The hero then traveled on in search of Atlas, whom he finally found standing on the coast of Africa, with the great weight of the heavens resting on his broad shoulders. As Hercules looked up at the enormous figure, which reached so far into the clouds that nothing could be seen above his waist, he noticed that the forests had grown up so thick and tall all around that only a glimpse of the giant's huge legs could be seen through the heavy foliage. As the hero stood watching this figure that for centuries had stood here in obedience to the divine command of Jupiter, he saw dark clouds beginning to gather about the giant's head, and soon a storm broke over the sea and land. Amid the beating of the rain and the crash of the thunder, Hercules thought he heard the voice of Atlas speaking to him; but it might have been only a peal of thunder. When the storm was over and the mists rolled away from the earth, Hercules saw the head of Atlas through rifts in the scurrying clouds. The snow-white hair gave the giant's face a benign look as it fell thick and white over the stooping shoulders that bore so terrible a weight. In a voice that he strove hard to make gentle, Atlas asked the hero what he was seeking, and Hercules told him that he had come to get some of the golden apples from the Garden of the Hesperides.[80] Atlas laughed at these words, and his great shoulders shook so with merriment that a few of the stars fell out of their places. Then he told Hercules that such a feat was impossible even to so great a hero; but that if some one would take the heavens from his shoulders for a few hours, he himself would get the apples.[81]

Hercules was delighted with this offer of assistance, and agreed to take the giant's burden while the latter went on his friendly errand. Very carefully Atlas transferred the heavens to the shoulders of Hercules, and then sped westward to the Garden of the Hesperides. The hero was a bit troubled when he saw Atlas shake his huge shoulders and stretch himself in delight at his freedom, for it would be strange, indeed, if the giant were ready to resume his burden after having tasted the joy of liberty. With some anxiety Hercules watched him step into the sea that came only to his knees though he had waded out a mile from the shore. As Atlas went deeper and deeper into the waves, at first his huge bulk loomed like a cliff against the horizon; but soon it dwindled into a mere speck, and was presently lost to view. How long he stood holding the heavens Hercules never knew; but he found himself growing very weary of his burden, and anxious over Atlas's long absence. Suddenly he saw a dark spot on the horizon, and he knew that it was the giant returning.

It had not been a difficult task for Atlas to reach the Garden, or to pluck the golden apples from the carefully-guarded tree; and Hercules, delighted with the giant's success, thanked him for his trouble and asked him politely to take the sky again on his shoulders, for the journey back to the court of Eurystheus was a long one. Now Atlas had no desire to stand for another dozen centuries with his old burden; and seeing a good opportunity of getting rid of it forever, he told Hercules that he would carry the apples to Eurystheus himself; and meanwhile the hero could keep the heavens supported until Atlas returned. Pretending that he was quite satisfied with this arrangement, Hercules bade the giant good-by; then hastily asked him to wait a moment while he made a pad for his shoulders to ease the weight of the unaccustomed burden. The unsuspicious giant good-naturedly agreed to this, and took the heavens from Hercules; but instead of making a cushion, the hero picked up the golden apples, which Atlas had dropped on resuming his burden, and started back to his own country, leaving the giant to stand on the seashore forever, or until the pitying gods should release him.

The twelfth and last labor of Hercules was to bring from Hades the three-headed dog, Cerberus. With the help of Mercury and Minerva, he descended into the dread realm of Pluto, and begged that grim monarch to let him take Cerberus into the upper world. Pluto was not willing at first to lose the guardian of his gates even for a short time; but at length he consented to let Hercules do as he desired on condition that Cerberus should not be bound or any weapons used upon him. So the fierce three-headed creature was carried, snarling and struggling, in the hero's strong arms; and when the pair approached the throne of Eurystheus, the horror-struck monarch implored Hercules to take the monster back as quickly as possible, for the sight of its dripping jaws, from which oozed the deadly nightshade, so terrified Eurystheus that he sought refuge in a huge jar, and would not come out until his courtiers assured him that Cerberus was safely out of the country.

When the twelve labors were ended, Hercules's term of service at the court of Eurystheus was over, and he was free to wander where he willed. He spent many years roaming through various lands and assisting other heroes who, like himself, were in search of adventures. He took part in the battle between the Centaurs and Lapithæ;[82] joined in the Argonautic expedition; organized the first siege of Troy, and braved the terrors of Hades to bring Alcestis back to her repentant husband.[83] The expedition against Troy was one of revenge, for the false Laomedon had never paid the gold that he had promised for the release of his daughter Hesione from the sea-monster; and Hercules now set out to punish the treacherous king.[84] So he sailed for Troy with eighteen ships, and the city fell into his hands with but little resistance. Laomedon was killed, his son Priam placed on the throne of Troy, and Hesione given in marriage to Telamon, one of the Greeks who accompanied Hercules.

Hercules serving Omphale

The hero's splendid career received a check, however, for in a quarrel he killed his friend Iphitus, and the gods, angry at this unnecessary bloodshed, compelled him to go once more into bondage. So for three years Hercules served Omphale, queen of Lydia; and during this time he lived very effeminately, wearing sometimes the dress of a woman and spinning wool with the handmaidens of Omphale, while the queen wore his lion's skin and wielded his renowned club. When his years of servitude were over, he set out again on his wanderings; and during one of his journeys he met the beautiful Deïaneira, daughter of Œneus of Calydon and sister of Meleager, famous in the Calydonian hunt. Hercules immediately sought the maiden's hand in marriage; but she had another suitor, the river god Achelous, who had already obtained her father's consent. Deïaneira, however, much preferred her new lover, and begged him to free her from the betrothal with Achelous. So Hercules challenged the river-god to a wrestling match, the conditions of the contest being that he who won should have the maiden in marriage. Achelous readily agreed to this way of settling their rival pretensions, for he had no doubt as to the result of the wrestling.

The opponents were well matched as to strength, but the river-god had one great advantage, for he could assume any form he pleased, and thus bewilder any one who tried to grapple with him. Among his many changes, he took the form of a serpent; but when Hercules grasped it by the neck and was about to strangle it, Achelous became a bull and rushed at the hero with lowered horns. Skillfully eluding this unexpected attack, Hercules seized the bull by one horn and held on so firmly that when the creature tried to wrench himself free the horn broke. This decided the victory in favor of Hercules, and Achelous departed sullenly to his bed in the river. The broken horn was appropriated by Fortuna, the goddess of plenty, who filled it with her treasures, and adopted it thenceforth as her symbol, calling it Cornucopia.