Ning Dongchen experienced the catastrophe of life and death, and actually "comprehended" the Ziwei Xuanfa Great Array with the scale of a thousand people between the key points, and the Daning tribe was undoubtedly a treasure.

At the moment, encircling and suppressing the blue-eyed demon is no longer an urgent matter, Ning Hao, the sect leader of the Daning Department, took the thousand-person Ziwei Xuanfa Great Array as a reward, and exchanged the red-armored general Jin Shihai to sit in Luolong City for twenty years, first blocking the blue-eyed demon in the depths of Fulong Mountain, and the Daning Department seized all the time and urged his disciples to practice the new level of the Ziwei Xuanfa Great Array.

There is no shortage of elite generals in the Daning Department, what is lacking is a high-level Xuanfa Great Array that can connect elite generals.

The martial arts cultivation of the Heavenly and Human Realm is the main general, with the Yuan Dan and the Dharma Phase Realm martial arts as the backbone, and the most basic soldiers are also selected from the elite martial arts cultivation in the middle and late stages of the Tianyuan Realm, and more than a thousand elite divine soul will, qi and blood, true yang, and true yuan spirit yuan are integrated, which is enough to compete with the Xuan Xiu powerhouses of the three realms in Nirvana.

This is also the core means of resisting the gods and demons in the primeval period after the rise of the human race.

The elite disciples of the Daning Department really have to be proficient in the Great Array of Thousands of Purple Micro Xuanfa, and more than a dozen teams of elites have entered the depths of Fulong Mountain, so that they can be sure enough to surround and kill the Blue Eye Demon.

In fact, the Daning Department mainly lacked the elite Xuan cultivation of the Nirvana Realm, otherwise, with the foundation of the Daning Clan, it would be enough to make up a complete Heaven-level battle array.

The Golden Palace, headed by Ning Hao, the sect leader of the Daning Sect, and the four elders soon agreed that Ning Dongchen would first transfer enough elites from the Lihuo Palace to form three thousand-person Ziwei Xuanfa battle arrays and station them in the depths of the southeast foot of Fulong Mountain.

This is also the source of the Zigeng pure gold vein surveyed by Chen Xun.

A deep gorge hidden under the towering giant trees, Chen Xun called it the Alchemy Gorge.

Alchemy Gorge is not a natural formation, but a remnant left by the Fulong Mountain Range after it was torn apart in the Ancient Demon War, from which you can see the traces of the fierce battle of the Immortal Monarch Demon Emperor-level powerhouse.

After hundreds of thousands of years of evolution in other places, new mountain veins have been reborn, but this one is still intact - so Chen Xun speculated that there may be other ancient ruins hidden under the Zigeng Pure Gold veins.

The Zigeng Essence Gold Vein is hidden under thousands of zhang deep rock formations, and if it weren't for this bottomless deep fissure gorge, there would not have been a little mist vapor-like Zigeng Gold Mother overflowing, allowing Chen Xun to glimpse the traces.

Because of the existence of this deep gorge, even if there is no big movement, Lihuo Palace can organize people to go deep into the veins buried under the underground rock layers to mine Zigeng Pure Gold.

Ning Dongchen fought a bloody battle to repel the blue-eyed demon and comprehended the thousand-person Ziwei Xuanfa battle array, which made the prestige of Ning Hongde and Ning Dongchen father and son increase sharply within the Daning Ministry, and also provided great convenience for building cities in the deep mountains and mining Zigeng Essence Gold.

First, the elite martial cultivators of the 3,000 Heavenly Yuan Realm were transferred to the Alchemy Gorge to guard against the attack of the Blue-Eyed Demon and other powerful demon beasts in the depths of Fulong Mountain, and then 10,000 standing forces were transferred to maintain the daily order and vigilance near the Alchemy Gorge, and finally hundreds of thousands of ordinary people and prisoners sentenced to exile for their crimes were sent to the Alchemy Gorge to build fortresses and excavate roads.

Chen Xun secretly helped, and tens of thousands of miners in the Alchemy Gorge spent three years cleaning a direct passage to the ore vein in the depths of the Alchemy Gorge.

Although the scale of the new Ziwei Stone City is not large, only ten miles in circumference, it was also built in three years.

Of course, if Chen Xun used his supernatural powers, with his own strength, he might be able to do these things in just ten days and half a month, but if he really wanted to mobilize the Heaven and Earth Yuan Force of the entire Fulong Mountain to do these things, it was impossible not to alarm those Brahma Realm cultivators who were sitting in the Demon Slaying Sect.

