I picked up skill fragments in the demon world.

Chapter 409: Reversal of the Dan
When Zhang Chen heard Xu Erniu's advice, he was deeply moved. This girl was really thoughtful and it was worth all his efforts for her.

Zhang Chen certainly knew how much risk Xu Erniu took in teaching him the secret formula. Secret formulas cannot be passed on between disciples. Once the master knew about it, he would be confiscated and his body would be crushed to ashes.

Xu Erniu did not hesitate at this time and directly explained the formula to Zhang Chen. After hearing the formula of Cao Huandan, Zhang Chen fell into deep thought.

He is now very knowledgeable, especially as Xiu Liu attains enlightenment, the sea of ​​blood undergoes changes again, and Zhang Chen also has his own magical powers.

After listening to the formula of Cao Huan Dan only once, Zhang Chen had already figured out many of the tricks.

"The formula of this Grass Returning Pill is unconventional. It is not the way of immortals, but the way of spirits. If one cultivates it to perfection, he can only become a powerful king of plants and trees, which cannot be considered the way." Zhang Chen kept thinking in his heart. He didn't know why, but since Xiu Liu returned to his position, Zhang Chen felt that his spirituality had become much stronger, and his thinking speed was very fast: "If I can achieve perfection in the way of spirits and completely transform it into Grass Returning Pill, if I use the law of reversing yin and yang to change the law and turn Grass Returning Pill into a seed, wouldn't it be able to directly turn into a ginseng fruit tree? If a fruit turns into a fruit tree, wouldn't it be directly becoming an innate god?"

According to the records in the novels of the previous life, Zhunti is the incarnation of Bodhi, and Zhen Yuanzi is the incarnation of the ginseng fruit tree. If Xu Erniu can reverse herself into a ginseng fruit tree, then she will directly ascend to heaven and become an innate sacred being, the king among plants and trees.

Zhang Chen was extremely shocked by his own conjecture, and all kinds of inspiration kept flashing in his mind: "So, practicing this Herbal Elixir is not a dead end. If you can practice it to the point where the fruit is ripe, and then use the inversion of yin and yang to reverse cause and effect, so that the seeds can sprout and turn into fruit trees, it will be a great way to heaven. At least Xu Erniu's future achievements will never be worse than that of the ancestor of earthly immortals in Journey to the West."

Zhang Chen was shocked by his own guess, and Xu Erniu beside him blinked and looked at Zhang Chen: "Zhang Chen, you need to practice this Cao Huan Dan Gong Jue secretly in the future. Don't let anyone find out, otherwise we will all be in big trouble."

"I didn't say I wanted to practice Cao Huan Dan." Zhang Chen said.

Xu Erniu was stunned, and looked at Zhang Chen in confusion, as if she was looking at a mental patient: "You don't practice Cao Huandan, why are you asking about the secrets?"

Zhang Chen did not respond to Xu Erniu's words, but asked: "Little sister, do you believe me?"

"Of course I believe you." Xu Erniu said.

"Then let me ask you again, do you believe in the master, or do you believe in me more?" Zhang Chen repeated.

"Of course I trust you more. What kind of relationship do we have?" Xu Erniu patted her chest and said, "How can I not trust you?"

"If you believe in me, when you practice in the future, you must focus on cultivating the great magical power of reversing Yin and Yang. Before you have mastered this magical power, you must never practice the Grass Returning Pill technique. After you have mastered the Grass Returning Pill, you can immediately display the great magical power of reversing Yin and Yang, and turn the Grass Returning Pill into a fruit tree, thus reversing the cause and effect." Zhang Chen carefully instructed Xu Erniu.

Cao Huandan is also known as ginseng fruit. Since it is a fruit, it represents a seed. Since it is a seed, it can of course take root, sprout and turn into a fruit tree.

This is the inexplicable feeling Zhang Chen has had since Xiu Liu returned to his position and the power of blood has emerged. He feels that his calculation ability has increased a thousandfold and his brain is working better than ever before.

Xu Erniu stared at Zhang Chen blankly, her eyes full of strangeness: "Should we tell the master about this, in case something goes wrong with our practice..."

Seeing that Xu Erniu doubted whether he was reliable, Zhang Chen said unhappily: "You girl actually doubted my ability. Don't forget my methods down the mountain. Just practice according to my instructions, and you will benefit in the future. Also, you must not tell the master about this matter, not even a rumor can be leaked."

Xu Erniu nodded obediently: "Okay, I'll listen to you."

She knew Zhang Chen's abilities well. The two of them had come out of the muddy life together and had a life-long friendship. Of course, she believed in Zhang Chen.

Xu Erniu was no fool. Looking at the weird Zhang Chen, she whispered, "Zhang Chen, do you know something bad?"

"No! You just need to practice well. I just discovered the magical effect of Cao Huandan. With the help of the magical power of reversing yin and yang, there will be incredible changes." Zhang Chen replied to Xu Erniu with a smile.

Then the two talked for a while before Zhang Chen turned and left.

Looking at Zhang Chen's receding back, the already graceful and beautiful girl showed a hint of suspicion in her eyes: "Why do I always feel that something is not right? But I can't tell what is wrong."

An inexplicable dark cloud enveloped Xu Erniu and weighed on her heart, causing her to have a slight ominous premonition.

Time is passing quickly and everyone is racing against time.

