I picked up skill fragments in the demon world.

Chapter 81 Crystal Core Mutation
Lei, the vixen is going to go!
Zhang Chen just needs to accept the benefit!

Because Zhang Chen used gunpowder for blasting, not only did some stones fly into the outside, but some stones also flew into the stone chamber. Fortunately, it did not cause too much damage.

“What the hell is that thing of yours? There’s no sign of it happening at all. Even if you’re a being in the twelfth realm, you’ll get hit if you don’t have innate warning signs or a unique ability to escape!” The vixen was standing in the stone chamber at this time, looking at the devastation after the explosion, her eyes full of horror. She suddenly felt that it was not unfair that her body was blown to pieces.

Looking at the shocked look of the vixen and her cherry lips that couldn't close, Zhang Chen suddenly had an idea and remembered the various unpleasant smells when he made gunpowder. The corners of his mouth curled up slightly: "Do you want to learn?"

He seemed to be a grandmother wolf, smiling at a little lamb.

This is free labor! How much time can I save by having a fox spirit help me make gunpowder?
As for the gunpowder technology leaking out? Now the fox spirit is my skill, and my soul-catching chain is still connected to the fox spirit, how can the other party have the opportunity to leak it? As long as I keep a close eye on it, the fox spirit will not have the opportunity to betray me.

"Can I learn? Will you teach me?" The vixen was stunned when she heard this, her eyes full of disbelief and surprise.

Such tricks would make the vixen so greedy that she would die!
There is no sign of the attack, making it impossible for people to raise any resistance. Even if an old guy of the twelfth level encounters it, he will be defeated if he is caught off guard!
"Learning this thing is very hard. Are you sure you want to learn it?" Zhang Chen confirmed again.

The vixen nodded vigorously after hearing this. Of course she would learn it! After learning this method, she would probably be able to stand up and seek revenge on one of her mortal enemies.

Zhang Chen smiled upon hearing this, revealing two rows of white teeth: "I'll teach you when we get back!"

"But now I'd like to trouble you to move the rubble out," Zhang Chen pointed to the countless rocks on the ground.

Looking at the rubble scattered all over the ground, the vixen's face suddenly fell, but she had no way of disobeying Zhang Chen's order, so she could only pick up the rubble and throw it into the underground river outside.

"I said that you don't want to think about escaping, but you are wasting time here. Let's find an escape route as soon as possible, maybe there is still a glimmer of hope. If you continue to delay, we won't have much time left." The vixen turned her head to look at Zhang Chen while carrying the rubble.

Zhang Chen looked at the vixen with a slender body and fluttering white clothes, who was constantly carrying large stones, and suddenly he felt a sense of disappointment like Lin Daiyu uprooting a weeping willow tree.

But after the vixen had been carrying the things for a while, she looked at Zhang Chen standing by and watching leisurely, and suddenly she felt unhappy: "I say... can you help me a little? You see, I have so little strength and thin arms, how hard it would be to carry things around? Can you be a little more compassionate to me?"

"You are my skill now! Have you ever seen anyone cherishing his own skills? Moreover, you are in the state of my skill now, you should not feel tired, right?" Zhang Chen attacked the vixen without hesitation and counterattacked the vixen's words.

The vixen stopped talking and started to curse at Zhang Chen, muttering something while moving the stones.

Looking at the vixen who was enduring humiliation, especially the one who was breathlessly lifting up large rocks, Zhang Chen was in an extremely good mood.

The fox spirit was tireless and in just a stick of incense, the stone chamber was cleaned up. Then Zhang Chen came to the side wall holding the night pearl. He did not look at the scroll of the human race, he wanted to look at the scroll of the demon race, so that he could learn from it later.

The orange aura that I saw outside before was emitted from the pattern on the stone wall.

The stone chamber was very spacious and was probably about twenty meters high. The light from the night pearl could barely illuminate the interior of the chamber, but this did not pose a problem for Zhang Chen. He directly controlled the fox spirit to float in the air, floating back and forth on the stone wall, using the light from the night pearl to illuminate the stone wall.

"It's actually a mural." Zhang Chen said in surprise.

"This mural is the secret visualization method obtained by my Qingqiu clan. My Qingqiu clan can touch upon the mysterious spiritual inner cultivation method, which also comes from this scroll. As long as you visualize this picture and get the true meaning of this picture, you can enter the mysterious spiritual induction realm, use that realm to temper the soul, and thus strengthen the soul to the point where it can leave the body. But this scroll is too dangerous, and it is only suitable for visualization by my demon clan. You should not visualize it. In case you become mentally disturbed and your soul is scattered, don't implicate me." The fox spirit floated in the air, using the night pearl to illuminate the scroll.