At the same time, Chen Xun also believed that the Demon Slayer Sect should have a secret treasure that was monitoring the movements of the Mengtian Realm, and he couldn't make any big moves until he was sure, and he even had to endure it to kill the Blue-Eyed Demon in person.

In the past three years, in addition to escaping into the Chaos Treasure Room of the Burning Sky Treasure Lotus every day and refining a Chaos True Evil Spirit Fire into the Law Body, Chen Xun also took time to refine the Purple Dragon Battle Halberd into the Fourth Formation Prohibition and promoted it to a low-grade Pure Yang Dao Weapon.

Of course, Chen Xun can continue to improve the level of the Purple Dragon Battle Halberd, but that is a bit shocking, and with Ning Dongchen's cultivation, the Purple Dragon Battle Halberd at the lower grade Dao Weapon level can also be used to exert his combat power to the extreme.

When the Purple Dragon War Halberd is used as a superb Heavenly Weapon Xuanbing, it can be refined into the Weapon Spirit, but Ning Dongchen in addition to refining into the Second Yuan God, he can't subdue the powerful demon beast with a divine soul as the Purple Dragon War Halberd for a while, so Chen Xun directly took out a Burning Sky Demon Jiao from the Burning Sky Treasure Lotus and handed it to Ning Dongchen to fuse with the Second Yuan God and refine it into the Purple Dragon War Halberd's instrument spirit.

In the secret room, Ning Dongchen was very shocked when he saw the Burning Sky Demon Jiao, which had only grown into a three-foot length, but he felt that this young Jiao, which looked extremely weak but exuded the aura of the desolation, should be extremely precious, and excused himself: "Mr. secretly helps my Daning clan so wholeheartedly, Dongchen will be difficult to repay in this life, how dare he refine Mr.'s magic weapon spirit?"

The Burning Sky Demon Jiao was conceived in the Burning Sky Treasure Lotus, and had not yet given birth to a hundred corpses of the flesh, at this time it was a virtual spirit body between the virtual and the real, and it did not breed self-spiritual consciousness, so it could be said to be the best carrier for refining into a tool spirit, but Ning Dongchen thought that the Demon Jiao was the instrument spirit that Chen Xun sacrificed to use the magic weapon.

Ning Dongchen thought so, but he didn't know that in the Burning Heaven Treasure Lotus, there were a total of ninety-nine such Burning Heaven Demon Jiao, even if one head was removed, the hole formed by the Ten Days Chaos Burning Demon Array would be vacant, and Chen Xun would spend some energy, and after a while, he would be able to give birth to a new one.

Chen Xun wanted to use Ning Dongchen as his spokesperson in Fulong Mountain, and felt that Ning Dongchen was indeed trustworthy, so he naturally spared no effort to help Ning Dongchen improve his cultivation and combat power.

Chen Xun didn't say much, raised his hand, and saw the nine-headed miniature Burning Sky Demon Jiao flying out of the sleeves of his robe, and asked with a smile: "I don't lack these instrument spirits, don't you cherish them for me......"

Ning Dongchen would be there stupidly.

"I can't tell you all the secrets now, it's not that I don't trust it, it's mainly because I'm afraid that the strong enemy will have a sense in the dark and know that I'm hiding here, but you must know that my life is also to destroy the demon race and protect the human race as my own thoughts, so I will do my best to help you and help the Daning Department to enhance its strength, otherwise, I would have left a long time ago. ”

Speaking of this, Chen Xun remembered the first time he met Lao Niu, when Lao Niu was also chattering, and he even saw his shadow from Ning Dongchen at this time.

It's just that I don't know if the demons or those mysterious black-clothed people hiding behind the scenes will give him enough time to support the rise of a new Shenxiao Sect in the Mengtian Realm.

Seeing that Ning Dongchen still looked like he was not giving up, Chen Xun smiled and said, "You first refine the Burning Sky Jiao into the battle halberd, and then retreat and cultivate well, and strive to survive the Thunder Tribul......ation before participating in the Demon Killing Trial."

Ning Dongchen was stunned again:

For thousands of years, Jin Shihai was the only one near Fulong Mountain who had survived the Thunder Tribulation and cultivated the Yuan Fetus, but he didn't expect Chen Xun to directly let him go through the Thunder Tribulation and use the power of pure yang thunder contained in the Thunder Tribulation to impact the Yuan Fetus.

