It would seem that, at first, Genghis Khan did not know what was become of the fugitives. At any rate, it was not until the next year that he attempted to pursue them. Then, hearing where they were and what they were doing, he prepared an expedition to penetrate into the country of the Irtish and attack them. It was in the dead of winter when he arrived in the country. He had hurried on at that season of the year in order to prevent Tukta Bey from having time to finish his fortifications. Tukta Bey and those who were with him were amazed when they heard that their enemy was coming at that season of the year. The defenses which they were preparing for their fortress were not fully completed, but they were at once convinced that they could not hold their ground against the body of troops that Genghis Khan was bringing against them in the open field, and so they all took shelter in and near the fortress, and awaited their enemy there. The winters in that latitude are very cold, and the country through which Genghis Khan had to march was full of difficulty. The branches of the river which he had to cross were obstructed with ice, and the roads were in many places rendered almost impassable by snow. The emperor did not even know the way to the fortress where Tukta Bey and his followers were concealed, and it would have been almost impossible for him to find it had it not been for certain tribes, through whose territories he passed on the way, who furnished him with guides. These tribes, perceiving how overwhelming was the force which Genghis Khan commanded, knew that it would be useless for them to resist him. So they yielded submission to him at once, and detached parties of horsemen to go with him down the river to show him the way. Under the conduct of these guides Genghis Khan passed on. In due time he arrived at the fortress of Ardish, and immediately forced Tukta Bey and his allies to come to an engagement. Tukta's army was very soon defeated and put to flight. Tukta himself, and many other khans and chieftains who had joined him, were killed; but the Prince Kushluk was once more fortunate enough to make his escape. He fled with a small troop of followers, all mounted on fleet horses, and after various wanderings, in the course of which he and they who were with him endured a great deal of privation and suffering, the unhappy fugitive at last reached the dominions of a powerful prince named Gurkhan, who reigned over a country which is situated in the western part of Asia, toward the Caspian Sea, and is named Turkestan. This is the country from which the people called the Turks, who afterward spread themselves so widely over the western part of Asia and the eastern part of Europe, originally sprung.