Deep within Deer King Valley, sunlight filtered through mottled leaves, casting countless coin-sized patches of shade.
One man and one beast walked toward an enormous ancient tree.
Just as they were about to crash into the tree, the pair vanished strangely before it.
The world inside the tree suddenly opened up. It was a seemingly bottomless tree hollow, and farther in lay a massive Stone Chamber.
The Stone Chamber had been built with great regularity, much like a cultivator's cave abode. It was simply more rudimentary and more spacious.
"You know formations too?" The man and beast were naturally Ye Jingcheng and the Rhino Deer Demon King. Ye Jingcheng could not help asking.
"Please forgive this one's clumsy skills, Master. I studied for over a hundred years and only learned a few tricks to fool the eye." The Rhino Deer Demon King mocked itself.
Its formation was, at best, a Second-Order formation.
Before other Demon Kings, it could naturally be called exceptionally gifted, and it was quite willing to hear their praise.
But before Human Race cultivators, its formation truly was not worth mentioning.
Any Purple Mansion Formation Master could crush it with ease.
At most, it was a Spirit Beast capable of persevering in its studies.
After all, Spirit Beasts possessed pitifully poor talent in the Four Arts of Cultivation.
"Are there many Monster Beasts that know formations?" Ye Jingcheng asked.
"Not many. But beyond the Sky Abyss Mountain Trench, there should be quite a few." The Rhino Deer Demon King fell silent for a moment before answering.
"Sky Abyss Mountain Trench?" This was Ye Jingcheng's first time hearing the name.
"The Sky Abyss Mountain Trench is the boundary between the territories of the Sky Roc Demon Emperor and the Black Crocodile Demon Emperor. Beyond the trench lies the