The fifth task was a curious one. Augeas, King of Elis, had immense herds, and kept his stables and cowhouses in a frightful state of filth, and Eurystheus, hoping either to disgust Hercules or kill him by the unwholesomeness of the work, sent him to clean them. Hercules, without telling Augeas it was his appointed task, offered to do it if he were repaid the tenth of the herds, and received the promise on oath. Then he dug a canal, and turned the water of two rivers into the stables, so as effectually to cleanse them; but when Augeas heard it was his task, he tried to cheat him of the payment, and on the other hand Eurystheus said, as he had been rewarded, it could not count as one of his labors, and ordered him off to clear the woods near Lake Stymphalis of some horrible birds, with brazen beaks and claws, and ready-made arrows for feathers, which ate human flesh. To get them to rise out of the forest was his first difficulty, but Pallas lent him a brazen clapper, which made them take to their wings; then he shot them with his poisoned arrows, killed many, and drove the rest away. King Minos, of Crete, had once vowed to sacrifice to the gods whatever should appear from the sea. A beautiful white bull came, so fine that it tempted him not to keep his word, and he was punished by the bull going mad, and doing all sorts of damage in Crete; so that Eurystheus thought it would serve as a labor for Hercules to bring the animal to Mycenae. In due time back came the hero, with the bull, quite subdued, upon his shoulders; and, having shown it, he let it loose again to run about Greece. He had a harder task in getting the mares of the Thracian king, Diomedes, which were fed on man's flesh. He overcame their grooms, and drove the beasts away; but he was overtaken by Diomedes, and, while fighting with him and his people, put the mares under the charge of a friend; but when the battle was over, and Diomedes killed, he found that they had eaten up their keeper. However, when he had fed them on the dead body of their late master they grew mild and manageable, and he brought them home. The next expedition was against the Amazons, a nation of women warriors, who lived somewhere on the banks of the Euxine, or Black Sea, kept their husbands in subjection, and seldom brought up a son. The bravest of all the Amazons was the queen, Hippolyta, to whom Mars had given a belt as a reward for her valor. Eurystheus's daughter wanted this belt, and Hercules was sent to fetch it. He was so hearty, honest, and good-natured, that he talked over Hippolyta, and she promised him her girdle; but Juno, to make mischief, took the form of an Amazon, and persuaded the ladies that their queen was being deluded and stolen away by a strange man, so they mounted their horses and came down to rescue her. He thought she had been treacherous, and there was a great fight, in which he killed her, and carried off her girdle.