(Thank you Xiao Er for the tea, thank you Doudou, thank you for the visual blood sacrifice, thank you DCTE, and thank you for the enthusiastic monthly pass!)

After the battle of the Thousand Demon Sand Sea, the Xuyuan Hall moved from the cold pool of the Huze Wasteland to the southern foot of Tianzhu Peak and was buried in the earth fire cave.

After that, the Shenxiao Haoran Sect built the Demon Killing Dao Palace on the cave, and Chi Songzi usually practiced here in retreat, but the four sects really knew that the Xuyuan Hall was hidden under the Demon Killing Palace, and only a few people such as Chi Songzi, Zhao Chengen, Hu Taiyan, Gu Wentian, Ji Lie, Zuo Qingmu, etc.

After the Sky Flame disappeared, the top of Tushan Mountain was covered by glaciers.

Against the cold wind, everyone flew to the sky above the Demon Killing Palace, except for the Thousand Demon Sand Sea and the dotted Qinglian flames, the surrounding mountains within the field of vision were covered with snow.

Several Taoist palaces built by the Shenxiao Haoran Sect are hidden in the deep canyon, and the mountain protection array will block the cold Xuanhan, and the canyon is rich and heavy, and the grass grows and the warbler flies, as if it is outside the south of the Yangtze River.

It's a pity that the four sects don't have heaven and earth-level mountain protection arrays, so they can't envelop the entire Tu Mountain.

The ordinary disciples are all under the jurisdiction of the Canglan Academy, and the main defense is in charge of the Canglan Jiawei, and the number of core disciples of the four sects is extremely small, and there are only twenty or thirty people who remain in the Demon Slaying Palace to practice.

After Du Liangyong received Chen Xun's talisman book, he rushed to Wushan for the first time to meet with Chi Songzi, Ji Lie and others.

Looking at the Demon Killing Palace in the canyon, although it has the name of the Dao Palace, there are actually only a dozen magnificent and simple stone halls surrounded by a podium paved with marble, which is even simpler than the third- and fourth-rate sect Dao Palaces.

Chi Songzi was wearing a wide robe, standing in front of the pulpit to greet everyone, except for Hu Taiyan, the other disciples had already been sent by him to other Taoist palaces.

Chi Songzi waved the sleeves of his robe, and said with a smile to Chen Xun: "I guess before you go to Zhou Wushan, you will go here again." ”

Chen Xun pointed to the old man beside him, spread his hands and said: "The old man has something to hide, I can only force out the secret of the Xuyuan Hall little by little." ”

"Mr. Kui. Chi Songzi and Hu Taiyan stepped forward to salute Lao Kuiji.

Kui Long is not only the guardian of the Xuyuan Palace, after the fusion of the spirit and flesh, the body is initially reshaped, and the cultivation is also above everyone, the Kui Long Alchemy Technique practiced by the vast majority of the disciples of the four sects at this time is also the Tao of Lao Kui's enlightenment from his own natal supernatural powers, Chi Songzi, Hu Taiyan, and Ji Lie all regard him as a mentor and friend, not as casual as Chen Xun.

Lao Kui turned into a clear old man at this time, smiled slightly, and asked Chi Songzi: "You are sitting here, did you feel anything abnormal some time ago?"

"When the volcano of the Heavenly Furnace Secret Realm erupted, and a large number of Heavenly Flames gathered over the Thousand Demon Sand Sea, something seemed to awaken in the depths of the cave," Chi Songzi said, "It's just that this feeling for me is only for a moment, and after that, I have also gone down to the Void Yuan Palace, and I have found nothing." I planned to wait for Chen Xun to come back from the Heavenly Furnace and talk about it again, but I didn't expect Mr. Kui to know about it a long time ago. ”

Lao Kui nodded and said, "You can sense his existence, and his cultivation has really made great progress, and the realm of heaven and man is promising." The heavenly fire above the Thousand Demon Sand Sea did not appear for no reason, nor did it disappear for no reason. ”

There will be a heavenly fire in the Thousand Demon Sand Sea, which is actually caused by the eruption of the Heavenly Volcano in the Heavenly Furnace Secret Realm.

Tu Mountain is an important spatial node, and it is close to the actual distance of the Heavenly Furnace Secret Realm.

