do." Soon, when Ma Xi'e arrived with his fleet, his and Xu's fleet set up opposing lines across the Xiang. Xu, without letting his soldiers know, met with Ma Xi'e and continued negotiating with him, finally agreeing to his terms. Peng realized this, and went to Ma Xiguang, stating to him, "Xu Keqiong is about to commit treason. Everyone knows this. Please immediately execute him to stop this." Ma Xiguang, not believing Peng, responded, "He is Chancellor Xu's son. How would this happen?" Peng left his presence and lamented, but could do nothing else further. Early in the morning on January 21, 951, Ma Xi'e's officer He Jingzhen (), seeing that Han's flags were in disarray, believed that that was a sign that Han's army was in disarray, and therefore launched an attack against Han. Han's army was defeated, and Han died from injuries. The Wuping army then used the opportunity to make a fierce assault on Changsha. Ma Xiguang's other infantry commander, Wu Hong (), and Yang Di (), fought hard to try to resist the Wuping army's assault from the early morning to noon, but eventually, Yang's army was worn out, without any aid coming from either Xu or another commander Liu Yantao (). Ma Xi'e's non-Han soldiers set fire to Changsha's east wall, and when the defenders requested that Xu come to their aid, Xu instead surrendered to Ma Xi'e, and Changsha thereafter fell. Ma Xi'e seized the throne, and subsequently forced Ma Xiguang to commit suicide. After Ma Xi'e's victory Ma Xi'e, after his victory, neither carried out his promise to Xu Keqiong (to divide Chu among them) nor gave him any particular rewards. Suspecting that Xu would resent him, he sent Xu out to Meng Prefecture (蒙州, in modern Wuzhou, Guangxi) to serve as its prefect. Meanwhile, Ma Xi'e also sent the general Peng Yanhui () to Jingjiang Circuit (靜江, headquartered in modern Guilin, Guangxi) to take control of the circuit, drawing resentment from his younger brother Ma Xiyin, who was then the deputy military governor of the circuit. Ma Xiyin secretly summoned Xu to come to Gui to oppose Peng with him. Xu thereafter arrived at Gui and defeated Peng in battle; Peng abandoned Gui and fled to Hengshan (衡山, in modern Hengyang, Hunan), where Ma Xi'e was at that time after being overthrown by another brother, Ma Xichong. Xu stayed at Gui, in