Having given his sons to Artemisia's charge to be carried to Ephesus, Xerxes called Mardonius to him and bade him choose whom he would from the army, and make his words good so far as endeavor availed. That is as far as matters went on that day; in the night, however, the admirals, by the king's command, put out to sea from Phalerum and made for the Hellespont again with all speed to guard the bridges for the king's passage. When the barbarians came near to the “Girdle” in their course, they thought that certain little headlands, which here jut out from the mainland, were ships, and they fled for a long way. When they learned at last that they were no ships but headlands, they drew together and went on their way.