C1039 Digging Tunnels

After following the caravans into the imperial city, the caravans had more freedom to arrange their time. Apart from the daily work during the day, the rest of their time could be arranged by themselves.

For the guards in the caravans, the night time was basically spent on the Red River Shore, forgetting to return.

The reason why Chu Tian chose the guards as his cover was also reasonable