This karst cave is connected to the mountain, and the further you go, the lower the terrain becomes, until the two of them drill through a foot-wide stone crack and pass through a natural road in the mountain, and the space in front of them suddenly becomes empty again.

In front of them was a long stone chamber, the rock floor was smooth and clean, the front of the stone chamber was extended to the sides, there were three stone steps spread out, and the front was a three-foot-high black stone platform.

In the center of the stone platform is a nine-foot-tall statue depicting a humanoid creature with a blurred face, a crooked body, and twisted limbs, giving people a sense of harmony but asymmetry.

Around the stone platform, there are three square stone pillars half a zhang high, the surface of the stone pillars is covered with blood-colored black light, and when you look closely, you will find that each stone pillar has a different picture carved on it.

The first picture is of a headless man, kneeling on his knees, as if praying to the heavens, holding his hands up, and in his palm is his own head, and on this indescribable head stands a small black figure.

The second picture shows a group of people entangled in black mist, all expressionless, stepping into a dark gate, which is as deep as an abyss, and they can't see anything, and they don't know where it leads.

The third picture depicts a large bird, which is covered in endless black flames, but the most amazing thing is not here, but that it has nine heads, each of which presents a different posture and expression.

"Someone is offering sacrifices here. Wen Lan seemed to be a little unconfident and said, but the trace of horror in her tone could not be concealed, and her delicate face immediately turned a little pale.

"Sacrifice?" Wei Zhen heard the name for the first time, and looked at him with puzzled eyes.

"Sacrifice is an extremely cruel ritual, sacrificing the lives of others to other beings who are stronger than oneself, in exchange for some kind of reward that one hopes for, which is the greatest taboo in the human world. ”

When Wei Zhen heard this, he immediately remembered the nearly 100 corpses outside, but those people did not have a single wound on their bodies, and there was no blood flowing out, and the corpses could have been left intact if there were no wild beasts breaking in.

Wen Lan seemed to see the incomprehension in his heart, and his tone paused slightly before he continued: "Because they have suffered a soul sacrifice that is more cruel than the blood sacrifice. ”

He seemed to think of something very terrible, and his face couldn't help but turn pale again, but he couldn't help but say it after all.

"It's best to forget about this matter as soon as possible after you go back, and I will too, and don't mention it to anyone, including Du Xiaoqiu. ”

After Wen Lan finished speaking, she immediately walked out quickly, as if she was not willing to stay here for even a moment.

Wei Zhen wanted to ask him again how he knew this clearly, but looking at Wen Lan's expression, he knew that it was a vain question to ask, and he couldn't get the answer he wanted.

When the two of them crawled out of the underground cave world, the sky outside was already bright, and the two of them slightly discerned the direction. It turned out that they had unknowingly come to the back mountain of Cangyan Mountain, but fortunately, it was only ten miles away from the slave courtyard.

When they arrived at the slave master's steps, the two hurriedly parted ways and went about their own business.

After a month, Wen Lan sent a bottle of "Yunling Pill", and without saying anything, he left directly. Since the two of them returned from Wanhua Mountain that day, he began to keep a certain distance from Wei Zhen as usual.

Wei Zhen silently looked at his departing back, and there was a faint sense of loss in his heart, but as for the reason for the loss, even he couldn't tell what it was.

"Maybe that's what he was!"

Wei Zhen thought to himself.

After a few days, his mind was soon all devoted to cultivation.

With the middle-grade spirit stones stolen by Xiao Heihei and the "Yunling Pill" sent by Wen Lan every month or two, Wei Zhen's cultivation quickly improved.

After the bone sacrifice in the body reached sixty percent, when it was able to meet the requirements of the realm of bone refining, Wei Zhen gave up the pursuit of the extreme realm behind him and decisively launched an attack on the spirit master realm.

With the opening of the ninth branch vein, the next step he urgently needs to do is to connect the nine branch veins in his body, so as to form the first unobstructed artery connecting the body with the outside world - that is, the Tai vein, one of the twelve main veins, and completing this step requires a lot of spiritual power to support.

Wei Zhen deliberately kept all the bottles of "Yun Ling Pill" that Wen Lan had recently sent, and prepared to use it when attacking the spirit master.

In addition, the "Secret of Controlling the Spirit" issued by the Nuyuan to each disciple also describes the details that the spiritual priest must pay attention to when opening the first main vein in his body.

Wei Zhen had started preparing a month ago, thinking that he would be able to successfully advance to the level like everyone else.

However, until the medicinal power of the last "Yunling Pill" was dissolved and absorbed, the last node connected by the nine branches of the Tai Vein was still a little short and could not be broken.

Cold sweat continued to ooze from Wei Zhen's forehead, he had clearly realized that he was about to be unable to support it, although success was in front of him, but it seemed to be far away, in the final analysis, after all, his own mental power was not pure enough, and his experience and skills in controlling spiritual power were a little worse.

