[Resisting the Mongolian enemies + the troubled times of the late Song Dynasty + political intrigues + officialdom tactics] Jiading government office, meeting hall. Liu Bang walked into the meeting hall of the Jiading government office, handed a letter to Yao Yinmou, and said: "Sir, the flying pigeon from Chongqing passed the letter!" Yao Yinmou took it, peeled off the paint, and opened the letter to read. As he watched, his expression became more and more severe, and cold sweat broke out in large beads on his forehead...