Xu Linghe led fifty thousands of soldiers to the Southern Front. Before leaving, Yan Shen told him over and over again to read the letter. But Yan Shen did not tell him that it was Madam Xu who got the map, because she did not want Xu Linghe to know the truth. Out of the Jin City, Xu Linghe was eager to see the letter. The letter in the arms was wrapped by oiled paper. Xu Linghe asked the soldiers to take a rest in the place, and he took out the letter cautiously. When opening the oil paper, ...