These traces reminded Yang Bo of the scene he had seen last time—the Mutants herding their livestock.
Yang Bo had a feeling that the reason these Mutants had survived until now was probably because the Alliance had not gone all out against them. Even he could think of plenty of ruthless methods to wipe them out.
Of course, perhaps the Mutants had some unknown methods of their own.
The mecha moved swiftly through the passages of the Underground World. Sometimes, the Underground World had one major drawback: certain places were narrow, and the farther one went, the tighter they became. The chances of running into a dead end were high.
That was why Yang Bo followed the traces. Paths with such traces were basically unlikely to lead to a dead end.
As for getting lost, Yang Bo now had some ways to make it back to the surface safely. Mainly, he could use them to screw over the Justice Gang behind him. Those guys were simply unreasonable. It was obviously just a game, yet they still had to interfere with him.
Perhaps because of his previous life, he hated people who talked big without understanding the situation most of all.
"Just as I thought, something's going on." Less than ten minutes later, Yang Bo heard a faint sound. Its frequency was somewhat similar to the horn calls he had heard in the sinkhole.
In other words, someone was driving or attracting these creatures.
Yang Bo knew that sound waves could attract or drive away creatures. On Earth, some people used such methods to hunt birds and other animals, or to drive away wild beasts.
"What kind of communication method does this Mecha Game use? Why is my radar so unreliable down here, yet the game feed has no delay or