tombs, but was defeated and fled to Mianchi and Shan (陝), west of Luoyang. Sun Jian then continued to march into Luoyang, where he met and routed the forces of Lü Bu. Settling in, Sun ordered his men to reseal the tombs of former emperors that were excavated by Dong Zhuo. It was said in Wei Zhao's Book of Wu (吳書) that Sun Jian found the lost Imperial Seal in a well south of Luoyang and kept it for himself. Sun Jian then sent part of his force forward to Xin'an and Mianchi to threaten Dong Zhuo's defense positions. Dong now sent Dong Yue (董越) to camp at Mianchi, Duan Wei (段煨) to camp at Huayin, and Niu Fu to camp at Anyi (安邑). His other commanders were spread out among the counties to block any attack from the east of the mountains. After these arrangements, Dong Zhuo led his own troops away to Chang'an. Having repaired the imperial tombs, Sun Jian led his army back to Luyang as the ruined Luoyang was vulnerable to possible counterattacks by Dong Zhuo. The former capital of Luoyang was now abandoned by both contending forces. Internal conflict Despite Sun Jian's successes, the coalition did not build upon them due to poor communication and coordination among the leaders. The warlords in the east were unaware that Emperor Xian was still alive as they were isolated by the passes separating Luoyang from the east. Yuan Shao and Han Fu proposed to enthrone Liu Yu, the Inspector of You Province (幽州) and a member of the imperial clan, as the new emperor. Cao Cao and Yuan Shu disagreed with the proposal. When Yuan Shao and Han Fu sent a messenger to Liu Yu to inform him, Liu rebuked the messenger sternly and refused the offer flatly. Liu expressed his loyalty to the current Emperor Xian and threatened to head north into Xiongnu territory if Yuan Shao insisted that he become the new emperor. After repeated failed attempts, Yuan Shao decided to give up. In addition, the warlords turned their attention from Dong Zhuo back to themselves and started to pursue their individual interests again instead of uniting against Dong Zhuo. Han Fu, who was in charge of provisions, gradually stopped supplying the coalition army. His subordinate Qu Yi rebelled against him and defeated him before defecting over to Yuan Shao. The incident alerted Yuan of his