This historical mystery and science fiction novella begins with the Ming Dynasty's "Carpenter Emperor," Zhu Youxiao, falling into a lake. A dream and the appearance of two mysterious figures bring a secret organization, long hidden from the world, gradually to light. Its members can build machines and predict the future. They seek to lead the Carpenter Emperor in changing the course of events by other means, and an experiment to rewrite the fate of the Ming Dynasty is about to begin. But deep within the Forbidden City, another earth-shattering conspiracy is already seeking to overturn everything...
Combining science fiction and fantasy, this story links together more than 270 years of Ming history. It presents, across the sweep of time, famous events such as the Battle of Poyang Lake, the Jingnan Campaign, the Red Pill Case, the Tianqi Explosion, peasant uprisings at the end of the Ming Dynasty, and the fierce battles in Liaodong. It seeks to explore the historical course and causes behind the rise and fall of the Great Ming, while also examining whether technology could be used to change history.