At the Wannian County Laixi Hall, Master Fei confirmed that the water Wei Yan almost drank contained strychnine poison.Wei Yan recognized the characters in "Yangong Song" copied by Xijun, including Zhu Ling, Zheng Zhong and the palace maid Bo Cui.Lu Lingfeng realized that the murderer might kill someone based on the painting.

Wei Yan mentioned Xiao Xizi, and Su Wuming found Xiao Xizi's body and confirmed his identity.Wei Yan remembered that the ghost market leader Feng Tai might know the identity of the man behind the painting.