainder of the herd past the cave where the stolen ones were concealed, those within, beginning to low, discovered themselves to him. Hercules promptly dispatched the thief. Through most of these expeditions Hercules was attended by Iolaüs, his devoted friend, the son of his half brother Iphicles. =158. His Later Exploits.= On the later exploits of the hero we can dwell but briefly. Having, in a fit of madness, killed his friend Iphitus, he was condemned for the offense to spend three years as the slave of Queen Omphale. He lived effeminately, wearing at times the dress of a woman and spinning wool with the handmaidens of Omphale, while the queen wore his lion's skin. But during this period he contrived to engage in about as many adventures as would fill the life of an ordinary hero. He rescued Daphnis from Lityerses and threw the bloodthirsty king[218] into the river Mæander; he discovered the body of Icarus[219] and buried it; he joined the company of Argonauts, who were on their way to Colchis to secure the golden fleece, and he captured the thievish gnomes, called Cercopes. Two of these grotesque rascals had made off with the weapons of Hercules while he was sleeping. When he had caught them he strapped them, knees upward, to a yoke and so bore them away. Their drollery, however, regained them their liberty. It is said that some of them having once deceived Jupiter were changed to apes.