Three figures landed at the side of the small creek. They took out their water flasks and filled them. No matter how strong a cultivator was, they still needed to drink water.
Lin Feng concealed himself on top of a large tree and right now, he finally saw the appearances of the three figures.
These people were three middle-aged cultivators with long swords strapped on their backs, appearing like sword immortals of the legends.
One of them spoke, "This time, the ambition of the Blood Devil Emperor and Blazing Flame Demon King is extremely great. They wish to awaken the last remnant soul of the Netherworld Emperor in the human world and construct a new supreme devil body for the Netherworld Emperor. As one of the seventy-two emperors in the Medieval Era, his devilish might tower up the sky and if he really was revived, countless lives would definitely be lost."
"Now, the city lord of the Skysaint City, Murong Huanyu, has personally acted to obstruct the Blood Devil Emperor, and the city lord of Sunmoon City, Liu Ziyu, has also acted to stop the Blazing Flames Demon King. These two powerful monsters have no way to personally participate in the revival ceremony of the Netherworld Emperor. Currently, the one hosting the ceremony is none other than the eldest disciple of the Blood Devil Emperor, the Nine-headed Asura. We have to stop it."
"Let's not delay. We should hurry and move out."
Swish, swish, swish~
As the sound of their voices faded, the three of them soared into the sky and soon vanished from sight.
"Reviving the Netherworld Emperor?" Lin Feng had a look of shock on his face.
He recalled a calamity that had happened back in the Medieval Era.
Back then, the demons and devils were like a plague that had spread throughout the Skymartial Continent.
This calamity had caused countless innocents to die. Countless human-aligned powers had been destroyed as the demons and devils occupied the entire Skymartial Continent.
On the devil side, there were seventy-two devil emperors, and one of them was none other than the Netherworld Emperor. The Netherworld Emperor was an extremely terrifying character who was ranked third out of the seventy-two devil emperors.
Back then, the human race had been in an extremely dangerous situation and on the verge of being wiped out.
During crucial times, eight experts of the human race had emerged as powerful forces to be reckoned with. They had then led the human race and counterattacked the devils and demons before finally gaining victory.
These eight ancestors were respectfully known as 'The Eight Heroes of the Medieval Era."
Tens of thousands of years had passed. Experts of the Medieval Era had long since perished. But the devil races were in possession of a terrifying secret art that could revive the experts of the past.
If a heaven-defying character like the Netherworld Emperor was revived, it would undoubtedly be a calamity.
"I should go into the depths and take a look!"
Lin Feng leaped down the tree and traveled toward the depths of the subterranean world.
Ten days later, he came before an ancient city.
This ancient city was extremely vast and resembled a desolate gigantic beast that prostrated on the ground. It gave off a thick and heavy pressure.
There were densely packed demons and devils patrolling its surroundings.
For example, blood-sucking bats, flying asuras, undying yakshas, etc...
The entire ancient city was so heavily guarded that not even a drop of water could trickle through.
There were also many cultivators hidden in the forest.
"As expected, this is the place, the nest of the devils and demons. Are they planning to revive the Netherworld Emperor here?" Lin Feng hid in the forest and stared in the direction of the ancient city.
In the forest, the atmosphere was extremely tense. Clearly, many strong powers came here from the Eastern Commandery Divine Province, and they were waiting for a chance to attack the city.
And at this moment, in the depths of the ancient city, within the living room a vast, heavily guarded manor, a tall and imposing figure with nine heads held his hands behind his back as he stared at a diagram.
On the diagram. Nine male figures wearing emperor robes could be seen.
These nine figures were extremely vivid and life-like and seemed to be nine sacred emperors. With a glance at it, people would involuntarily feel an impulse to kneel in worship.
Thud, thud.
Over ten demons and devils only glanced at it for a few moments, but they soon couldn't endure the pressure from the diagram and involuntarily knelt on the ground.
"Sir, what diagram is this?" A devil expert standing at the side of the nine-headed asura asked. This person wasn't forced to kneel after he had glanced at the diagram, but he could still feel the terrifying fluctuations.
"This is the Immemorial Nine Emperors Diagram," the nine-headed asura spoke.
