"Nine-colored black iron?" Nie Lingfeng's heart suddenly shook after hearing these four words, but his face became calmer and calmer, and even his tone did not change at all, and he said, "Senior, what is Nine-colored black iron?"

"Nine-colored black iron is the core of the true spirit world. Only by gathering nine pieces of nine-colored black iron can one refine a true spirit world!" Speaking of this, Xuanyuan Immortal Emperor's tone was already very proud, and he continued: "Now, I can only gather these nine pieces of nine-colored black iron in the entire fairy realm. The old man of the Chaos Immortal Emperor actually wanted to refine his own true spirit world. Humph! Even if he used the spiritual herbs of the Immortal Powder Planet to attract cultivators in the fairy world, he did not find these nine-colored black iron!"

"Is this nine-colored black iron very difficult to find?" Nie Lingfeng continued to ask.

"It's not difficult to find, but only monks under the cultivation level of Sanxian can find this thing, because once the cultivator's cultivation level reaches the Daluo Golden Immortal, then these nine-colored black irons will have a repulsive effect. No matter how hard you cultivate, you can't catch it!"

"Then can't the Chaos Immortal Emperor collect all these nine-colored black irons at such a high price?" Nie Lingfeng continued to ask.

"Not that easy!" Xuanyuan Immortal Emperor sneered: "Hmph, this guy is famous for being outside. Those who know don't dare to trade with him. Those who don't know can't find the planet of immortal medicine. Besides, if you want to get these nine-colored black irons, you can't do it just by chance. You need to search for it in the upper, middle, and next three days. If you are not careful, you will be swallowed up by the turbulent space. Humph!..."

"It seems that the guy who found the nine-colored black iron is really a blessing!" Nie Lingfeng couldn't help but sigh in his heart, but now he is cheaper!

"Do you have any questions?" At this point, Emperor Xuanyuan turned his head and asked.

"I would like to ask, how should I sacrifice and refine these nine-colored black iron? After I successfully sacrifice and refine, can I take this true spirit world for myself?"

"I will help you during the sacrifice and refining. Moreover, as long as you succeed in the sacrifice and refining, this true spirit world will become yours, that is to say, you are the master of this true spirit world!" Xuanyuan Xiandi said with a smile.

"General sacrifices and refining are all sacrifices and refining. But why don't you sacrifice this true spirit world by yourself?" Nie Lingfeng said in confusion: "The spiritual cultivation of the previous generations should be easy to sacrifice this true spirit world that originally belonged to you, right?"

"Haha!" Hearing Nie Lingfeng's words, Xuanyuan Immortal Emperor smiled and said helplessly: "Even if I have successfully sacrificed and refined, I cannot leave this true spirit world. After all, my spiritual sense cannot be exposed!"

"Okay. Let's start!" Nie Lingfeng nodded and said after getting the answer he wanted.

"Don't be anxious first!" Xuanyuan Xiandi smiled and said, "We need to enter the formation!"

Under the leadership of Emperor Xuanyuan Immortal, Nie Lingfeng easily entered the peripheral protection array of the nine-colored black iron. The function of this protection array is to prevent the nine-colored black iron from leaving the center point of the true spirit world.

After entering the formation, a familiar and terrifying aura came towards him. Nie Lingfeng was so scared that he almost sacrificed the Linglong Pagoda. However, after seeing that Emperor Xuanyuan was motionless, he finally held it back.

And here, Nie Lingfeng finally saw the true appearance of the nine-colored black iron.

Nie Lingfeng was already very familiar with the aura of the nine-colored black iron. If he hadn't really felt floating in the formation in front of him, the nine-colored black iron rolling was the nine-colored black iron. He might have suspected that the nine-colored black iron in his hand was a fake!

"This is the core of the True Spirit World?" Nie Lingfeng murmured as he looked at the crazy rolling nine-colored black iron.

"Yes!" Xuanyuan Immortal Emperor nodded and said, "The function of these nine-colored black irons is to activate the true spirit world. Only within this spirit-enlightening formation can the spiritual energy of these nine-colored black irons be peeled off and drive the true spirit world."

