In order to repair the leak in the water-operated palace, which symbolized the authority of the emperor, Chu Xiwu disguised herself as a man and sneaked into the craftsman's job as a supervisor.
The hydraulic loom she designed privately was robbed by Xixia spies.
Privy Council spy Feng Liye put a sharp knife on her neck when investigating the case: "Where is the Ji Kuo diagram?"
His eyes were piercingly cold: "The lying craftsman of the Firearms Bureau has been turned into charcoal in the fire... Will you be next?"
She tightly grasped the broken escape wheel in her sleeve with her palms: "I don't have the blueprints."
And behind the truth behind the missing drawings is a huge conspiracy - a shocking secret that can shake the country...
