So the fleet lay there off the river Axius and the city of Therma and the towns between them, awaiting the king. But Xerxes and his land army marched from Acanthus by the straightest inland course, making for Therma. Their way lay through the Paeonian and the Crestonaean country to the river Cheidorus, which, rising in the Crestonaean land, flows through the Mygdonian country and issues by the marshes of the Axius.