How Did He Manage To Find Out?

  Su Ying had already captured Xie Rui in the northern wilderness, yet those 1,000 men from the Chu State who were supposed to escort her were still on their way.

 They hurried along the way and finally approached the border.

 Su Ying had divided the 1,000-man convoy into several teams. They were not in contact with each other initially, but now that they were almost at the border, they began to contact each other.

 The most important thing was to contact Su Ying. They wanted to know which team Su Ying was hiding in and what they were going to do next.

 Previously, Su Ying had only told them to send her a letter when they arrived at the border city. The letter had been sent out the night before, but they had not received any reply yet.

 Since they didn't receive a reply from Su Ying, they could only secretly contact each other and look for a relatively secluded place to meet up.