The disciples of Wuzhuang Temple were practicing the formation, the Patriarch Changsheng was sharpening his sword, and Zhang Chen traveled back and forth between the Nine-Bend Yellow River Formation every day, staring at the nirvana of the innate peacock.

As for the group of immortal spirits, Zhang Chen studied it for some time, but still could not find out anything. As for Xiu Liu, he was still busy collecting secret books for Zhang Chen every day, but the secret method of practicing Qi of Taiping Dao that he wanted was still nowhere to be found.

That day, Xiu Liu sent over various secret manuals. Zhang Chen took a quick look and realized that they were all heretical techniques. He said impatiently, "Why haven't you found the latter part of the Taiping Dao Qigong technique yet?"

Xiu Liu smiled bitterly upon hearing this, feeling wronged. "My little ancestor, you really wronged me. Those disciples of the Taiping Dao are simply unable to practice the secret method of Qi training. It is already good enough that they can pass down the skills of Qi training. If you want to obtain a higher level of Qi training, you can only start from the three demon saints of the Taiping Dao..."

Xiu Liu's voice was full of grievance, and his eyes were full of bitterness. What could he do? He was helpless! The remaining two demon saints were inseparable, and they had disappeared recently. The demons below said that they seemed to be looking for some treasure. Even if he wanted to rob them, he couldn't find the target.

"What about the Taiping Dao's lair? Did you gain anything?" Zhang Chen asked again.

Hearing this, Xiu Liu shook his head and said, "The gate of Taiping Dao is guarded by a talisman formation. If I want to sneak in, I will definitely alarm the formation. Even if I possess those monsters, I can't hide from the talisman formation."

Hearing Xiu Liu's words, Zhang Chen scratched his head, with a look of distress in his eyes: "Does this mean that I can only wait until those two demon saints are dead before I have a chance to obtain the fundamental Qi training technique of the Taiping Dao?"

Zhang Chen fell into deep thought, and for a moment he had no good solution.

Hearing this, Xiu Liu asked tentatively, "I wonder what is so mysterious about this Qigong method that you attach so much importance to it?"

Zhang Chen glanced at Xiu Liu and said, "This is not something you can inquire about. Just collect the skills for me."

The stronger Xiu Liu is, the more Zhang Chen cannot be polite to him. He has to constantly warn Xiu Liu to prevent this kid from having any inappropriate thoughts and causing trouble for himself.

Zhang Chen waved his hand to signal Xiu Liu to leave, leaving Zhang Chen standing alone in the courtyard, staring at the sun in the sky in silence.

Time passed quickly, the ninth year passed quickly, and the tenth year arrived as scheduled. Zhang Chen still practiced in the Nine-Bend Yellow River Array every day, and the Longevity Ancestor sat cross-legged outside the Nine-Bend Yellow River Array, staring at the array with his eyes, wondering what he was thinking.

Ten years have passed, and the innate peacock is still in nirvana within the formation, with no sign of breaking out of the shell.

From time to time, Zhang Chen came to the embryonic egg transformed from the innate peacock and looked at the symbols flowing on the embryonic egg. Intermittent fragments of the essence of the five elements flashed by, which made Zhang Chen understand something.

"The innate peacock was born from the five elements. The five elements flow in its body, and it is born to hold the power of the five elements. It is so enviable that it makes people's eyes red. The innate race is truly blessed by nature, and God favors it so much!" Zhang Chen sighed softly, with a hint of emotion in his eyes.

In the eleventh year, the colorful light of the egg solidified and formed a colorful eggshell, just like an oil painting, without any fluctuations of divine light.

In the twelfth year, a crack appeared on the colorful egg.

Thirteenth Year
Zhang Chen was meditating on the mystical magic in the Nine-bend Yellow River formation when suddenly there was an earth-shaking sound of drums, accompanied by terrifying demonic auras, and the two great demon saints of the demon clan made a comeback.

Countless demon armies swept in like an overwhelming force, from the sky to the ground, sweeping towards the Qingcheng Mountains in a mighty force that covered the sky and the sun, intending to raze the Wuzhuang Temple to the ground.

The disciples of Wuzhuang Temple showed no sign of weakness. The four major disciples led their followers, formed a large formation and took the initiative to meet the enemy.

At this time, dark clouds flickered in the sky, and two figures walked out from the dark clouds.

One of them had a bull's head and the other had a rhinoceros head. Both of them were tall, about ten meters tall, standing in the dark clouds and overlooking the Wuzhuang Temple.

"Changsheng, do you dare to come out and fight?" Then the Great Sage with the bull's head roared to the sky, his voice shaking the sky: "Give me back my brother's life. Today I will make you pay for my brother's life."

“You are just a mere evil creature, how dare you speak so arrogantly in front of me? I told you two to escape before, you were lucky. Since you have come together this time, you all should stay.” The voice of the Longevity Patriarch was full of calmness. He put his hands in his sleeves, raised his head and looked at the two demon saints in the sky, with no fear in his eyes.

He knew that as long as he could kill one of the two great saints, he would be safe, and the remaining one would definitely not be his opponent.

Inside the Nine-bend Yellow River Formation, Zhang Chen stood in front of the innate peacock egg, staring at the egg with a hint of anxiety in his eyes: "Old Ancestor, are you reliable? The people above are going to beat their brains out. What if the Immortal Ancestor wins, and the fate of the world is unified, so that we can survive the catastrophe and reach a higher level of cultivation? I'm afraid we'll be in big trouble."

(End of this chapter)