The course of events once more takes us back to Kashgar, where the Chinese still held the citadel against all comers. But with each fresh success of Yakoob Beg over his numerous opponents, and with the spread of the Tungan power into Jungaria, hope almost completely deserted the unfortunate Khitay, who, in this solitary fort, alone maintained the name of Chinese authority. Treason, within the walls, was now to aid the efforts from without. Kho Dalay, the superior officer in the citadel, although not the commandant, came to an arrangement with Yakoob Beg, by which honourable terms were conceded to the garrison; and 3,000 Khitay troops surrendered and settled in Kashgar. They were required to acknowledge formally the supremacy of the Khoja, and to make a profession of Islamism. But they were never really interfered with in the observance of their own rites among themselves, and had nothing to complain of in their duty. They were called after their recantation "Yangy Mussulmans," or "New Mussulmans." These were the last Khitay troops who surrendered to the new conquerors, and with them every vestige of Chinese authority disappeared from every part of Jungaria and Eastern Turkestan. Even among this garrison, reduced by a long siege and its attendant deprivations to despair, there was a small minority who preferred death to the dishonour involved in surrender. Chang Tay, the commandant, refused to be any party to the arrangement made between Kho Dalay and Yakoob Beg. When the day approached for the entry of the Kashgarian army, this resolute Amban withdrew to his palace, and having collected his family and dependents around him blew them all up with the explosion of a mine that he had constructed underneath. In the confusion that arose from this incident, the enemy broke into the fort, and it was not for some hours that Yakoob Beg succeeded in obtaining control over them once more. During that interval of insubordination many Khitay were murdered, but not without resistance. Kho Dalay and almost 3,000 men remained to take service in the conquering army, as already explained. The new alliance was cemented by the marriage of Yakoob Beg to the beautiful daughter of Kho Dalay, by whom he has had several children, too young as yet to take any part in public affairs. Perhaps Yakoob Beg's moderation to the Khitay is to be explained by this circumstance, and it is certain that down to the very end his Khitay wife exercised great influence over her husband.