Almost at the moment when he was about to despair, a wisp of extremely dense fiery spiritual power suddenly rushed out of his sea of qi and rushed directly towards the last barrier between the branches.

A soft sound came from his body, like a chick piercing the only remaining layer of the eggshell, and the nine branch veins finally joined together at this moment, turning into Tai veins and converging the sea of qi.

The slightest trace of spiritual energy poured in from the outside world in a large amount, and along this arterial road that had just formed, it was converted into spiritual power by itself in the sea of qi, making up for the huge consumption before the breakthrough.

"I'm a spirit master!" Wei Zhen was overjoyed, but he didn't dare to move his body in the slightest, allowing his body to continue to breathe in spiritual energy and consolidate the spirit master realm.

"It turns out that Brother Fan gave me a wisp of spiritual power that day, and the purpose is this!" In the interval between the recovery of weakness, Wei Zhen finally figured out the source of the wisp of spiritual power that helped him successfully advance to the spirit master, and his heart was warm, and a tall and rugged figure gradually appeared in his mind.

When the first cold winter snow of Cangyan Mountain gradually fell silent, Wei Zhen stood up, the breakthrough was finally over, and his realm stabilized in the realm of spirit masters.

Wei Zhen began to slowly examine his body—a sign after becoming a Great Spirit Master. Another benefit of becoming a Great Spirit Master is that you can open the "Spirit Eye", which is a very practical little skill.

Wei Zhen saw the so-called "sea of qi" for the first time, shrouded in a mist of spiritual energy, and the Tai vein started in the palm of his left hand and ended here, just like a river coming out of the land and ending in the sea.

The bones in his body that had been refined by the method of bone refining were completely different from other bones that had not yet been sacrificed, and the color showed a special crimson blue, all of which were clearly displayed in his consciousness.

In the telekinetic space, in the small world on that side, three wisps of telekinesis flashed brightly, and here was seven or eight points similar to the empty world that Wei Zhen had inexplicably entered several times, and it was also gray and gray, and the fog was floating.

If he hadn't realized where his mental power was, he would have suspected that he had entered that inexplicable world again.

Wei Zhen carefully controlled a wisp of telekinesis to explore this newly discovered world, and only a small white light cluster floated quietly in the distance.

"What's that?" Wei Zhen was surprised.

As his mind fluctuated, a slight ripple rippled through the gray mist. He didn't dare to rush forward, his telekinesis circled around the white light cluster a few times, and finally he couldn't help but raise his courage and get closer.

The moment this wisp of telekinesis touched the white light cluster, the white light cluster immediately collapsed and dissipated, turning into an invisible subtitle, appearing in this space.

The first thing that caught his consciousness was the three words "Hundred Knowledge", Wei Zhen was full of curiosity and couldn't help but continue to look down.

"All things are born with a soul, and knowledge is contained in the soul, and knowledge is nourished by the soul, so the soul is opened. The soul is open and knowledgeable, and it must be nourished by the soul...... A hundred knowledge becomes one thought, and a thousand thoughts turn into one god......"

Wei Zhen didn't know why this strange "Hundred Knowledge" appeared in his mental space. He had already forgotten all about the white light that the mysterious girl had turned into a ball of white light under the giant tree in the empty world a few years ago.

The rest of this passage is about how to nourish the soul consciousness, make it grow continuously, and finally forge the soul body with soul power. According to this "Hundred Knowledge", only when the soul consciousness continues to grow and the soul body is achieved, can we deepen the comprehension of cultivation, understand the rules and laws of all things, and enhance the control and use of the power of heaven and earth.

After memorizing the whole text in his heart and chewing on the words, Wei Zhen felt like an initiation, and his heart suddenly had a clear understanding - although this "Hundred Knowledge" is a method for cultivating soul power, it has the same intention as "The First Essentials of Mental Power" and "Nine Recitation Sutras". The names of "soul power", "soul consciousness" and mental power are different, and they are also different from the scope of cultivation today, but the foundation of cultivation is still in the world of people's minds.

Wei Zhen's ignorant understanding can't be said to be right or wrong, his current understanding of cultivation is very limited after all, and his knowledge is even more lacking.

Soul power comes from soul consciousness, and soul power can only be generated when soul consciousness accumulates to a certain extent. The soul cultivation method originated from the time of Wu Gu. The ancient witch re-soul, believing that the human body has three souls and seven spirits, each soul can achieve a life, and cultivating to the extreme is the incarnation of three lives, comparable to gods.

The method of telekinesis was created by the talented people in spiritual cultivation after the decline of the ancient witches, drawing on the ancient witchcraft techniques. Its method is concise and practiced, but it also follows the principle of the creation of the ancient witch, when the spirit captain is promoted to the spirit general, he must use his mental power to condense his own core, which is called the "core of mental power", but in the ancient sect of the spiritual world, it is called "soul core".

However, this "Hundred Knowledge" is indeed a method for cultivating the soul of ancient witches, which Wei Zhen cannot know.