Because the fog was thick, everyone had to rely on their spiritual senses to fight with the monsters. These monsters relied on fog to gain more advantages, and they could hide in the fog to sneak attacks on those whose strengths were comparable to theirs.
They successfully made Long Tingfeng, Bai Tingguang, and the others have headaches. It was true that the situation was getting better, but it immediately changed because of this thick fog, and they seemed to be getting weaker the longer they stayed in the fog.
They grinned evilly and admired their king's scheme. Their king was clever and sensed the strong breath from some of these humans, so their king borrowed the power from the Fog Tree monster in the mountain to confuse these humans' minds and weaken their strengths.
The longer that they inhaled the fog, the more their bodies weakened, and they would soon lose the ability to fight.