"We are weak, but we have also built such a formation, don't you think this is ability? Isn't that your greatest hope?" Dongfang Yu argued and asked continuously.

"I don't believe it, unless you can prove it!" the black dragon snorted.

"Of course!" Dongfang Yu nodded and turned his head to look at Long Ziyun.

Long Ziyun understood, knowing that his side needed to show some strength in order to convince this black dragon, he immediately transmitted the message to the nine Nine Rank Heavenly Rune Masters, asking them to gather the power of nine people to control this Nine Nine Heavenly Attraction Array, and take back the power of the Heaven and Earth Origin given to this black dragon.

After Han Feng and the others received his message, they immediately took Han Feng as the main body, controlling the formation to rotate, various runes flashed out, and a large amount of heaven and earth origin power began to shrink, returning to the central area, and no longer escaping.

The black dragon immediately became weak, and the light on its body trembled, and the scale armor cracked again, making its gaze gloomy again.

"You are so bold, don't you recover quickly!" the black dragon roared, the black flame in its mouth became more vigorous, and there was a sign that the jade would be burned if it didn't say a word.

Dongfang Yu and Long Ziyun glanced at each other, couldn't help but smile slightly, and immediately sent a message from Long Ziyun to the nine Nine Rank Heavenly Rune Masters.

Han Feng and the others naturally obeyed the order and let the formation recover.

Regaining the nourishment of the power of the origin of heaven and earth made the black dragon feel comfortable and feel the joy of being alive, but he didn't show it, just stared at Dongfang Yu and Long Ziyun.

It wasn't stupid, it could see that the two of them were the ones in charge of this place.

"Black Dragon, become the guardian venerable of our Heavenly Dragon Gate, we won't treat you badly!" Dongfang Yu said while the iron was hot.

"Okay, I'll promise you, but I won't make any oaths, I'll always be free!" After the black dragon said this, he didn't even look at them, and immediately turned into a black light, and re-submerged into the black bone, as if it had become an ordinary dark dragon bone, but it had no power of imprisonment, it could appear at any time, as long as the power of the origin of heaven and earth was sufficient, it could transform and survive for a long time.

"The deity is in the center of this array, don't disturb the deity when you have nothing to do!" The voice of the black dragon came from the bones of the dark dragon, and after saying that, it flew away, and after a while, it disappeared into the vast formation, and disappeared without a trace.

Han Feng was in the center of the formation, and suddenly saw a black bone rushing over, he was extremely surprised, and was about to attack, but fortunately, Long Ziyun's message came in time and informed him of all this.

He was a little surprised, and secretly sighed that the heritage of these sects was indeed hidden one by one, no wonder they could survive in the world and stand for tens of thousands of years.

"You little guy has special soul power, no wonder you can serve as a formation controller here!" The black light of the dark dragon's bone flickered, and it suddenly suspended hundreds of feet away from Han Feng, and the voice of the black dragon came out again.

"I've seen the Black Dragon Senior!" Han Feng dared to be rude, and immediately said respectfully.

"Oh, you're a polite little guy, unlike the two ghost guys outside, once you don't have respect for the deity, if it weren't for the deity who needs the power of the origin of heaven and earth in this array, otherwise you would have turned your face a long time ago. The black dragon said with a little annoyance.

"You have already become our Guardian Venerable, how can you not be respectful, it's just a different way of expression, hehe!" Han Feng smiled lightly.

"I won't tell you this, Haosheng will use this formation to achieve the Heavenly Pill Realm, which will be of great benefit to you!" After the black dragon said this, he walked away, and disappeared in an instant, and he didn't know where it was hiding.

Han Feng wondered, not understanding what it meant.

"Heavenly Pill Realm?" Han Feng's face was full of doubt.

He wanted to be promoted to the realm of the Jie Dan early on, and he originally planned to wait for this matter, so he asked Long Ziyun to provide resources, and with his foundation of Heavenly Rank Return, it should not be difficult to break through the bottleneck with the help of various elixirs.

But he really had never heard of any Heavenly Dan Realm, could it be that the Jie Dan Realm and the Guiyuan Realm also had different levels?

Han Feng couldn't summon Long Ziyun to consult about this matter at the moment, so he could only give up and ask again when the time was right.

Outside, Dongfang Yu and Long Ziyun were greatly relieved, and finally stabilized the black dragon, if the other party really launched a surge, they would also suffer heavy losses, and the consequences were unimaginable.

In fact, Mu Xia Palace and Mu Tianzong were unwilling to retreat, so they still let the two chief elders secretly turn back and spy on the reality of this place.

When the two of them found that the Nine-Nine Heavenly Induction Array was intact, and they saw the black dragon re-submerged in the formation from a distance, they knew that they couldn't do anything, and immediately returned to the main army and let everyone leave.

"For today's plan, we can only let the ancestor come back and make a decision!" Duan Yunfei and Qiu Burong had no choice but to stop and hope for their respective venerables.

......

Tianlongmen and the others flew out of the Ninety-Nine Heavenly Formation one after another, they looked at the desolate situation around them, and couldn't help but feel a burst of heartache, these resources were the wealth that they had accumulated for many years in various veins, and they were destroyed in such a way, can they not feel pity?

However, what can be done, they were already mentally prepared, and it was already a great luck that they were able to successfully force Mu Xia Palace and Mu Tianzong back this time.

Fortunately, the resources invested before were only partial, and some of the formation bases still existed at present, so they took a short break and continued to build on that foundation, and they were in full swing.

Sure enough, in less than three days, some defensive and offensive formations were established around the Ninety-Nine Heavenly Formation at the same time, and they already had some defensive and counterattack capabilities, in addition, there was a circle of thousands of miles of city walls, of course, the city walls built on the basis of mountains, with dense runes on them, otherwise they would not have been able to complete it so quickly.

This is only a preliminary plan, according to the planning of Tianlongmen, if it is really the location of the mountain gate, it will take several years or even more than ten years of work to polish before it is possible to form a scale.

During this period, Han Feng and others also walked out of the Ninety-Nine Heavenly Formation and participated in the construction of this place, almost without rest, it can be said that they were racing against time to lay down layers of runes to assist the construction personnel.

Their construction did not stop, it continued, and before you knew it, another half a month had passed.

On this day, the sky in the north suddenly began to become dark, and a wall of qi appeared in the distance, across the heavens and the earth, without boundaries.

The rim of the Grand Canyon of Death has expanded to this extent!

Many monks in the Tianlong Sect were panicked, and they all stopped what they were doing, or turned around, or raised their heads, or flew into the air, all looking at this wall of heaven and earth qi, and they didn't know what to do for a while.