"When the fish-eaters reached the Ethiopians and gave over their presents to the king, they said: 'Cambyses, the king of the Persians, wishes to be your friend and sends you as presents these things in which he takes most delight himself.' The Ethiopians answered: 'The Persian king has not sent you with these presents because he wishes to be my friend, and ye are not speaking the truth. You have been sent to spy out my kingdom, and he is not a righteous man. If he were righteous he would not have desired another land than his own, nor would he have reduced men to slavery from whom he had suffered no wrong. Give him this bow (the bows of the Ethiopians were of palm-wood and more than four cubits in length),[157] and say to the king of the Persians, that when his people can string a bow of that size he may march against the long-lived Ethiopians with an overwhelming army; till then, he may thank the gods that it has not occurred to the sons of the Ethiopians to conquer another land in addition to their own.' Then he gave them the bow, and he took the purple robe, and asked what it was and how it was made. And when the fish-eaters gave him a true account of the purple and the dyeing, he said that the men were deceivers and their garments deceptive. When he saw the necklace and bracelets, the king laughed, for he imagined that they were fetters; their fetters, he said, were stronger. Then he inquired about the ointment, and when the preparation and use of this were explained, he said the same as about the robes. The wine he drank and it pleased him greatly, and he asked what the king of Persia ate, and what was the greatest age to which the Persians lived. They replied that he ate bread, and explained the nature of wheat; they also put the greatest age to which the Persians lived at eighty years. The king replied that he did not wonder that their years were few, inasmuch as they ate dirt, and they would not live so long as they did, if the drink did not strengthen them--in that matter the Persians had the advantage. Of the Ethiopians most lived to 120 years, and some even longer; their food was cooked flesh, and their drink milk. When the envoys returned and Cambyses received their account, he fell into a passion, and marched against the Ethiopians without taking measures for the supply of provisions or considering that he was about to march to the end of the world, but like one distraught and out of his mind, he set forth on his expedition as soon as he heard the account of the fish-eaters. No Persian was able to draw the bow of the Ethiopians; Smerdis alone, the brother of Cambyses, was able to draw it two finger-breadths.[158] Cambyses bade the Greeks who were with him (_i.e._ the crews of the Greek ships) to remain in Egypt; but the whole of the rest of the army he took with him. When he came to Thebes, he sent 50,000 men away with orders to enslave the Ammonians and burn the oracle of Zeus; with the rest he marched against the Ethiopians.