A large amount of Heavenly Flame Gang spilled into the Endless Void from the Heavenly Furnace Secret Realm, although it would not tear apart the spatial walls of Yunzhou again, but there were also many that seeped into Yunzhou from the sky above the Tushan Mountains.

However, the Heavenly Flame Gang did not gather as before, forming a different phase of Heavenly Flame Flowing Mist covering Tu Mountain, Chen Xun guessed that it was most likely absorbed by the Void Yuan Hall hidden in the cave at the southern foot of Tianzhu Peak.

The secrets of the Xuyuan Hall are only known to a limited number of people, and Chen Xun stayed in the Heavenly Furnace Secret Realm before, so it was inconvenient to exchange news with Chi Songzi Tong Guò others, so he didn't care about it, but he also knew that even if Lao Kui hid some secrets of the Xuyuan Palace, he would never harm the four sects.

This time, Wushan wants to join forces with the Xuandu Sect to clear the Black Yin Mountains, and Wushan seems to have risen to a height that people can admire, but Chen Xun knows that the foundation of Wushan is still very shallow, so he has to make up his mind in the Xuyuan Palace.

"So, when the Void Yuan Hall fell into Yunzhou, the machine spirit was not actually completely destroyed, but just fell into a long sleep, and this time after the Void Yuan Hall absorbed a large amount of Heavenly Flame Gang, it woke up again?"

The top-level celestial weapons and pure yang dao weapons, one of the biggest differences from other magic weapons is that the formation prohibition within them is extremely complex, and they will form a mysterious space similar to the spiritual sea, which can make the primordial gods of beasts, gods and demons attach to them.

Otherwise, the weak primordial spirit will not be able to get rid of the flesh and survive for a long time.

The formation prohibition inside the Pure Yang Dao Weapon is even more mysterious enough to breed spirituality, and can make the refined Yuan Shen more thoroughly integrate with the Dao Weapon, and even have independent spiritual intelligence.

This is the machine spirit.

Of course, you won't be able to refine the Yuan Shen casually, and you will be able to form an instrument spirit.

In that case, the machine spirit would be too worthless.

Generally speaking, the machine spirit should be able to control the Dao Yang Dao weapon independently, and at least reach the peak of the Dharma Phase Realm in the cultivation of the Divine Soul.

The internal formation of the Void Yuan Hall prohibits as many as the terrifying Nine Folds, before falling into Yunzhou, the former owner of the Void Yuan Palace, if he wants to use the Guò Instrument Spirit, he can exert the power of the Void Yuan Hall to the extreme, Chen Xun guessed that the Void Yuan Weapon's instrument spirit must be a desolate ancient divine soul with Nirvana realm cultivation.

In the past, Lao Kui and Chang Zhen avoided talking about the question of the machine spirit, and Chen Xun didn't ask it, because it was because his previous cultivation had not reached the level of asking about it.

After fusing with the Immortal Fetal Dao Seed of the Beidou Immortals, it was possible for his Second Elemental God Blood Crow to completely merge with the Xuan Jiang Seal and become the instrument spirit of the Xuan Jiang Yin, Chen Xun thought that it was time for him to ask about it.

Lao Kui smiled pretentiously, noncommittal, and said: "You have summoned all the people in Wushan who have the qualifications of Tianjingtong, don't you just want everyone to try, who is qualified to become the real heir of the Xuyuan Palace, and by the way, dig out the last secret of the Xuyuan Palace? ”

Everyone laughed, completely unable to imagine that Lao Kui was a desolate ancient holy beast that had cultivated for tens of thousands of years.

Zhao Chengen, Qianlan, Zuo Aoki, Du Liangyong and others all entered the Xuyuan Hall for the first time, and they were also shocked by the majestic Baizhang High Hall.

The reliefs on the four walls are all images of gods and demons, ancient desolate beasts, the silver-winged tigers that roar up to the sky, and the giant dragons that hover and fly are all trampled under the feet of the innate gods and demons and even the chaos gods and demons.

Zuo Aoki and others can recognize that the entire giant hall is made of Yuan copper.

Yuan copper, also known as red essence yuan copper, is the companion of red essence copper, is a common material for refining the prohibition of top ground level magic weapons, usually a huge red essence copper mine is dug up, or can get 350,000 catties of yuan copper.

