The depths of the cave

So that's why the undead couldn't detect these man-eating ants—they could turn invisible. However, even invisibility couldn't hide their life activities, and they would still be discovered.

Xiao Mu shot a laser from his finger, piercing the man-eating ant. Green fluid splattered out, corroding the surrounding ice and emitting white smoke.

"Their blood is highly corrosive," Xiao Mu warned. Alex then summoned the man-eating ant as a skeleton, placing it in front of Xiao Mu to clear the path.

At this moment, the Death Spirit had reached the end of the tunnel, where it encountered a fork. It sensed many invisible life forms around it.

The Death Spirit waited quietly for Alex to arrive. Suddenly, ice shot out from the tunnel behind, instantly freezing everything, revealing the invisible man-eating ants.