Shanghai concession spate of strange to murder, causing death by lightning found a clue not the case, a mysterious man was assassinated, wrote that two horizontal blood after dead at a police station. However, the pressure of public opinion followed, Inspector Chen ordered reconnaissance. And Chen Tanchang at the same time, the showing interest, and Inspector Chen's son Chen Tiansheng. Born in Germany, after returning to the interpreter in the police station.
In the case of lightning of the survey, born from dead burned a piece of clothing, and from his pocket and incomplete picture to see something. Holding incomplete pictures of father and son, the inspector to verify in archaeology Professor Luo, Professor Luo learned from the monument on the background picture is the Mongolian word "mandate of heaven, both Yongchang Shou" means. Affected by this spell protects the mausoleum, general buried Mongolia khan.