"Come out!"
Luo Chen lightly patted the gray pouch at his waist.
In an instant, two streaks of light flashed out and both knelt before him.
They were Black King and Tian Xuan!
"Master!"
"Master!"
Luo Chen nodded and pointed outside. "Using this hall as the center, explore everything within a thousand li. If anything unusual happens, use these talismans to report to me at all times."
Two talismans descended into the hands of the two demons beneath the cover of mana.
They were the Ten Thousand Li Sound Transmission Talismans Luo Chen had purchased from Lushan Jun years ago.
Within the Mountain Sea World, after the Human-Demon War of the Primordial Era, some battlefields had even extended deep into the Desolate Wastes.
When the war ended, many Primordial Cultivators had fallen in various places, without time to retrieve their corpses. Due to their differing abilities, some powerhouses had left behind inheritances before their deaths, which evolved into secret realms and cave abodes.
Even after Human Race cultivators established their dominion over the Five Continents, they had not necessarily recovered every one of those secret realms and cave abodes.
That was why the major sects of today kept discovering secret realms left behind by ancient cultivators, one after another.
And within those secret realms, the methods left behind before the ancient cultivators' deaths, combined with the changes of countless years, had caused all kinds of mutations.
Some suffered spiritual energy mutations, while the creatures inside evolved to extremes. In severe cases, even the flow of time differed. Not even high-realm cultivators dared enter rashly, and could only send low-rank disciples in to explore.
Luo Chen had already harbored guesses about this Fallen Devil Land.
The Sunken Sea outside, which guarded the secret realm, suppressed cultivators' Divine Sense. The secret realm