Zhang Chen looked carefully at the lines on the stone wall. He went about a foot deep into the stone wall. The lines were soft and perfect without any pauses. It looked as if they were carved on the stone wall in one go by someone.

“The power of the ancient gods is truly incredible.” Zhang Chen looked at the depth of the marks and saw that the lines were not damaged at all. It seemed that to the owner of the lines, the bluestone and water in front of him were like no obstacles.

“Only if the opponent’s palm is sharp enough can it slide across the stone wall like sliding across water without causing any damage.” Zhang Chen said secretly in his heart.

At this time, Zhang Chen looked at the lines on the stone wall, but unfortunately the light of the night pearl was too dim and could not completely illuminate the pattern on the stone wall at once. Zhang Chen could only see scattered lines on the stone wall, but could not see the whole picture of the lines, and could not tell what was carved on the wall.

"Is there something brighter?" Zhang Chen looked at the fox fairy Nannan who was holding a night pearl as a light bulb.

"There are still some torches." said the fox fairy Nannan.

"Go get it!"

Zhang Chen hurriedly urged.

How can the brightness of a night pearl compare to that of a torch?
There is absolutely no comparison!
The fox fairy Nannan glared at Zhang Chen, reluctantly handed the night pearl to Zhang Chen, then turned into a wisp of green smoke and disappeared into the stone chamber.

After the fox spirit left, Zhang Chen did not move around, but stood in front of the wall and carefully pondered the changes in the lines. He did not have to wait long before he saw the fox fairy Nannan holding seven or eight torches and a flint in her hand, and came to Zhang Chen:
"These torches are specially made by my Qingqiu clan. One torch can illuminate a whole day and night." said the fox fairy Nannan.

Zhang Chen took the torch, and signaled to the fox fairy Nannan to light the torch with flint. Then the next moment, a small sun rose in the stone chamber, like a 120-watt light bulb, and the entire stone chamber was as bright as day.

"What is this torch made of?" Zhang Chen asked curiously.

"I don't know." Fox Fairy Nannan said unhappily, "I'm not a know-it-all."

Zhang Chen ignored the fox spirit's impatience and raised the torch to look at the stone wall. Only then did he see the pattern on the entire stone wall clearly. He was stunned: "Is that... a fox with nine tails?"

"That's right! That's the ancestor of my fox clan, a twelfth-order god!" The fox spirit's voice was full of pride. "My fox clan has a unique talent for death-substitution. As long as the blood returns to the ancestral bloodline and grows a tail, we can continue to die. It's a pity that I lost a tail when I encountered a powerful enemy a few years ago, and I encountered an accident when I was trying to seize another body, and I lost another tail. Otherwise, how could I be ambushed by you?"

Fox Fairy Nannan's voice was somewhat sad. She was the ancestor of Fox Fairy Nannan, a seventh-level existence, but she had actually fallen on a reckless man. How could she express her resentment in a few words? It was simply outrageous!

It feels like you are a master in the Jindan realm, but you are hacked to death by a mortal. Do you feel aggrieved?
Her fox fairy daughter was so frustrated that she was about to die!
If she died, perhaps all would be over, but now an accident happened and she couldn't die!

Zhang Chen ignored the vixen and stared at the sculpture. After observing it for a long time, he did not feel anything at all.

There were four large characters above the stone carving. Those four characters, "Golden Hook and Iron Horse," had a murderous aura and looked full of murderous intent, but he did not recognize the characters.

"I need to learn to read as soon as possible, so that I won't miss the opportunity in the future because I can't read." Zhang Chen said to himself.

"What do those four big characters say?" Zhang Chen asked.

"The celestial fox swallows the moon." said the fox spirit.

"The celestial fox swallowing the moon?" Zhang Chen looked at the pattern. It was indeed a fox spirit with nine tails, stretching its neck and holding a round ball in its mouth.

The most important thing is that there are thousands of strange symbols of various sizes, the size of rice grains, engraved inside the sphere, which looks very mysterious.

"What is that symbol?" Zhang Chen asked.

The fox spirit hesitated when she heard this: "That is the natal script of my fox clan. It describes the true meaning of the moon. Only by visualizing that symbol can we attract the essence of the moon. You must not try it. You don't have the blood of the fox clan. If you do, there will definitely be a big mess."

Zhang Chen did not comment upon hearing this, but just looked at it carefully for a while. Fortunately, his eyesight was very good after his blood transformation, so even if the symbol was only the size of a grain of rice, he could see it clearly.

