When the Persians had crossed the waterless country and encamped near the Egyptians intending to engage them, the Egyptian mercenaries, Greeks and Carians, devised a plan to punish Phanes, angered at him for leading a foreign army into Egypt . Phanes had left sons in Egypt ; these they brought to the camp, into their father's sight, and set a great bowl between the two armies; then they brought the sons one by one and cut their throats over the bowl. When all the sons had been slaughtered, they poured wine and water into the bowl, and the mercenaries drank this and then gave battle. The fighting was fierce, and many of both armies fell; but at last the Egyptians were routed.