In the eighth year of Zhenguan, Jiang Wuya, a historian from a poor family, overturned the case for his father and plunged into the undercurrent of Chang'an. He traced the real culprit, but was shocked to find that he was never a chess player, but the bait that Li Shimin had raised for ten years. The secrets of the Xuanwu Sect, the restoration of the Xiao family, and the bloodshed in the East Palace, this volume of history hides the emperor's intentions and half a lifetime of blood and tears.