A few minutes later, two police officers came over with equipment and distributed walkie-talkies and headlamps to Qi Yun, Director Hua, and Duan Pingyu.
Captain Wu personally checked their equipment and reminded them once more, "Make sure to be safe!"
Qi Yun nodded heavily, "Don't worry!"
This time, whether or not they could find that mirror down there, he owed Captain Wu a big favor. Letting them in privately like this posed a significant risk for him.
The three of them bent down and crawled into the tunnel. The beam of the headlamp pierced through the darkness. Director Hua, who was familiar with the path, led the way, Duan Pingyu walked in the middle to look after both sides, and Qi Yun followed closely behind.
Occasionally, tiny grains of sand fell from the gaps between the bricks, making slight sounds in the passageway.