"Spiritual Enlightenment Formation?" Nie Lingfeng looked at the complex formation in front of him in confusion, and the nine-colored black iron inside the formation that was like the colorful light columns rolling madly on the stage, and couldn't help but wonder: "Do you still have to enter this Spiritual Enlightenment Formation?"

"Then there is no need!" Xuanyuan Immortal Emperor shook his head and said, "Just as long as you explore the spiritual consciousness into the Spirit-Starting Formation, and then attach the nine spiritual consciousnesses to the nine pieces of mysterious iron, then this true spirit world will become your own world!"

"That's so simple?" Nie Lingfeng said curiously.

"Yes! Very simple!"

"But, why don't I know this formation very well?"

"Yes, I spent more than 6,000 years to arrange this formation, so it may take at least ten years to fully master this formation!"

"More than ten years?" Nie Lingfeng was shocked when he heard the words of Emperor Xuanyuan.

"Yes! If your spiritual sense cannot enter this formation at will, then don't think about dividing it into nine parts and attaching the nine pieces of black iron separately!"

"this……?"

"And your nine spiritual consciousnesses must be exactly the same, and the attachment on each piece of black iron must be equal, otherwise, there will be no effect at all!" Xuanyuan Immortal Emperor continued.

"What?" Nie Lingfeng was stunned. Although it was difficult to divide nine spiritual consciousnesses to attach nine pieces of black iron, it was not impossible to complete. However, it would be impossible to make every wisp of spiritual consciousness exactly the same! Not to mention that he was just a cultivator at the peak of the Nascent Soul Stage, even if he reached the peak of the Tribulation Period, such a thing would be difficult to complete. After all, the division of spiritual consciousness is very difficult. It requires the cultivator to at least have very powerful and meticulous spiritual consciousness, just like giving you a piece of pork to divide them into nine pieces of pork exactly the same size. Moreover, there is no difference. If you don't use tools, there is no possibility!

"Don't worry!" Xuanyuan Immortal Emperor knew what Nie Lingfeng was thinking, so he smiled and said, "I will teach you a magical method of cutting spiritual consciousness. If you practice to the third level, you can randomly cut your spiritual consciousness into any equal parts. Even after reaching the fourth level, when you attack others, you can use uninterrupted spiritual consciousness to attack, and it will not consume your spiritual consciousness. This is also a great opportunity I want to give you!"

"Is that true?" Nie Lingfeng was immediately excited when he heard such a despicable martial art. He said, "Senior, how should I operate it now?"

"While practicing this spiritual cutting and studying the formation, after three months, checking the effect, I think you will learn the first level of spiritual cutting after you get started!"

"Yes!" Nie Lingfeng took the two jade tubes given to him by Xuanyuan Immortal Emperor, immediately sat cross-legged on the ground, and began to study it. He even didn't know when the Xuanyuan Immortal Emperor would leave.

I don’t know how much time has passed, but Nie Lingfeng raised his head from the research of formations. At this time, Xuanyuan Immortal Emperor had not come here yet, but now the spiritual consciousness cutting that Nie Lingfeng practiced has reached the first level. He even believed that when his formation goes further, the spiritual consciousness cutting can be promoted to the second level! The formation he is studying now has its own flaws. After all, he is already a formation master!

The complexity of this spirit-enlightening formation is no less than that of a giant overlapping formation. If it is placed on the Green Field Planet with a relatively high cultivation level, I am afraid that no one can understand it at such a quick time, because they do not have this magical cutting technique.

What Nie Lingfeng could not have imagined was that this spiritual consciousness cutting technique was actually closely related to the Spirit Qi formation. It seems that when setting up this formation, Xuanyuan Immortal Emperor used a lot of spiritual consciousness cutting skills. Even at that time, Xuanyuan Immortal Emperor's spiritual consciousness technique should be the most sharp skill in the world!

Nie Lingfeng has only successfully practiced the first level of martial arts. He felt that his spiritual consciousness not only solidified a lot, but even slightly enhanced. In the past, if he wanted to use his spiritual consciousness to detect his slave's thoughts, he needed to calm down and meditate. However, now he only needs to extract the slave's spiritual consciousness and feel the other party's thoughts. This aspect alone is more than a little bit stronger!

Since it is now a bottleneck period, Nie Lingfeng does not want to continue researching. After all, the best way to break through the bottleneck is not to keep studying, but to relax your mind.

