Under Chu Feng's control, the formation center of this "Spirit Slayer Array" is slowly forming, and this process is that the spirit gathering is absorbing the energy between heaven and earth and using it to shape the formation of the formation center.

Because Chu Feng did not control the spirit gathering process, the success or failure of the formation heart completely depended on the will of heaven.

Chu Feng was very lucky this time, there were no accidents in the whole spirit gathering process, and he smoothly arranged the "Spirit Slayer Array".

"Look how powerful it is."

Chu Feng was full of expectations, this was the first ground level formation he had arranged, it was a killing formation.

Chu Feng waved his hands, and the array eyes and array hearts in the house were all combined, so that this "Spirit Slaying Array" was completely activated, and a huge formation rose from the ground.

Chu Feng controlled the "Spirit Slayer Array" and did not let its range go beyond the house, and then he activated the killing array of this formation, only to see a blood-colored iron chain in the sky forming, slamming into the earth.

This red iron chain slammed into the ground with terrifying power, smashing the ground of the house into foam, revealing a hole dozens of meters deep, and the defensive formation that Chu Feng had originally laid was also destroyed in an instant, and swept out with a powerful aura.

"Not good!"

Chu Feng was in a cold sweat, the power of the Spirit Slayer Array was beyond his imagination, and if these aftermaths rushed out of the house, it would cause a catastrophe.

Chu Feng hurriedly intercepted the aftermath, and it took his life to barely intercept it.

"The power is so strong, it can completely threaten the supreme powerhouse."

Chu Feng's eyes flashed with essence, the power of "Spirit Slaying Array" was much beyond his imagination, such a powerful killing array was his current strongest hole card with the strongest attack power.

Call......

Chu Feng let out a long breath of turbidity, although the power of the "Spirit Slaying Array" was extraordinary, but once it was arranged, the soul power consumed was also very amazing, enough to suck out forty percent of his soul power, with his current soul power, he could only arrange two at most.

Chu Feng was relatively satisfied with this, after all, the power was so powerful, and it was normal to consume a lot of soul power.

Chu Feng swallowed a Soul Luo Dan, and after recovering the soul power of Zhihai, he began to arrange the "Spirit Slaying Array", this time, he wanted to try to control the spirit gathering process.

If Chu Feng can control the process of gathering spirits, the "Spirit Slaying Array" that is arranged can change the position of the eye and center of the formation, so that even if a supreme powerhouse who is proficient in the formation steps into the formation, it will be a life of nine deaths.

Chu Feng pinched the trick with both hands, and the vigorous soul power of Zhihai surged, because he succeeded once, the process of arranging the array eye this time was very smooth, and he soon came to the process of gathering spirits.

At this point, Chu Feng took a deep breath and tried to calm his mind, he had witnessed it when he was in the Nine Demon Sect, after the formation that controlled the spirit gathering process failed, all kinds of strange things would occur, and there had already been a diaphragm, he didn't want this kind of thing to happen again.

Especially the arrangement of the formation of the local level, Chu Feng couldn't imagine what kind of vision would appear, but one thing was certain, that is, it would definitely be more thrilling than the human-level formation.

Chu Feng knew that there was no room for mistakes, but sometimes things were like this, the more you were afraid, the more it would appear, and with an explosion, this "Spirit Slayer Array" exploded in his hands.

Chu Feng shook his head helplessly when he saw the formation explode, he was already very careful, but he didn't expect it to fail.

"The spirit gathering process of the earth-level formation requires the heaven and earth aura far beyond the human-level formation, which makes the spirit gathering process more and more difficult to control."

Chu Feng saw the problem, and although he was a little helpless, he continued to study and control the process of gathering spirits.

Chu Feng's failures again and again caused wisps of strange gases to float out of his house, which took on a yellow color, gathered in the sky and did not disperse, and finally formed a yellow cloud.

After watching this scene, many people didn't think so, but when the disciples of the Nine Demon Sect saw this, they were breathless, thinking of the legend in the sect.

They have all heard about Chu Feng's refining of the formation in the Nine Demon Sect, and finally causing the entire sect to be bombarded by five thunders, and many of them have heard of it, this matter is because of Chu Feng's arrangement of the formation, I don't know why when he arranges the formation, clouds of different shapes will form in the sky, and finally lead to tragedy.

"I'll go, Yang Yun won't be studying the formation again, right?"

The disciples of the Nine Demon Sect couldn't sit still, during this time, the good and evil sides stopped fighting, they were happy to be idle, and they finally rested for a while, but they didn't want to be tortured by Chu Feng anymore.

Soon, a disciple of the Nine Demon Sect spontaneously went to the house where Chu Feng was, and sure enough, he found that his house had been blown up, and if it weren't for a formation supporting it, it would have fallen long ago.

Even if there was a probe of the formation to isolate the mind and line of sight, they could still see that Chu Feng was definitely arranging the formation inside.

They also found that from time to time there would be explosions in the house that had failed in formation, and then wisps of yellow gas would drift into the sky towards the yellow cloud.

In an instant, their bodies were shocked, and the guess in their hearts was confirmed.

"He's really studying the formation!"

