During the Double Ninth Festival in the Zhengyang Hall, the emperor hosted a banquet for a group of senior ministers. Unexpectedly, the three of them suddenly went crazy and died suddenly with screams. Rumors spread in Jinling that Wanhou came to claim his life. Mu Lingxi was entrusted by a nobleman to go to Jinling to save people, but unexpectedly discovered that the long-lost Gumo Qidu from the Western Regions had appeared in Jinling. Murder cases occurred one after another, which were strange and bizarre. They not only involved Jianghu medical sects, but also seemed to be inextricably related to the imperial court's fight for the heir~~~