"Ah? The Immemorial Nine Emperors Diagram? It's actually this treasure. The nine figures in the diagram are the nine saint emperors of our devil race?" asked that devil expert with a look of incomparable shock on his face.
"That's right. They are the nine saint emperors of the ancient era. It's said that this Nine Emperors Diagram possesses a huge secret. However, despite researching it for so long, I wasn't able to find out anything. This Nine Emperors diagram is a treasure that vanished together with the Netherworld Emperor back then. Now that it has reappeared, it must be waiting for the Netherworld Emperor to be revived. At that time, I will return the diagram as a gift to the owner," said the nine-headed asura.
"Why don't sir take it for yourself?" A devil beside him asked.
The gaze of the nine-headed asura flickered. After that, he spoke, "Let's revive the Netherworld Emperor before we speak of other things. How is the arrangement of the Nine Heavens Soul Returning Formation?"
"I think it's almost done," that devil replied.
"Here to report." At this moment, someone arrived outside.
"Enter."
A skinny and old demon walked in. "Sir, the Nine Heavens Soul Returning Formation has been completed."
"Very good. I will now head over to manage the formation." The nine-headed asura walked out.
"Sir, should we keep the Nine Emperors Diagram?" that demon leader asked.
"Haha, don't need. This is a supreme treasure of the devil path, whoever touches it will die. Even if Murong Huanyu from Skysaint City came here, if he dared to touch the Nine Emperors Diagram, he would die for sure. I actually hope that experts from the human race would come here to seize this diagram away. At that time, the diagram would be able to kill them and we can save our strength."
The nine-headed asura laughed loudly. After that, he transformed into a beam of light and shot out.
The demons and devils here felt their hearts trembling.
No one expected that the Nine Emperors Diagram actually contained such terrifying killing prowess.
"Let's go. We will act as protectors for the lord!" roared the demon leader.
A group of powerful demons and devils all rushed out as well.
In the center of the ancient city, there was an incomparably gigantic sacrificial platform.
Meanwhile, at the center of the sacrificial platform, there are a total of nine gigantic black-colored cauldrons.
Under the cauldrons, there's an earth fire burning blazingly.
These nine gigantic cauldrons were placed in the Eight Trigram format. A formation was layered in their surroundings.
This was a type of heaven-defying formation named the Nine Heavens Soul Returning Formation. It was also a type of extremely vicious formation.
In order to activate this formation, a total of 199,999,999,999 souls were needed. One more additional soul wouldn't work, neither would one less.
Hence, every time the Nine Heavens Soul Returning Formation was activated, a bloodbath would occur.
And now, the demons and devils had invaded the Eastern Commandery Divine Province and begun to slaughter countless lives wantonly.
The purpose behind their actions was precisely for the sake of today. They wanted to activate the Nine Heavens Soul Returning Formation to revive the Netherworld Emperor.
The nine-headed asura floated above the nine devil cauldrons. He then took out a bottle gourd.
After that, the nine-headed asura opened up the bottle gourd.
Countless souls that were densely packed together flew out.
"Ahh, I died such a miserable death."
"Why? I don't wish to die."
Miserable screams, shrieks, and howls rang out. A cold and gloomy wind raged through this entire space.
Even Lin Feng who was hiding in the forest outside the city could hear the sobs and wailing of these souls.
"What are they trying to do in the ancient city?" Lin Feng felt his scalp going numb.
The nine-headed asura then drove all the souls into the nine devil cauldrons.
"Nine cauldrons incinerating souls, reversing fate, calling out to the heavens, reviving the Netherworld!" All of a sudden, the nine-headed asura roared.
"Nine Heavens Soul Returning Formation, activate!"
The roar of the nine-headed asura shook the sky. Within the nine devil cauldrons, incomparably powerful waves of energy gushed forth, channeling themselves into the great formation in the surroundings.
Bzz~
An ancient and mysterious evil formation was now activated.
Boundless devil qi towered up the sky. Within the devil qi, an aura so powerful that it could destroy the heavens and earth radiated out.
A low-sounding roar echoed.
"Who? Who is the one that awakens the last remnant of Netherworld Emperor's soul that has been sleeping for countless years?" The low roar echoed through the air.
"The Netherworld Emperor, they are really trying to revive the Netherworld Emperor!" Lin Feng had a look of fear on his face.