The disciples of the Nine Demon Sect broke out in a cold sweat, although they had not experienced the catastrophe in the sect, they had also heard a lot, and it was said that there were several cultivators of the Supreme Realm who were seriously injured by the explosion and were seriously injured.

"He must be stopped!"

The disciples of the Nine Demon Sect have a sense of responsibility that the heavens will descend on the Si people, and they have the responsibility to prevent this disaster from happening.

"You say, if we break up this yellow cloud, will it be all right?"

Suddenly, a disciple of the Supreme Realm proposed, and he pointed to the yellow cloud in the sky, his eyes flickering.

"Possibly."

When others heard this, they also agreed with his idea.

"Okay, then I'll try."

When this Supreme Realm disciple saw that the others agreed, he angrily stomped on the earth and rushed into the sky, smashing his fist at the yellow cloud, and this scene attracted the attention of many people in the mansion.

Rumble!

Under the sideways gaze of everyone, this supreme disciple injured the yellow cloud and fell to the ground in a very chic manner.

"That's it."

The Supreme Disciple smiled faintly, with a posture of deep merit and fame.

"Haha, I thought it was terrible, and this solved it."

"Let's go and go back to cultivating."

Seeing this, the disciples of the Nine Demon Sect felt that it was easier to deal with than they imagined, so they turned around and left this place.

As they left, Chu Feng's retreat was quiet again, only the sound of an explosion sounded inadvertently, indicating that he was still immersed in the process of studying the formation.

The process of gathering spirits in the ground-level formation is far more difficult to control than imagined, Chu Feng has been trying for more than two hours, but he still can't succeed, the soul power of Zhihai has been consumed many times, if it weren't for the support of Soul Luo Dan, it is estimated that he would not be able to continue to arrange the formation.

Chu Feng continued to fail, and the gas in the house drifted into the sky one after another, and it didn't take long for the yellow clouds in the sky to gather again, and also absorb the gas that had been dispersed before, and this cloud became very huge, filling the sky of the entire ancient castle.

The dazzling sunlight pierced through the yellow cloud, and the sunlight that fell was different from usual, attracting everyone's attention, and when they raised their heads to look at the sky, Jean finally reacted and was shocked by the huge yellow cloud.

"Didn't it break up, why did it appear again?"

The supreme disciple of the Nine Demon Sect who had made a move before frowned, he never expected that this yellow cloud would condense again, and the area would be countless times larger.

"Could it be that Yang Yun is still studying the formation?"

The Supreme Disciple quickly thought of this, and only this was the explanation.

"How much soul power does he have, and he can continuously study the formation!"

Although the Supreme Disciple was confused, he didn't care about it, and hurriedly went to find the disciple in the sect.

Regarding the terrifying vision caused by Yang Yun's array, the people of the Nine Demon Sect had already been deeply rooted in the hearts of the people, unlike the other cultivators in the castle, who were all curious, and many people thought it was very good-looking.

Including the cultivators of the other three sects of the evil sect, they didn't care too much, they didn't know that the five thunder bombardments experienced by the Nine Demon Sect were caused by Chu Feng's arrangement of the formation, they only knew that this matter was related to Chu Feng, but they didn't know the specific situation.

This supreme disciple found the disciples of the Nine Demon Sect who were also worried, discussed it, and felt that this matter should not be careless, and he could no longer act without authorization, and he had to go to the elders in the sect.

This opinion was agreed by everyone, and in the end, a group of them went to find the Second Elder of the Nine Demon Sect and woke up the Second Elder who was in retreat.

At first, the second elder thought that the decent killing was coming, but after listening to their explanation, he was slightly stunned, and then rushed out with a wave of his robe.

The second elder knew that Yang Yun had caused a disturbance in the sect, which blew up the entire sect beyond recognition, and the fifth elder was scolded by the sect master for this matter, so he naturally would not be careless.

When the Second Elder flew out of the retreat and raised his head to look at the sky, he was also stunned by this spectacular scene, which he had never seen before, and the whole sky was filled with yellow clouds.

At this time, the vision of the sky had already attracted the attention of many people, and the elders of the other three major sects also leaned out of their divine thoughts to observe, and only after finding that these yellow clouds were not aggressive, they withdrew their divine thoughts.

The figure of the second elder swept away and appeared in the sky, as the elder of the Nine Demon Sect, his status in the ancient castle was very high, second only to the four sect masters, so his appearance caused everyone to exclaim.

They never expected that the Second Elder of the Nine Demon Sect would appear in person.

The second elder ignored the voices of the others, he wanted to disperse this yellow cloud, so as not to cause a catastrophe again.

"When the old man solves this cloud, I have to go to Nameless to talk about it, and let Yang Yun study the formation and go to another place to study it."

The second elder thought in his heart, this time it was discovered in advance, and there was no vision yet, so it was estimated that he would not be so lucky next time.

As for why Chu Feng's research formation produced an anomaly, the two elders didn't understand this, and it was said that it was caused by the ability to control the spirit gathering process.

Regarding this, it was Lin Zun who said it, otherwise he and the other elders and sect masters of the Nine Demon Sect would not be clear.

The second elder thought as he waved his hand to bombard the cloud in the sky, he thought that his palm was enough to scatter the yellow cloud in the sky, and he didn't care too much, and at the same time as waving his hand, he subconsciously turned around and wanted to leave this place.