Chen Chuan looked toward the other sentry tower. He saw the man there was still standing, but his expression was stiff. He immediately knew Ren Xiaotian had succeeded on his end as well.
He looked down from the watchtower and flashed his flashlight outward twice. At the same moment, Ren Xiaotian in the opposite sentry tower also sent a signal.
Wei Chang'an and Cai Si had already snuck close by. Seeing that the others had succeeded, they boldly climbed up and, one on the left and one on the right, easily dispatched the two guards at the gate posts.
Just then, Chen Chuan noticed something. He glanced down and saw a two-man patrol team rounding a corner from one side, holding a flashlight. Seeing them from above, he signaled down below with his hand and flashed his flashlight twice to the side.