However, Chen Xun said so confidently, Ning Dongchen had no reason to doubt him, after all, during this time, he had seen too many incredible things in Chen Xun, so as not to be too shocking, he had to cover it up in every possible way.

Chen Xun's heart moved at this time, and he said to Ning Dongchen: "Your father, Sect Master Ning, and Elder Ning Jingtian have already rushed to the Alchemy Gorge, I will go to the underground ancient hall first, and when you wait for them to come, you will lead them directly to the ground." Everything we have decided to deal with them. ”

The underground ancient hall is not a ruin, but a remnant hall that the Daning royal family fell into the depths of Fulong Mountain, buried in the depths of the ore vein, and there are tens of thousands of zhang deep from the deepest part of the deep gorge.

It stands to reason that it is impossible to discover this remnant hall until this section of Zigeng Pure Gold's vein is completely excavated.

It's just that Chen Xun didn't have time to wait, he directly created many twists and turns on the side of the vein, forming a passage that seemed to be hidden, but could be inadvertently discovered by a great refiner from the Fire Palace.

In this way, the remnants of the Daning Imperial Family's lost hall in the Ancient Demon War came out in advance.

Chen Xun stood in the underground cave that was sorted out, looking up at the ancient remnant hall that was more than 100 zhang high, the broken plaque made of Zigeng refined gold, and the ancient bird seal with the word "Ziwei" remaining.

The three great refiners of the Heavenly and Human Realms who left the Fire Palace were guarding this place at this time, and when they saw Chen Xun coming in, they bowed their heads, but they did not stop Chen Xun from visiting the ancient hall.

In their opinion, this ancient hall was discovered by them by accident, but the origin was Chen Xun's suggestion to leave the Fire Palace to mine this vein.

The hall was almost neatly cut in half, the other half was gone, and the remaining half fell into the depths of the earth, covered with earth fire magma, and only one corner was exposed, but it was also dilapidated.

Chen Xun inspected the remaining formation prohibition, when the Ziwei Ancient Hall was completely undamaged, it was a superb Dao weapon, if it was cut in half by a strong enemy so neatly and destroyed, then the other party would have the cultivation of the Golden Immortal Realm.

In the Blood Sea Demon Tribulation that Mengtian Realm first experienced, the Demon Race had a strong existence of the Ancient Demon Venerable or even the Heavenly God and Demon level?

Chen Xun had been able to enter the Ziwei Ancient Hall directly three years ago, but at this time, he was still shocked by everything he had deduced from the wreckage of the Ancient Palace.

If this is the case, the Demon Slayer Sect, with the support of Gu Zhihua, must be a powerful existence of the Desolate Ancient Demon Venerable or the Dutian God Demon level in the Demon Clan, so that it can rise in the Mengtian Realm.

Of course, all this seems reasonable, the demon clan does not have such a strong existence, and it is impossible to destroy the Mengyuan Realm like this, but the key is that in the process of the rise of the Demon Slayer Sect, the achievements of the Desolate Ancient Demon Venerable or the Dutian God Demon have not been severely damaged!

At this time, Chen Xun received his divine sense into the Burning Sky Treasure Lotus, and the chariot handed over by Ning Zihe was placed in the chaotic space of the Burning Sky Lotus, but the body that had been re-refined by the Great Refining of the Fire Palace had been stripped away by Chen Xun, revealing the original appearance of the wreckage of the real Ancient Ziwei Chariot.

The Ziwei Chariot and the Ziwei Ancient Palace were both peerless Dao weapons refined by the ancient Daning Imperial Family, but they were both destroyed in the initial Blood Sea Demon Tribulation.

The only thing that is gratifying is that the Ziwei chariot and the formation prohibition of the Ziwei Ancient Palace are the same, and it is obviously from the same powerful hand of the ancient Ning clan.

In fact, in the past three years, one of the things that Chen Xun has spent the most energy on is to strip out all the useful formation prohibitions in the Ziwei Remnant Palace.

Although this would make the Ziwei Ancient Palace even more dilapidated, it also provided truly useful materials for Chen Xun to repair the Ziwei Chariot with the Ten Thousand Weapons Perfection True Method.

Chen Xun only needed to replenish these formation prohibitions stripped from the remnant hall into the Ziwei chariot, and in the chaotic space of the Burning Sky Treasure Lotus, it might only take three or five hundred years to roughly repair the Ziwei chariot; otherwise, even if he had the ability to refine a superb Dao weapon, where would he get so many extremely precious materials?