Lin Mu thought over it and realized that he didn't know who was the mayor before this.
"I don't know Senior." Lin Mu replied.
"Hmm, then perhaps that is what we need to find out. That could be the key to the identity of the culprits." Xukong said.
Lin Mu nodded and started to move towards the exit of the tunnel. It was already starting to get a bit hard for him to breathe here and he understood that the air was thinning out. It would take a while before this area was breathable again.
But then he realized that the sludge pool will probably turn the air foul again, and he may have to repeat the same thing as before again.
'Wait, the foul smell was not just from here, was it? I was able to smell it on the very end that too beyond the river, where the air was fresh. The foul smell should have dissipated there, but there was still some of it in those tunnels.' Lin Mu thought.