The Sixth Hunting Ground was definitely much gloomier than the First Hunting Ground. 

It was especially so with almost no solid ground below his feet. The Sixth Hunting Ground was almost entirely made of swamp land. The strong, rancid odor emitted by the swamp was nauseating. 

The mud and soil were tumbling, revealing the bones of humans from time to time. However, there wasn't any remains of a demon. Based on this, one could tell the huge difference in identities between the hunter and the prey in the Supreme Hunting Ground. Demons would basically never face any danger of death in this place. 

As for cultivators, their numbers were dwindling despite constant replenishment. It wasn't that they weren't sufficiently strong, but they were simply subjects for the trials of demons. 

Walking on the endless swamp amidst the grey fog, Wu Yu truly felt how horrific demons were. As there were too many demons, the surroundings were shrouded in demonic aura. In such an environment, it was extremely difficult to tell the location of any demon. 

"The entire Sixth Hunting Ground should all be swamp. Whether it’s cultivators or demons, they would be a target if they flew in the skies. Considering this, all the existences should be hiding within the swamp at this moment!" 

It was at least so as when...