A suspenseful mystery novel that combines suspense, forensic reasoning, and supernatural elements. It is set in the Shaoding period of the Southern Song Dynasty. The story revolves around Song Ci, the prosecutor of the Southern Song Dynasty. He was ordered to investigate a bizarre murder case - a wealthy businessman died of a "ghost shadow seeking his life". The case is complicated and confusing, and the horrific expression of the deceased and the maid who claimed to have seen ghosts have caused rumors to spread. As Song Ci conducted an in-depth investigation, he discovered that behind the case was a murder case that occurred ten years ago, in which wealthy businessmen colluded with the powerful at the time, involving mysterious poisons and illusions...