When the intelligence of this new expedition reached the court of Kai-khosráu, he was astonished, and could not conceive how, after so signal a defeat and overthrow, Afrásiyáb had the means of collecting another army, and boldly invading his kingdom. To oppose this invasion, however, he ordered Tús and Fríburz, with twelve thousand horsemen, and marched after them himself with a large army. As soon as Tús fell in with the enemy the battle commenced, and lasted, with great carnage, a whole day and night, and in the end Barzú was victorious. The warriors of the Persian force fled, and left Tús and Fríburz alone on the field, where they were encountered by the conqueror, taken prisoners, and bound, and placed in the charge of Húmán. The tidings of the result of this conflict were received with as much rejoicing by Afrásiyáb, as with sorrow and consternation by Kai-khosráu. And now the emergency, on the Persian side, demanded the assistance of Rustem, whose indignation was roused, and who determined on revenge for the insult that had been given. He took with him Gustahem, the brother of Tús, and at midnight thought he had come to the tent of Barzú, but it proved to be the pavilion of Afrásiyáb, who was seen seated on his throne, with Barzú on his right hand, and Pírán-wísah on his left, and Tús and Fríburz standing in chains before them. The king said to the captive warriors: "To-morrow you shall both be put to death in the manner I slew Saiáwush." He then retired. Meanwhile Rustem returned thanks to Heaven that his friends were still alive, and requesting Gustahem to follow cautiously, he waited awhile for a fit opportunity, till the watchman was off his guard, and then killing him, he and Gustahem took up and conveyed the two prisoners to a short distance, where they knocked off their chains, and then conducted them back to Kai-khosráu.