Qin Lu guarded the tomb in the mountains of western Sichuan for three years, living an isolated life. Sima Xingchen, who claimed to be a researcher at the Institute of Archeology, suddenly visited and claimed to inspect the ancient buildings of the Ming Dynasty. Qin Lu noticed the smell of blood on his body and became wary. That night, Sima Xingchen insisted on staying the night, but late at night he sneaked into the forbidden dry well in the backyard that his grandfather repeatedly told him never to approach before his death.
