The taoist tells the constable that he has found the body of the murderer, and that the wounds on the back of the corpse are caused by the phosphorus fire. The constable is shocked, and wonders why the murderer didn't prepare for the appearance of Zhanhao before he died. He also wonders why gao, the local magistrate, was ordered to pick up tian to go home, and why the corpse phosphorus flame was found in the room. He is also shocked that gao is a swindler, and asks the constable not to take the matter to his heart, because it is about the safety of the young man. He tells gao that there is a story about a general named xizu who led his army into the "sleeping dragon valley" to destroy the poisonous dragon. The name of the valley was given to the valley because the emperor of the time named the valley after the sleeping dragon, and because the valley is a place where herbs and elixir can be grown, despite its "grim creep and anomalous" appearance.