There were only four of the hunchback monsters. Since Zheng Bingxiao's Rock Golem was clearing the path ahead, it did not detect anything out of place along the way. Therefore, Mu Nujiao, Mo Fan, and Liao Mingxuan, who were following behind, had assumed their path was clear. The tunnel was not wide at all, thus they should be able to notice any beasts easily.
To their surprise, the wall of the tunnel had already crumbled. There was a giant gap hidden by the black vines, preventing them from noticing it at the start.
Luckily, while Zhao Manyan was lighting up the area with his Brilliant Light, it had also blinded the creatures for a second. Otherwise, they would have lunged at Mu Nujiao earlier!
"It's the Cavern Slaves!" As expected of a genius, Qingqing was able to identify the beasts hiding behind the vines after only a quick glance.