Then Eurystheus bade him go and make clean the stables of King Augeias. Heracles came into that king's country. The smell from the stables was felt for miles around. Countless herds of cattle and goats had been in the stables for years, and because of the uncleanness and the smell that came from it the crops were withered all around. Heracles told the king that he would clean the stables if he were given one tenth of the cattle and the goats for a reward. The king agreed to this reward. Then Heracles drove the cattle and the goats out of the stables; he broke through the foundations and he made channels for the two rivers Alpheus and Peneius. The waters flowed through the stables, and in a day all the uncleanness was washed away. Then Heracles turned the rivers back into their own courses. He was not given the reward he had bargained for, however. He went back to Mycenæ with the tale of how he had cleaned the stables. "Ten labors remain for me to do now," he said. "Eleven," said Eurystheus. "How can I allow the cleaning of King Augeias's stables to you when you bargained for a reward for doing it?" Then while Heracles stood still, holding himself back from striking him, Eurystheus ran away and hid himself in the jar. Through his heralds he sent word to Heracles, telling him what the other labors would be. He was to clear the marshes of Stymphalus of the maneating birds that gathered there; he was to capture and bring to the king the golden-horned deer of Coryneia; he was also to capture and bring alive to Myceaæ the boar of Erymanthus. Heracles came to the marshes of Stymphalus. The growth of jungle was so dense that he could not cut his way through to where the man-eating birds were; they sat upon low bushes within the jungle, gorging themselves upon the flesh they had carried there. For days Heracles tried to hack his way through. He could not get to where the birds were. Then, thinking he might not be able to accomplish this labor, he sat upon the ground in despair. It was then that one of the immortals appeared to him; for the first and only time he was given help from the gods. It was Athena who came to him. She stood apart from Heracles, holding in her hands brazen cymbals. These she clashed together. At the sound of this clashing the Stymphalean birds rose up from the low bushes behind the jungle. Heracles shot at them with those unerring arrows of his. The maneating birds fell, one after the other, into the marsh.