His ninth labor was of a more delicate character. Admeta, the daughter of Eurystheus, desired the girdle of the queen of the Amazons, and Eurystheus ordered Hercules to get it. The Amazons were a nation dominated by warlike women, and in their hands were many cities. It was their custom to bring up only the female children, whom they hardened by martial discipline; the boys were either dispatched to the neighboring nations or put to death. Hippolyta, the queen, received Hercules kindly and consented to yield him the girdle; but Juno, taking the form of an Amazon, persuaded the people that the strangers were carrying off their queen. They instantly armed and beset the ship. Whereupon Hercules, thinking that Hippolyta had acted treacherously, slew her and, taking her girdle, made sail homeward. [Illustration: FIG. 126. HERACLES WITH THE BULL] The tenth task enjoined upon him was to capture for Eurystheus the oxen of Geryon, a monster with three bodies, who dwelt in the island Erythea (the red),--so called because it lay in the west, under the rays of the setting sun. This description is thought to apply to Spain, of which Geryon was king. After traversing various countries, Hercules reached at length the frontiers of Libya and Europe, where he raised the two mountains of Abyla and Calpe as monuments of his progress,--the Pillars of Hercules; or, according to another account, rent one mountain into two and left half on each side, forming the Strait of Gibraltar. The oxen were guarded by the giant Eurytion and his two-headed dog, but Hercules killed the warders and conveyed the oxen in safety to Eurystheus. One of the most difficult labors was the eleventh,--the robbery of the golden apples of the Hesperides. Hercules did not know where to find them; but after various adventures, arrived at Mount Atlas in Africa. Since Atlas was the father of the Hesperides, Hercules thought he might through him obtain the apples. The hero, accordingly, taking the burden of the heavens on his own shoulders,[216] sent Atlas to seek the apples. The giant returned with them and proposed to take them himself to Eurystheus. "Even so," said Hercules; "but, pray, hold this load for me a moment, while I procure a pad to ease my shoulders." Unsuspectingly the giant resumed the burden of the heavens. Hercules took the apples. [Illustration: FIG. 127 HERACLES AND CERBERUS] His twelfth exploit was to fetch Cerberus from the lower world. To this end he descended into Hades, accompanied by Mercury and Minerva. There he obtained permission from Pluto to carry Cerberus to the upper air, provided he could do it without the use of weapons. In spite of the monster's struggling he seized him, held him fast, carried him to Eurystheus, and afterward restored him to the lower regions. While in Hades, Hercules also obtained the liberty of Theseus, his admirer and imitator, who had been detained there for an attempt at abducting Proserpine.[217]