Hercules left the expedition [for the Golden Fleece] at Mysia, for Hylas, a youth beloved by him, having gone for water, was laid hold of and kept by the nymphs of the spring, who were fascinated by his beauty. Hercules went in quest of the lad, and while he was absent the Argo [Argonauts] put to sea and left him.
Hercules in a fit of madness killed his friend Iphitus and was condemned for this offence to become the slave of Queen Omphale for three years. While in this service the hero's nature seemed changed. 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.
When this service [to Omphale] was ended he married Dejanira and lived in peace with her three years. On one occasion as he was travelling with his wife, they came to a river, across which the Centaur Nessus carried travellers for a stated fee. Hercules himself forded the river, but gave Dejanira to Nessus to be carried across. Nessus attempted to run away with her, but Hercules heard her cries, and shot an arrow into the heart of Nessus. The dying Centaur told Dejanira to take a portion of his blood and keep it, as it might be used as a charm to preserve the love of her husband.
Dejanira did so, and before long fancied she had occasion to use it. Hercules in one of his conquests had taken prisoner a fair maiden, named Iole, of whom he seemed more fond than Dejanira approved. When Hercules was about to offer sacrifices to the gods in honor of his victory, he sent to his wife for a white robe to use on the occasion. Dejanira, thinking it a good opportunity to try her love-spell, steeped the garment in the blood of Nessus. We are to suppose she took care to wash out all traces of it, but the magic power remained, and as soon as the garment became warm on the body of Hercules, the poison penetrated into all his limbs and caused him the most intense agony. In his frenzy he seized Lichas, who had brought him the fatal robe, and hurled him into the sea. He wrenched off the garment, but it stuck to his flesh, and with it he tore away whole pieces of his body. In this state he embarked on board a ship and was conveyed home. Dejanira on seeing what she had unwittingly done, hung herself. Hercules, prepared to die, ascended Mount OEta, where he built a funeral pile of trees, gave his bow and arrows to Philoctetes, and laid himself down on the pile, his head resting on his club, and his lion's skin spread over him. With a countenance as serene as if he were taking his place at a festal board, he commanded Philoctetes to apply the torch. The flames spread apace and soon invested the whole mass.
The gods themselves felt troubled at seeing the champion of the earth so brought to his end; but Jupiter with cheerful countenance thus addressed them; "I am pleased to see your concern, my princes, and am gratified to perceive that I am the ruler of a loyal people, and that my son enjoys your favor. For although your interest in him arises from his noble deeds, yet it is not the less gratifying to me. But now I say to you, Fear not. He who conquered all else is not to be conquered by those flames which you see blazing on Mount OEta. Only his mother's share in him can perish; what he derived from me is immortal. I shall take him, dead to earth, to the heavenly shores, and I require of you all to receive him kindly. If any of you feel grieved at his attaining this honor, yet no one can deny that he has deserved it." The gods all gave their assent; Juno only heard the closing words with some displeasure that she should be so particularly pointed at, yet not enough to make her regret the determination of her husband. So when the flames had consumed the mother's share of Hercules, the diviner part, instead of being injured thereby, seemed to start forth with new vigor, to assume a more lofty port and a more awful dignity. Jupiter enveloped him in a cloud, and took him up in a four-horse chariot to dwell among the stars. As he took his place in heaven, Atlas felt the added weight.
Juno, now reconciled to him, gave him her daughter Hebe in marriage.