The ten human divine ships ventured eight million li deep into the Primordial Forest.
This distance was naturally not much of a problem for the human powerhouses aboard the ships, more than half of whom were Great Powers.
However, what was shocking was that even after eight million li, the Primordial Forest remained the Primordial Forest. They had actually not yet truly exited it after so long.
Moreover, the closer they got to the depths of the Primordial Forest, the more they could sense an increasing number of terrifying auras flickering within it. Along the way, they had sensed the auras of over twenty demon race Divine King-level beings.
At the same time, they also sensed a fearsome Demon God King.
That terrifying Demon Race God King had glanced distantly at the powerhouses on the ten human divine ships, seemingly also aware that there were many supreme experts on the ships not inferior to it in the Divine King Realm. It merely watched from afar and did not attack.
This only served to heighten a sense of apprehension.
This Primordial Forest was extraordinarily unfathomable.
The deeper they went, Ye Chen and the others perceived an extremely terrifying sense of suffocation spreading from the very depths. Even the many human Divine Kings on the ten divine ships were no exception, their hearts pounding with fear as if some indescribably terrifying, great evil lay dormant and slumbering there in the deepest recesses.
The Vast Uninhabited Zone!
They had heard the guardian powerhouses at the border of the Mojie Empire mention it, seemingly referring to this endless forest land.
Furthermore, when the Mojie Empire powerhouses had mentioned the Vast Uninhabited Zone, they had clearly been extremely wary.
Even after the ten human Divine Kings shattered the Ancient Monarch's projection, they later clearly sensed an even more terrifying Monarch's heavenly might appear at the empire's border—a true Ancient Monarch had descended. Yet, it did not pursue them deep inside, seemingly harboring a deep wariness towards this Vast Uninhabited Zone.
Thinking of this speculation, everyone's hearts suddenly pounded with fear.
Even a dignified Ancient Monarch seemed so wary. What kind of peerless terror existed in the depths of this infinitely vast Vast Uninhabited Zone?
At the very least, it was at the Ancient Monarch level, perhaps even stronger.
Moreover, supreme experts at the Divine King Realm could be considered peerless powerhouses anywhere, yet they were stationed to guard the empire's borderlands. This clearly and implicitly spoke volumes.
Everything pointed to an unknown, terrifying calamity within the Vast Uninhabited Zone.
At this moment, Ye Chen had already stopped the divine ship and said solemnly, "I suggest we go no further. In the depths of the Vast Uninhabited Zone, I can sense a fearsome sense of crisis spreading. This sense of crisis is so terrifying it's enough to make me feel a fatal suffocation."
The others were startled. Even the Battle Saint King spoke up like this.
"I also sense it. That place is very dangerous. The feeling it gives me is no less than facing a true Ancient Monarch," the Divine King from the Xia Imperial Clan also spoke, his expression full of wariness.
The other human Divine Kings also nodded one after another, clearly unwilling to venture deeper into this place.
"Let's go. Leave this Vast Uninhabited Zone."
With that, the ten human divine ships turned and left, sailing in the opposite direction towards other regions. Only when they were sufficiently far away did everyone slowly let out a sigh of relief.
Being too close to the deepest parts, even Divine King Realm supreme experts felt a suffocating sense of crisis.
After traversing a full ten million li vertically, this time, the ten human divine ships discovered another majestic, towering border fortress. There were also many powerful auras present, with Divine Kings faintly discernible among them.
It was not the borderland of the Mojie Empire, but another region.
However, with the precedent of the Mojie Empire, the human powerhouses were much more cautious this time. They carefully skirted this area from afar and quietly entered the borderlands from another location three million li away.
All of this went unnoticed by the Divine Kings guarding the border and the other powerhouses, allowing them to breathe a sigh of relief. They hadn't expected that the human race, now possessing over a dozen Divine Kings and many Great Power-level supreme talents, would need to sneak into the borderlands like thieves.
Everything was because they were beings from the Ten Heavenly Realms Ancient Domain. Once they provoked an Ancient Monarch again, it would be a tremendous trouble.
Having successfully entered the borderlands, everyone disguised themselves. Naturally, the ten human divine ships were stored within their internal spaces.
Once they confirmed there was no great danger, they all separated from each other.
After all, they couldn't stay together forever. Each needed their own trials and to seek the various emperors' legacies.
However, they all left communication jade tokens with each other, forming a human alliance. If any one party encountered trouble, the others would immediately rush to their aid.
The human race was far more united than before.
Thus, they truly parted ways at this place.
The Senyue Empire was the empire within this borderland, as Ye Chen and the others learned through inquiries at the border.
The Senyue Empire's border was a massive city, quite prosperous and bustling, inhabited by cultivators of various races including humans, the demon race, beast race, and others. It was an ancient city with a large population, though compared to the Ten Heavenly Realms Ancient Domain, it seemed somewhat primitive, with only a few celestial palaces, divine halls, or floating divine islands.
However, being in such a borderland, there were also numerous powerhouses, experts as numerous as clouds, each clearly rich in combat experience and brimming with vigorous blood energy.
The Corpse Devouring Insect Emperor took the lead in gathering information and soon returned.
The Mythical Emperor Domain was what the local inhabitants called the Mythical Ruins Land.
The Mythical Emperor Domain consisted of Ten Great Empires, each possessing unparalleled power, all located in the central core region of the Mythical Emperor Domain. Each empire occupied an immense imperial domain spanning over a hundred million li.
However, the Mythical Emperor Domain was indescribably vast. The territory occupied by the Ten Great Empires was merely that central core region. Although still extremely vast and enormous, it accounted for less than one-tenth of the entire Mythical Emperor Domain.
Over ninety percent of the vast domain belonged to the Vast Uninhabited Zone, a taboo for the Ten Great Empires.
Even though over the years, the Ten Great Empires constantly waged war against each other, seizing territory, they nonetheless had a common enemy: the Vast Uninhabited Zone.
It was rumored that within the Vast Uninhabited Zone lurked a supreme existence capable of destroying the entire Mythical Emperor Domain. Throughout the ages, it had been jointly suppressed by the ancestors of the various empires, always unable to emerge.
But the Ten Great Empires also feared that one day this supreme existence would break free. Therefore, for ages, they stationed many powerhouses to guard the borders, including Divine King Realm supreme experts, constantly monitoring the Vast Uninhabited Zone to prevent a cataclysmic disaster from befalling the mortal world.
Because many tens of thousands of years ago, a cataclysmic disaster had occurred in the Vast Uninhabited Zone, nearly annihilating the entire zone and causing the deaths of billions of living beings. Of the original eighteen empires, nearly half directly vanished, and over half of the vast domain disappeared. Only then was the current peace secured.
Thus, throughout the ages, the Vast Uninhabited Zone had always been a taboo land that struck fear into people's hearts.
Hearing this, Ye Chen and the others all frowned. Their understanding of the Vast Uninhabited Zone was too scant. A forbidden land that could make even Ancient Monarchs wary was surely not so simple.