The Secret Case of Zhenguan: Underground Chang'an

In the twenty-third year of Zhenguan, earthquakes occurred frequently in Chang'an City, and three unsolved cases coincidentally pointed to the same word - "earth rumbling." Pei Xuan, the young minister of Dali Temple, was ordered to investigate, but found that behind every corpse that died in a strange way, there was a deeper secret: a piece of paper appeared out of thin air that said, "The prince inherits the throne, neither heir nor eldest son, neither human nor ghost." When he entered the palace late at night, he saw with his own eyes the ancient bronze door buried twelve feet underground; and what was imprisoned inside the door was an unknown being who fed on human emotions and had slept for thousands of years. The deposed prince Li Chengqian was used as a sealed "container" and was trapped in a stone chamber under the Taiye Pond for twenty-three years. Xu Jingzong, the Minister of Rites, used his body as bait and left the last words "Read it for me" before his death. In order to protect the lifeblood of the city of Chang'an, Pei Xuan was secretly ordered by the new emperor Li Zhi to form the "Earth Security Bureau", leading the descendants of the coroners, commentators, and sorcerers to go deep into the underground tunnels and palaces, and step into the burning giant tree in the ruins of Luoyang. That thing has no shape, no good or evil, but it has learned everything about human beings - greed, fear, desire, and the most deadly "hope". When Pei Xuan discovered that the golden mark was planted in his body, and when the thing said "Don't go", "I'm afraid" and "I want to go home" in his dream, he realized: the bronze door is not to close it, but to close us. This is not a war to eliminate evil, but a symbiosis that lasts for thousands of years. The city of Chang'an moves one mile south every year, and the Department of Land Security is passed down from generation to generation, and the little golden tree growing out of the ground is remembering all the forgotten tenderness on behalf of mankind. ——When the city itself becomes a lock, who will reveal the secret?