In the 23rd year of the Republic of China, a strange thing happened in Liulichang, Peking Antique Street: an old shop called "Bone Ji" specializes in human bone antiques-skull bowls, finger bone pens, and leg bone flutes. It is said that these things can communicate with Yin and Yang, and see life and death. The protagonist Shen Yanqing is a forensic doctor who has returned from studying abroad. He does not believe in ghosts and gods, but he is involved in the vortex of Bones due to a bizarre murder case. The dead man held in his hand a skull full of cipher text, and that skull came from Shen Yanqing's brother who disappeared ten years ago.
