The way to break the black chain is very simple, as long as there is a Sky Eclipse liquid, this chain can be easily broken.

The so-called Heaven Eclipse Liquid is the most corrosive thing in heaven and earth, and no one knows how it was formed, as if it was a natural product of heaven and earth, with unimaginable corrosive power, even if a drop of a drop of the peak powerhouse of the God Realm was stained, it would be eroded into a white bone.

It is one of the most rebellious and terrifying things in heaven and earth, even if a mortal without cultivation gets it, it will kill a god realm peak in an instant.

However, although the Sky Eclipse Liquid was terrifying, it was extremely difficult to obtain, and even if Ning Chuan had lived for two lifetimes, he had only heard of it. If it weren't for the looting of the treasure house of Tianxin City in the first place, I'm afraid it would be really difficult for him to see this kind of thing.

With a flip of his palm, Ning Chuan took out a bottle of Sky Erosion Liquid from the treasure house of Tianxin City. The crimson liquid swayed slightly in the special transparent jade bottle, and it looked very ordinary. But Ning Chuan knew very well that he must not touch a trace, otherwise the consequences would be unimaginable.

He carefully pulled out the cork, and with the power of his soul, he plucked a sesame-sized grain of sky-eclipse liquid, and then dripped it onto the black chain.

Sneer......

The black chains, which Ning Chuan couldn't break with all his strength, suddenly rose up with a large cloud of smoke, and then melted at a speed visible to the naked eye. And inside the black chain, the endless defensive formation could not resist the Sky Eclipse Liquid at all, after all, this kind of thing was neither spiritual power nor divine soul power, and the formation could not play any role.

Bang Chang ......

In just a few breaths, the black chain broke in response, and the cultivator who had been trapped for an unknown amount of time also collapsed. He is too weak, his spiritual power and divine soul power have almost dried up, and his cultivation has reached the point of running out of oil and lamps, if it were not supported by his tenacious will to survive, I am afraid that he would have turned into a dead corpse long ago.

Ning Chuan took out a mild pill and stuffed it into this person's mouth, and then rescued the remaining dozens of people and fed them the pill. After a while, a glimmer of light bloomed on everyone's body, and the breath of life that was about to dissipate gradually stabilized.

These people were men and women, and their clothes showed a sense of the vicissitudes of time, directly telling Ning Chuan that they had been trapped here for at least a thousand years, or even longer.

"Thank you, Daoyou!" Everyone was lucky enough to pick up a life, and they all expressed their gratitude to Ning Chuan, but their tone still sounded weak.

In order to be safe, Ning Chuan just gave them some pills to ensure that everyone survived, and did not let them return to their peak state.

"Exotic Demon ...... Was it defeated?" After a moment of silence, someone asked excitedly, thinking about it, it seems that there is only this one possibility, if it is not for the defeat of the demon race, they will have no chance of survival.

"No!" Ning Chuan said in a deep voice, the invasion of the exotic demon clan has not officially arrived, so how can he say that he is defeated.

Everyone looked stunned and immediately showed disappointment, and even many people looked sad and desperate, and their eyes began to become numb and empty.

Ning Chuan glanced at everyone and said, "Who are you, why are you trapped here?"

An old man's eyes were a little confused, and he said hoarsely: "I am the master of a sect, three thousand years ago, I led the disciples of the whole sect to fight against the demon clan, but there was a traitor in the sect, and the old man was arrested here......"

"I am a Supreme Elder, five thousand years ago I went out to look for a treasure medicine, I was besieged by the demons, and I was finally imprisoned here......"

Dozens of cultivators were gossiping, and they all told their origins and the reasons for being trapped.

These people have different origins, and the time they have been trapped here is also different, the longest of which is tens of thousands of years, which can be traced back to the last life of Ningchuan, and the shortest is only a few years.

But no matter what, these surviving cultivators are all strong in cultivation, and the weakest are all at the peak of the God Realm, as long as they are restored to their peak state in time, they will definitely be a powerful combat force that will play a vital role in the future war between humans and demons.

Ning Chuan chatted with these people for a while, and learned from them that the Thirty-Third Heaven of the White Bone City was a huge and boundless altar, and there were countless halls like the one in front of him, and in each of them, there were at least hundreds of cultivators imprisoned by black chains.

No one knew why the demons did this, but these dozens of surviving cultivators really felt that the pitch-black chain was not only extremely strong, but also seemed to have a strange power, constantly sucking their life force and spiritual power.

Hearing this, Ning Chuan's heart was suddenly taken aback, if things were really as these survivors said, I was afraid that the demon clan was preparing a big conspiracy, and countless cultivators were caught here, providing life essence and spiritual power for the black chains far away, what kind of huge energy would it be? I'm afraid it would be enough to retreat a mortal to the level of the Heavenly Venerable Realm!

In order to find out what he really thought, Ning Chuan injected a spiritual power into the black chain and marked it with the soul of the Heavenly Venerable Realm.

Airplanes......

The black chain seemed to have life, and it instantly devoured Ning Chuan's spiritual power, and then the chain had a black light flashing, sending the spiritual power into the end of the chain and submerging into the huge stone pillar.

