In the ninth year of Tianbao, an urgent secret report from the Anxi Protectorate broke Chang'an's peace. The secret report exposed the shocking conspiracy that "the secret recipe for longevity is actually extremely poisonous" and pointed directly at the web woven by the powerful officials of Tibet, Persia and the Tang Dynasty. The border guard captain, the daughter of Hu Shang, the frustrated widower, and the down-and-out scholar, four little people who had nothing to do with each other, were involved in the whirlpool because of a mysterious Kirin order. Within twelve hours, they must overcome the numerous murderous intentions in the 108 squares of Chang'an, and amidst the sound of curfew drums, they must uncover the hidden fire that can burn down the prosperous dynasty. Every step closer to the truth, death follows.
