The Divine Mechanism Bureau is a vital department of the Song Dynasty, overseeing criminal cases in both the martial world and the imperial court. Yet its chief, Feng Nantian, is a spy sent by the Great Jin, who has spent more than thirty years undercover in the Great Song...
Under Feng Nantian's direction as a mole, the Divine Mechanism Bureau has repeatedly solved strange cases and recruited a host of talented people.
At the same time, he has plunged the martial world into a bloodbath. The Deer and the Cauldron conceals a vast treasure; the Flower Treasury can bring the dead back to life and restore flesh to bone. The Blood Saber Ancestor slaughters his way across the land, Murong Fu's rebellion fails, Guo Jing loses Xiangyang, and the leader of the Moving Flower Palace, Lun, brings the martial world and the imperial court to their darkest hour...
A hidden dragon in the depths has ambitions beyond measure.
A dragon that has soared too high may yet regret it. Who knows what fortune awaits?