Chen Ming watched as the dragon king gritted his teeth and followed everyone out because even the man knew he couldn't find the former in any way. Long Yue could tell Chen Ming's presence was there, but when he used up his powers to locate the man, he just couldn't find him there.
Even if they searched this library physically, they wouldn't be finding a single hair on the human's body. Thus, he also knew the devil lord was right. That's why he also walked out with others, knowing full well there was no way to bring him out this way.
Chen Ming released the breath he was holding as he heard the alarm beeping off in his head. He knew the time to use those pills was over. Thus, he quickly pulled out that cloak and wore it on his body, covering himself from head to toe.
At this time, he didn't care a single bit about those fuckers and only wanted to focus on the next task. Thus, he pushed open the forbidden door and started searching for merfolks.