Histories

This, then, is what happened in this battle. But Artabazus son of Pharnaces had from the very first disapproved of the king's leaving Mardonius, and now all his counselling not to join battle had been of no avail. In his displeasure at what Mardonius was doing, he himself did as I will show.

He had with him a great army, as many as forty thousand men. He knew full well what the outcome of the battle would be, and no sooner had the Greeks and Persians met than he led these with a fixed purpose, telling them to follow him all together wherever he should lead them, whatever they thought his intent might be.