The Silk Road's top-secret spy list "Guiyi Pu" was lost last night, and the new guard Pei Muzhi discovered that the city was full of Hu merchants, tourists, singers, monks and even traffickers and pawns, but no one could trust it. Everyone could be a hidden enemy pawn. Between morning bells and dusk drums, the camel bells of the Western Regions rang, and a secret order came quietly: "At three quarters of noon, kill the painter." And the most mysterious painter in the city has long disappeared in the light and shadow of the Thousand Buddhas of the Mogao Grottoes...
