The group turned at the sound and saw Zhang Shan climbing over the piled-up rocks into the pit, carefully shining his flashlight around.
That's when they clearly saw it: on the wall, toward the bottom middle, there was a hole the size of a fingertip.
Zhang Shan knocked on it a few times before trying to reach his hand inside.
"The other end of the hole is empty!"
He turned around excitedly and said.
Their spirits lifted, and Zhang Shan immediately reached out his hand, "Quick, Xiaoyang, hand me a grenade."
Thinking about the sturdiness of the place, Zhang Shan changed his request, "Make it three."
Xiaoyang hurriedly tossed them over.
Zhang Shan used his dagger to chisel away forcefully, barely managing to create an opening big enough to jam the grenades in.
Then everybody quickly ran backwards.
Only when they reached a safe distance did Zhang Shan pull his gun and shoot at the grenades, detonating them all at once.