However, as Zhang Chen observed, the crystal core in his heart suddenly vibrated slightly, and the flow of blood in his body actually slowly accelerated. In just a breath, Zhang Chen's heart beat like a war drum, and it seemed particularly clear in this empty stone chamber.

"I tell you, kid, stop watching. If something goes wrong, it will be a big problem. Don't get carried away and implicate me, your ancestor." The vixen heard the rapidly beating heartbeat in Zhang Chen's chest and became anxious. She shouted immediately.

Unfortunately, without Zhang Chen's order, she couldn't move at all, couldn't wake Zhang Chen up, and could only shout at Zhang Chen.

At this time, Zhang Chen's eyes were bloodshot, and he stared at the symbols on the wall, as if he was possessed by a demon. His gaze was fixed on the thousands of rice-sized runes. Then, with Zhang Chen's rapid heartbeat, veins bulged on his forehead and his skin turned red, making him look like a roasted shrimp.

"It's over!" Seeing Zhang Chen's abnormal behavior, Fox Fairy Nannan was immediately filled with grief: "I, Fox Fairy Nannan, have a miserable life! If this guy dies, I will be buried with him! If he is not dead and is paralyzed from head to toe, won't I have to take care of him? If he becomes insane and a lunatic, won't I have to accompany him to do those crazy things? How can I, the ancestor of Fox Fairy Nannan, put my face when the time comes?"

Thinking of the tragic future, Fox Fairy Nannan was filled with sorrow: I feel sad! I want to cry!

"Wake up! Don't get trapped! You are a human, don't get trapped! Please be kind and have mercy on me, the fox fairy! What sin have I committed? I just ate a little rice from your family. Do I have to serve you like a slave for the rest of my life?" The fox fairy Nannan looked at Zhang Chen with a pair of eyes, cursing him continuously.

Unfortunately, Zhang Chen could not hear the fox fairy's words. At this time, Zhang Chen's eyes were already glued to the rune. As his eyes came into contact with the rune, the blood in his body began to rush around. The crystal core flowing in his blood turned into a whirlpool, swallowing up the blood around his body, and then continuously used the blood to simulate runes. However, the simulated runes soon shattered in the crystal core, turned into blood again, and then simulated again, and shattered again.

This cycle continued endlessly, and Zhang Chen's face became paler and paler. His flushed face suddenly lost all its color, and his body kept swaying as he stood in front of the stone wall, as if he could fall to the ground at any time.

Zhang Chen stayed at this station for three days. His skin was pale and completely bloodless, and even his heart seemed to have stopped beating. The vixen could no longer hear any heartbeat from him.

At this time, there was no longer any blood in Zhang Chen's body. Only the crystal core was placed in his shriveled and dried up heart. Silver light flickered in it, and some strange changes seemed to be taking place.

At a certain moment, a number of strange symbols suddenly appeared on the crystal core. There were very few symbols, only a short 120 of them, which were much simpler than the thousands of them on the stone wall. The 120 silver runes combined together and were engraved in Zhang Chen's crystal core according to a unique melody.

Zhang Chen's crystal core was only the size of a grain of rice, which was small enough. However, the 120 runes were even smaller, and were engraved in the microscopic world of the crystal core like photolithography, occupying less than one ten-thousandth of the entire crystal core.

Then, accompanied by the rune engraving, its crystal core suddenly flashed and turned into silver-white.

That’s right, Zhang Chen’s crystal core changed directly from a transparent crystal to a silver-white color.

Then the crystal core vibrated slightly, and drops of blood quickly flowed out of the crystal core. Then Zhang Chen's heart resumed beating, and the whole person seemed to come back to life.

"Whoo~"

A long breath broke the solemn atmosphere in the stone chamber. Even the fox spirit who was cursing couldn't help but stop, and looked at Zhang Chen with a pair of eyes full of expectation. She hoped that Zhang Chen was not crazy or disabled, so that her fox fairy daughter would not have to work like a slave for others.

Fortunately, Zhang Chen was not crazy. He was still intact, but there was something wrong in his eyes when he looked at the mural.

"Are you okay?" The vixen came forward and looked at him eagerly, with a hint of nervousness in her voice.

"I'm fine!" Zhang Chen shook his head.

Zhang Chen answered, then turned to look at the vixen, his voice full of confusion: "Are you sure that observing this pattern can strengthen your soul?"

There is something wrong with this mural and symbol! It actually involves another mysterious power.

It seems like I can turn into a vampire bat!
(End of this chapter)