When Ning Chuan's divine soul touched the stone pillar, he encountered a slight obstacle, but under the soul of the Tianzun Realm, the power of the obstacle was instantly resolved. Ning Chuan's divine consciousness descended along the stone pillar, deep into the ground, and I don't know how long it took, a boundless underground world appeared.

This was a strange world, the sky and the earth were dark red, as if dried blood, and the strong bloody aura was mixed with murderous aura, instantly enveloping Ning Chuan's divine sense.

At this moment, Ning Chuan only felt like falling into an ice cave, and then in a flash, a mountain of corpses and a sea of blood appeared. If Ning Chuan's soul hadn't already reached the Heavenly Venerable Realm, I was afraid that the overwhelming murderous aura would instantly affect his Dao heart, and then his whole person would fall directly into the Demon Dao.

As soon as the sea of consciousness was shocked, Ning Chuan woke up from the strong killing intent, and then carefully controlled his divine consciousness and observed the entire underground world.

At the end of the blood-colored earth, there was an endless sea of red, and it was from here that the strong bloody qi and murderous intent diffused.

Ning Chuan's divine consciousness continued to extend forward, coming to the sky above the red ocean, and then his heart was shocked and surprised. The ocean below is actually made up of the blood of endless creatures.

"Blood gathers into an ocean, how many living beings do you have to kill to have such a large amount?" Ning Chuan's face was full of anger, and his heart was full of murderous intent.

Knock Knock...... Knock Knock......

At this moment, the sound of something suddenly beating suddenly came, very faint, and it was difficult to detect if you did not listen carefully.

Ning Chuan listened attentively, and after a while, he found that the sound came from the depths of the sea of blood, and because it was too far away, he couldn't see what it was.

The power of the divine soul continued to extend forward, and half an hour later, a huge island appeared at the end of heaven and earth, with a radius of hundreds of thousands of zhang, and a majestic altar stood in the center of the island, which was particularly dazzling.

And at the top of the altar, a dark red heart dozens of feet high was beating rhythmically, and the previous knocking sound was made by it.

Around the altar, the black pressure is full of demons and puppets, and at a cursory glance, there are at least tens of millions. They knelt on their knees around the altar and muttered words as if they were praying and calling.

Knock Knock...... Knock Knock......

The huge heartbeat became more powerful, and with each beat, dragons formed by blood clotted rose from the sea of blood, converging towards the huge heart, and then being directly devoured by the latter.

Seeing this, Ning Cheng was taken aback, and had a very ominous premonition, the demon clan seemed to be resurrecting a very terrifying existence, just a heart, which made Ning Chuan feel cold and his hair stood on end, and he was powerless to resist in his heart.

"Could it be the heart of the Demon Ancestor?" Ning Chuan's expression was solemn, so he guessed, he had the impression that only the Demon Ancestor could have such a monstrous and ferocious flame, and just one heart could make him feel a mortal threat.

Just when Ning Chuan's heart was very uneasy, the tens of thousands of demons and puppets under the altar in the extreme distance suddenly said loudly: "My lord is immortal! Your most devout people are willing to sacrifice their bodies and souls in exchange for your resurrection...... Please use your invincible power to shine on the whole world and make the demons the true masters of this world!"

Puff puff......

As the pious and frantic prayers fell, the demons and puppets exploded into a mist of blood, and then flew towards the altar, where they were directly devoured by the huge heart.

These demons and puppets are not afraid of death, they go forward one after another, and in just a few breaths, millions of people have sacrificed themselves. It was a pure and terrifyingly large force that shook the void and reversed yin and yang.

Knock Knock...... Knock Knock......

The huge heart seemed to have taken a great tonic, beating more powerfully, and the sea of blood around the island suddenly raged, turning up huge waves more than ten zhang high, and rivers of blood rose from the sea of blood and flew quickly towards the heart.

Knock Knock......

The sound of the heartbeat became stronger and stronger, and then it directly shook the void, forming a circle of spatial ripples, wanting to strangle everything.

Airplanes......

A terrifying spatial ripple struck, heading straight for the place where Ning Chuan's divine consciousness was, and that terrifying energy fluctuation made the souls of Ning Chuan Tianzun Realm feel oppressed.

"It's too powerful! A heart has such might, this demon clan has definitely reached the Tianzun realm before his death, and even surpassed the Tianzun realm!" Ning Chuan's expression was solemn, and he suddenly decided that he must stop this sacrifice, otherwise when that heart wakes up, he is afraid that the catastrophe between heaven and earth will come in advance.

“…… Please use your invincible power to shine on the whole world and make the demons the true masters of this world!"

On the huge island, endless demons and puppets are still praying, and more and more demons and puppets are sacrificing themselves to provide life essence and blood to the heart on the altar.

"We can't wait any longer!" Ning Chuan frowned, and then his divine consciousness returned to his main body, and he suddenly slammed his fist into the ground of the main hall.

Click......

A bottomless crack suddenly collapsed, and Ning Chuan dodged into it, heading straight for the boundless sea of blood, the huge heart of that island.

Everything was as his divine consciousness had seen before, in the depths of the boundless sea of blood, on an island, thousands of demons and puppets were kneeling on the ground, worshiping the huge heart on the altar.