The Rat Men Also Had Strong Experts

After confirming that the underground part of Black-corner City was probably a hundred times larger and more complicated than the underground part, Meng Chao became really excited.

He sniffed the special scent that the cloak gave off after soaking in the secret medicine. In the pitch-black darkness, he advanced nimbly like a bat, undisturbed.

Every time he reached a fork, he only needed to take a few deep breaths. According to the density of the scent, he could always find the right path.

Gradually, after drilling through a few collapsed tunnels with difficulty, the walls of the surrounding tunnels became dry, spacious, and firm.

The walls of the pipes buried in the shallow surface were like bricks or clay. After years of neglect, the rainwater seeped in and naturally became a mess of mud.