Having excavated the trench, he caused it to be filled with water, and covered carefully with boughs of trees, reeds, and earth, so as to be undistinguishable from the general surface of the plain on which he was encamped.

On the arrival of the Persians in his front, he first of all held a parley with Perozes, in which, after reproaching him with his ingratitude and breach of faith, he concluded by offering to renew the peace.

Perozes scornfully refused; whereupon the Ephthalite prince hung on the point of a lance the broken treaty, and, parading it in front of the Persian troops, exhorted them to avoid the vengeance which was sure to fall on the perjured by deserting their doomed monarch.

Upon this, half the army, we are told, retired; and Khush-newaz proceeded to effect the destruction of the remainder by means of the plan which he had so carefully prepared beforehand.

He sent a portion of his troops across the ditch, with orders to challenge the Persians to an engagement, and, when the fight began, to fly hastily, and, returning within the ditch by the sound passage, unite themselves with the main army.