Xu Shu Fled Cao Ying in the Three Kingdoms to Help Liu Bei Achieve Great Success

In the thirteenth year of Jian'an, Xu Shu entered Cao Ying as his mother. Cao Cao sneered: "I know that Yuan Zhi has unparalleled ingenuity, how come he is like this?" Xu Shu kept silent and was placed under house arrest. The military advisor drank wine and failed in his duties. During the day, he pretended to be dumb and patrolled the camp, recording the deployment of defenses; late at night, he drew charcoal drawings of Cao's camp's military strength. Xu Chu made a surprise inspection, and Xu Shu hid the picture in his lapel. The moment the clothes were torn, the firelight reflected the hidden ink marks...