Bone Lock Secret

On the first day of dressing up as an ancient widow, Lin Mo found the body of the county magistrate's daughter in front of him. Everyone said she slipped and fell, but he was the only one who discovered that holes had been drilled through the back of the girl's head with high-temperature bone needles, there were burn marks on the inner wall of the skull, and there was river sand embedded in the gaps between her fingernails. This is already the sixth "unknown corpse" in Qinghe County in six months. The occipital bones of each body were accurately drilled, the brains were removed, and the remaining bones were polished into cards. The cards were engraved with: "Geng Qi", "A Yi", "Yi San"... A mysterious woman from Lin'an warned him: "If you continue to investigate, you will die." But Lin Mo pried open the bottom of the dry well on the outskirts of the city and discovered an underground secret room full of clay pots. The bones in the jar were broken into powder, and the bone inscriptions on the wall were like curses. Someone used 7,749 skulls as lock cylinders to open the seven-fold door that was sealed three hundred years ago. There is a pair of "eyes" closed behind the door, and his body is the "living embryo" that opens the last door. Examine the bones, chase the murderer, and break the situation. This is a story about a man who uses a knife as a pen and bones as a scroll, from Yizhuang to the center of the world.