On a rainy night in Bianjing, the scholar-student Shen Zhaowei took out half of the forbidden picture left by her father ten years ago from a burnt ancient book.
That night, a fire broke out in the bookshop, the bookseller died violently, and the Dali Temple came to arrest people. The killer in the dark left only one sentence:
The picture shows Bianjing, and the Shen family is extinct.
Everyone said that her father secretly hid the border defense map and died in fear of crime. But Shen Zhaowei didn't believe it.
She escaped from Bianjing with the fragmented map and traced it along the ancient roads of the Yellow River, Luoyang, Tongguan and Qinling Mountains, only to discover that the "Mountain and River Map" was not a treasure map, but a secret national policy that could influence river defenses, grain roads, passes and the lives and deaths of thousands of people.
Some people want to use it to save the world.
Some people want to use it to kill the world.
And she wants the person who died ten years ago to speak again.
