Wu Feng had already set up a barrier here, so none of the auras inside could seep out.
Only cultivators at the Quasi-Saint level who came close could detect anything, but such opportunities were exceedingly rare—practically nonexistent.
That was because the Quasi-Saint-level demons were all focused on cultivation and would not casually leave their territories.
They had already learned through the Demon King that a tremendous battle would soon break out between the demon race and the Heavenly Court.
To survive this calamity as best they could, every one of them had resolved to cultivate diligently.
Although reaching the Saint level was extremely difficult, they could still improve to a certain extent during this period.
That way, their chances of surviving the calamity would grow greater and greater.
As time passed, Wu Feng's thoughts entered the minds of these demons and began searching through their memories.
Before long, he had obtained quite a bit of valuable information from their memories.
However, this information was still limited in scope. At the very least, Wu Feng now knew that a Quasi-Saint-level great demon existed nearby.
That fellow had been cultivating in seclusion all along and paid no attention whatsoever to matters outside.
Unless a Quasi-Saint-level cultivator entered his cave dwelling, he might choose to retaliate. Otherwise, nothing had anything to do with him.
After figuring everything out, Wu Feng was extremely satisfied. Most importantly, he had gained a certain understanding of the forces in this region.
After obtaining these gains, Wu Feng knew that he could now kill all these demons, because keeping them around was completely useless.
Just then, extremely pained expressions appeared on the demons' faces one after another. They could even sense the aura of death.
Yet there was more confusion in their eyes. Several of them struggled to