Book IV. Melpomene

and charged them that they should proceed continually towards the North Wind. These, I say, were being carried on before: 122. but when the scouts who went in front of the Scythians discovered the Persians distant about three days’ march from Ister, then the Scythians having discovered them continued to pitch their camp one day’s march in front, destroying utterly that which grew from the ground: and when the Persians saw that the horsemen of the Scythians had made their appearance, they came after them following in their track, while the Scythians continually moved on. After this, since they had directed their march towards the first of the divisions, the Persians continued to pursue towards the East and the river Tanais; and when the Scythians crossed over the river Tanais, the Persians crossed over after them and continued still to pursue, until they had passed quite through the land of the Sauromatai and had come to that of the Budinoi. 123. Now so long as the Persians were passing through Scythia and the land of the Sauromatai, they had nothing to destroy, seeing that the land was bare, but when they invaded the land of the Budinoi, then they fell in with the wooden wall, which had been deserted by the Budinoi and left wholly unoccupied, and this they destroyed by fire. Having done so they continued to follow on further in the tracks of the enemy, until they had passed through the whole of this land and had arrived at the desert. This desert region is occupied by no men, and it lies above the land of the Budinoi, extending for a seven days’ journey; and above this desert dwell the Thyssagetai, and four large rivers flow from them through the land of the Maiotians and run into that which is called the Maiotian lake, their names being as follows⁠—Lycos, Oaros, Tanais, Syrgis. 124. When therefore Darius came to the desert region, he ceased from his course and halted his army upon the river Oaros. Having so done he began to build eight large fortifications at equal