The Idikut, or ruler, of the Uigurs acknowledged the Gurkhan as overlord, but the yearly tribute which he paid, and the daily tyranny of the agent near his court, so annoyed him that he took this official’s life at a place known as Kara Kodja. He resolved thereupon to seek the protection of Jinghis, whose triumphs and whose power were threatening even China, and filling all Asia with amazement and terror. Bardjuk, the watchful Idikut, had appointed an embassy to the conqueror, but events had delayed its departure.

When the three sons of Tukta Bijhi and their uncle fled taking their father’s head, which they had cut with all haste from his body on the battlefield, they despatched an envoy in advance to the Idikut to beg a refuge for themselves, and protection. The Idikut, seeing danger in their visit, slew the envoy, took the field against the brothers, and scattered all their forces. But later on he was troubled greatly by this act; for these new opponents might side with the Mongols, or they might join the Gurkhan; they might rouse either party to move against him. The Idikut’s delight was great, therefore, and genuine when Mongol envoys appeared before him. Jinghis had heard of the Idikut’s resolve, and, knowing well what good might rise from it, had taken action very promptly, and despatched as envoys Alp Utug and Durbai to the ruler of the Uigurs.

The Idikut showed the highest honor to these envoys, and dismissed them with every mark of courtesy and friendship, associating two envoys of his own to bear to Jinghis Khan the following message: “The fame of the world-conquering sovereign has come to me. I have agreed till very recently with the Gurkhan, and was just preparing to explain through an embassy a change in my position, and to yield myself with upright heart to thee, all conquering and mighty sovereign. While thinking over this I saw thy envoys coming toward me, and then I beheld a blue heaven through the clouds around me. I beheld a bright sun in the sky. I saw besides a blue shining river where just before the ice had hidden everything. I was filled with delight to my innermost being. I yield to thee the land of the Uigurs. I myself am the servant and son of Jinghis Khan the Immovable.” [[77]]

At first sight it might seem that the Mongol Khan would be satisfied with a statement of this kind, but he was far from satisfaction, for just then came four envoys from the sons of Tukta Bijhi, declaring their subjection,

The Uigur envoys were received with every honor, but since he doubted the Idikut’s sincerity, Jinghis sent envoys a second time with this message: “If the Idikut has the honest wish to subject himself let him come to us in person, and present us with what there is of greatest value in his treasure house.”

On hearing this message the Idikut went to his treasure house and took from it the best of gold, silver, pearls, and other precious objects. These were sent to Jinghis Khan that same summer, but the Idikut excused himself from offering them in person, and added various reasons to explain his own absence.

Fresh disorders broke out in Tangut, which caused new campaigning. The Mongols invaded that country a third time, routed its warriors, captured the city of Uiraka and the fortress of Imen. A second Tangut army was scattered, and Chong sing, the chief capital, was invested. During this siege peace was concluded and the Tangut king gave his daughter to Jinghis in marriage.

During 1209 the Mongol sovereign returned home in triumph and found Arslan Khan of the Karluks and the Idikut of the Uigurs waiting to render him homage. Arslan Khan had till then ruled conjointly with an agent of the Gurkhan, his suzerain. But, as the power of the Gurkhan had diminished in recent days very sensibly, many princes, who had recognized him up to that time, revolted. Among these was the Sultan of Khotan, who marched against him with an army, and persuaded Arslan Khan to drop allegiance. Arslan made haste to help the Sultan all the more, since at that time he was advised of the Gurkhan’s plans by that sovereign’s deceitful Emir, Tanigu. This traitor so represented Arslan to his overlord, the Gurkhan, that the latter gave him the title “son,” and appointed for him the agent whom Tanigu recommended. But when Mongol victories sent panic throughout Northern Asia, Arslan acted quickly. He slew the agent of the Gurkhan, joined Jinghis Khan very promptly, and waited for his favor.

Arslan said that if he received a golden girdle, and a high position [[78]]in the Mongol service he would have one wish alone ungratified: to be the fifth son of the great Khan. Jinghis, divining this wish of his, or learning of it, had it gratified. He gave Arslan his daughter, Altun Bighi, in marriage, and with her the title of fifth son was added.

Thus Jinghis Khan was intrenched in Kara Kitai very firmly. His next move was on Kitai itself, the great North China Empire. He was now master of mighty legions drawn from all tribes whose leaders and chiefs he had driven from existence in that fierce fight for dominion, during which no mercy had been manifest on either side, but in which greater wisdom, with keenness and skill, also fortune to some extent, were with Jinghis. [[79]]