Now Nie Lingfeng began to sort out the purpose of Xuanyuan Immortal Emperor.

This Xuanyuan Immortal Emperor is definitely not a good person. Just imagine, even if an immortal emperor who has been practicing for tens of thousands of years or even hundreds of thousands of years, no matter how kind he is, no matter how grateful he is to be for his "life-saving grace", he will not give his true spirit world to himself. This is a top-grade immortal weapon! Even in the entire cultivation world, this true spirit world is still the only existence! Just imagine, even among the Daluo Golden Immortal, how many people have top-grade immortal weapons in their hands? Moreover, if the Xuanyuan Immortal Emperor does not mention the real purpose of this true spirit world, it further shows that he is using himself!

Indeed, no immortal emperor would spend time and energy on sacrifice such a seemingly useless true spirit world. In Nie Lingfeng's view, this true spirit world definitely has a special effect on the immortal emperor! Not to mention that this true spirit world requires a treasure like the nine-colored black iron, even a grass, a tree, a mountain and a stone in this true spirit world cannot be easily obtained. If it is really as Xuanyuan Xiandi explained, he can easily sacrifice a small world, and even the small world he sacrifices and refines can definitely allow humans to survive!

However, even though he knew that Xuanyuan Immortal Emperor was using him, he had no choice. After all, the top-grade cultivator in the Tribulation Period had no power to resist in the hands of Xuanyuan Immortal Emperor's wisp of spiritual consciousness. This means that if Xuanyuan Immortal Emperor wants to deal with him, he may just move his little finger!

Nie Lingfeng is not a cultivator who is willing to be controlled by others, but at this time his skills are not as good as others, so he can only endure it! Moreover, Nie Lingfeng is also an earthling, so Han Xin can endure the humiliation under his crotch. When he faces the Xuanyuan Immortal Emperor whose cultivation is much stronger than him, all he can do is to save his life first, and then speed up his cultivation. When the Xuanyuan Immortal Emperor cannot control himself, it is time for him to fight back!

When he was just a low-level cultivator in the Golden Pill stage, he could even plot against the Baoling Venerable who had the Nascent Soul stage. Now that he has reached the peak of the Nascent Soul stage, he can still "can't play" with a wisp of spiritual consciousness of an immortal emperor?

Since Nie Lingfeng's formation cultivation is already very good, after practicing the divine consciousness cutting technique for a few days alone, the original shackles that blocked his formation research were suddenly broken. A sense of pleasure filled with the soul suddenly caused his divine consciousness cutting cultivation to soar. While the formation cultivation was improving, his divine consciousness cutting technique also entered the second level.

Immediately, he was once again immersed in the "work" of cultivation and breaking the formation.

Time passed slowly. During this period, Nie Lingfeng encountered three bottlenecks, but every time he was able to solve the problem by himself. However, this time, he encountered great difficulties and had not studied the Spiritual Enlightenment Formation for more than ten days!

At this time, Nie Lingfeng's spiritual cutting technique had steadily advanced to the peak of the third level. He knew that once his spiritual cutting technique could advance to the fourth level, he would be able to fully master all the changes of the Spirit-Spiritual Array. Because this spiritual cutting technique and the Spirit-Spiritual Array complement each other.

At this time, Nie Lingfeng realized that if a cultivator had not practiced the magical cutting technique of Xuanyuan Immortal Emperor, then the spirit-enlightening formation could not be arranged at all. On the other hand, even if you know how to arrange the spirit-enlightening formation, if you do not have this magical cutting technique, everything would be in vain.

Of course, there are thousands of spiritual consciousness techniques in the world of immortal cultivation, and some monks may also have very sharp spiritual consciousness techniques. They can also use spiritual consciousness techniques to arrange the spiritual enlightenment array. However, Nie Lingfeng believes that if the other party has not practiced this spiritual consciousness cutting method, then he will not be able to arrange it even after studying it for ten thousand years, or master the essence of this spiritual enlightenment array.