Zuo Aoki secretly felt that the entire giant hall, and the Yuan copper alone might be enough for the Kuilong Pavilion to last for tens of thousands of years.

Chen Xun was not surprised, and directly led everyone into the third layer of Tianyuan Palace.

Chen Xun could only enter the Tianyuan Hall directly, and then from the fourth to the seventh floor, he had to pass through the trial prohibition attached to the Xuyuan Hall itself before he could enter.

Chen Xun was naturally confident to enter the fourth layer hall at this time, but even if he entered the seventh layer hall and obtained the final and complete version of the Xuanyuan Bible, it would not be of much use.

Ji Lie and Zhao Chengen wanted to practice the Xuanyuan Bible, and they also wanted them to go through the trial and prohibition by themselves to prove that they had the qualifications to truly pass on the Dao System of the Xuyuan Palace......

Chen Xun looked at Lao Kui and asked, "Is it time to open the trial ban, and let's go up and try it one by one?"

"Hey!" At this time, a very soft sigh came from the depths of the main hall, with the vast expanse of clouds and wilderness.

This soft sigh gave Chen Xun a feeling, as if he had returned to the moment when he had just been brought into Yunzhou by the six-armed troll. When the Gu Immortal Dao Void leaned out of the void, the feeling he gave him was also so desolate and vast.

Chen Xun was stunned there, he had speculated that the instrument spirit of the Void Yuan Hall should be a desolate ancient divine soul with Nirvana realm cultivation, but the vast Dao meaning revealed by this sigh was really not under the Gu Immortal Dao Void!

Chi Songzi, Ji Lie, Zhao Chengen, Su Tang, Zuo Qingmu, Qianlan, Hu Taiyan, Du Liangyong and others were even more struck by thunder, and they suddenly had the urge to bow and worship in their hearts.

After this sigh, no movement came from the depths of the hall, but everyone couldn't help but hold their breath.

Looking at Lao Kui's fugue appearance, everyone knew that he was communicating with the ancient gods in the depths of the main hall.

After a while, Lao Kui retracted his thoughts and said to Chen Xun: "Everyone else is waiting here, you follow me into the secret hall......"

"You don't have to go through a trial ban?" Chen Xun asked.

"The trial ban is just to confirm whether everyone has the qualifications to practice the True Monarch Dao System, since everyone has the qualifications of Tianjingtong, you can save these troubles and directly enter the fourth layer of the hall," Lao Kui said, "There is actually nothing in the fourth layer of the hall, it just means that everyone has the qualifications to practice the first layer of the Xuanyuan Bible, and you don't need to practice the Xuanyuan Bible, you will become the real guardian of the Yi Clan's War Soul Hall in the future, and the War Spirit Hall will naturally follow you in and out, and there will be no other restrictions." ”

"Yi Clan War Soul Palace?" Chen Xun asked in surprise, at this time, Chang Zhen said that the Xuyuan Hall and their true origin cannot be mentioned, otherwise the power of their clan may be sensed even if it is far away from the countless heavenly domains.

"Yes, the giant hall we are in is a battle soul temple of the Yi clan," Lao Kui said, "but after leaving this place, everyone still has to forget about it, the name of the Yi clan war soul hall, it is best not to even think about it." ”

Chi Songzi and Ji Lie both stood solemnly, they could imagine how amazing the secrets involved and the forces involved behind the Yi Clan's War Spirit Hall were, and they didn't dare to leak the slightest bit of their mouths.

Lao Kui said to Chen Xun again: "You forced me to reveal the last secret of the secret hall, do you feel the pressure now?"

"People die and birds are facing the sky, and I have no other advantages as a person, but I am stupid and bold. Chen Xun laughed, his words could be said generously, but he was able to not be afraid of the Yuanwu Marquis Mansion and the Red Eyebrow True Monarch before, in fact, he had experienced the big scene of the Gu Immortal Dao Xuan and the six-armed troll fighting viciously, and the Dao heart was extremely strong, but thinking that he was going to truly take on the responsibility of guarding the Yi Clan's War Soul Palace, and he might face enemies at the Brahma Gu Immortal level or even higher, he was still a little worried in his heart......