The fleets soon came face to face; and Xerxes took up his post on a mountain, where he sat in state upon a hastily built throne to see his vessels destroy the enemy. He had made very clever plans, and, as his fleet was far larger than that of the Greeks, he had no doubt that he would succeed in defeating them.

His plans, however, had been found out by Aristides, who was in the Island of Aegina; and this noble man rowed over to the fleet, at the risk of being caught by the enemy, to warn his fellow citizens of their danger.