 Li Weiyue began to suspect Wang, particularly after yet another officer, Kang Rizhi (康日知), surrendered Zhao Prefecture (趙州, in modern Shijiazhuang) to the imperial cause, but his staff members urged him not to suspect Wang, as Wang was the only officer he could depend on by this point.Li Weiyue agreed, and put Wang Shizhen in charge of security while putting Wang Wujun in command of an army, assisted by Wei Changning (衛常寧), to try to recapture Zhao Prefecture.As soon as Wang Wujun left Heng Prefecture, however, he considered surrendering to Zhang.