Nie Lingfeng now knows the sharpness of the Spirit-Star Array, and also understands the invincibleness of the spiritual consciousness cutting technique. Before practicing the spiritual consciousness cutting technique, Nie Lingfeng already felt that his spiritual consciousness was very powerful, and even he dared to use his spiritual consciousness to compete with the lower-grade monks in the Tribulation Stage. However, now, he feels that even if he meets a high-grade monk in the Tribulation Stage, he dares to use his spiritual consciousness to fight against him! This is not confidence, but a manifestation of real strength.

Nie Lingfeng closed his eyes and his spiritual sense had quietly flew out. In the outside world of more than 15,000 meters, Nie Lingfeng clearly saw Qin Zihan and Hua Ruyan practicing cross-legged in the True Spirit Hall. Of course, the old monster Dong, the sword master, etc. could not escape the observation of his spiritual sense. Before he practiced the magical consciousness cutting technique, his spiritual sense could not even see the center of the earth of 5,000 meters!

Perhaps because he felt Nie Lingfeng's spiritual sense leave the underground, suddenly, Xuanyuan Immortal Emperor's body appeared in the back garden of the Zhenling Temple. However, Nie Lingfeng looked very tired and felt a little absent-minded.

"You are indeed a genius," After entering the ground, Xuanyuan Immortal Emperor first praised Nie Lingfeng, and then smiled bitterly: "I didn't expect that you had only two years to practice the spiritual cutting technique to the peak of the third level. Alas! I remember that I had the guidance of my master, but it took nearly ten years!"

"Senior, but I have encountered a bottleneck now. Many days have passed and I still have no clue at all!" Although Nie Lingfeng was a little complacent when he heard the words of Emperor Xuanyuan, he raised his own questions very calmly.

"Haha," Emperor Xuanyuan couldn't help but smile when he heard Nie Lingfeng's words, and then said: "Don't say that it is your current cultivation level. Even if your cultivation level has reached the ascension stage, you should not think about advancing to the fourth level of the spiritual consciousness cutting technique at this time!"

"Why is that?" Nie Lingfeng said astonished.

"I'll tell you the truth!" Xuanyuan Immortal Emperor glanced at Nie Lingfeng, and then said, "Actually, my spiritual consciousness cutting technique and spiritual enlightenment formation are the entire set of cultivation techniques. In other words, if your formation cultivation improves, your spiritual consciousness cutting technique will also increase. Your spiritual consciousness cultivation will naturally increase. After I advanced to the tribulation stage, I have been studying this formation. Of course, the further the spiritual enlightenment formation, the more difficult it will be to improve my cultivation. When my spiritual consciousness cultivation reaches the ninth level, my formation cultivation has reached the peak, and even at that time, my cultivation has reached the scattered immortals!"

"Oh?" Nie Lingfeng said in surprise: "Can I study the formation before this spirit-enlightening formation in the future, my cultivation will automatically improve?"

"It is impossible to automatically improve!" Xuanyuan Immortal Emperor shook his head and continued: "Because you have reached the peak of the Nascent Soul Stage, you must pass the heavenly tribulation to reach the tribulation stage. In this true spirit world, you cannot pass the tribulation, unless you have become the master of this world. Moreover, the cultivation of the tribulation cultivator cannot exceed the Nascent Soul Stage, because this true spirit world cannot withstand the heavenly tribulation of the tribulation cultivator! Once the heavenly thunder is attracted, the entire true spirit world may collapse!"

"Oh!" Nie Lingfeng finally understood and couldn't help but smile bitterly: "If I cannot sacrifice and refine this true spirit world successfully, I may never be able to improve my cultivation?"

"Yes!" Xuanyuan Immortal Emperor nodded and said, "If you can't become the master of this true spirit world, then you don't want to leave this true spirit world. Since you can't live without the true spirit world, of course you can't get through the tribulation!"

"What should I do now?" Nie Lingfeng couldn't help but frown.

"I originally thought that I could control the Fire Phoenix with my own spiritual sense, but after observing over the past two years, I found that the Fire Phoenix's cultivation level had reached the level of a human cultivator's low-level immortal! I didn't even dare to release the spiritual sense. If the Fire Phoenix gets angry, I might be scattered!" Xuanyuan Immortal Emperor did not answer Nie Lingfeng's question, but instead spoke on his own.

"Fire Phoenix?" Nie Lingfeng was stunned when he heard this, and couldn't help but say strangely: "What do you want to control the Fire Phoenix?"
Chapter completed!