Their only threat was the flames, but they were not ordinary flames that could not be approached at all. Therefore, they could only obediently follow behind Chart and the others and slowly move forward.
While running in the swamp, they didn't dare to be careless at all, because they all knew clearly that they had stepped into a dangerous situation. If they were not careful enough, they were likely to die here.
When they were running fast forward, astonishment appeared on their faces. They found that the black smoke had actually dissipated a lot. They had thought that the black fog would trap them here forever.
However, they didn't expect that the black smoke would dissipate after they struggled a little bit, and they couldn't stop them at all.