Duan Chen didn't know that Taimiao Zhenren and Taixu Zhenren were discussing things about him, and after he left the lobby of the City Lord's Mansion, he went directly to see off Huangfu Mountain and the others.

After all, they will go to the front line with the Taixu Zhenren later to meet the Sword Boundless Elder.

The six of them gathered in the room of Huangfu Mountain, only to hear Huangfu Shang say with a serious face: "Little junior brother, originally senior brother wanted to take you with him, so that he could take care of you in the big war, but now it seems that Uncle Taimiao and they seem to have other arrangements for you foundation building monks. ”

Duan Chen said: "Senior brother, don't worry, I will take care of myself, but senior brother and sister, when you go to the main battlefield on the front line this time, you will inevitably meet the Jindan monks of the Demon God Society, so you must be very careful when the time comes." ”

Although Duan Chen didn't know how Taimiao Zhenren would arrange for them to build the foundation next, it seemed that he didn't plan to send them to the front line, otherwise it would be good to let them set off with Huangfu Mountain.

At this time, I only heard the second senior brother Han Feng smile and said: "There is a sword and boundless elder in the main battlefield of the front line, junior brother, don't worry about us, besides, our senior brothers and sisters each have their own hands to save their lives, but they won't fall on the battlefield so easily." ”

Shi Yunzhao snorted lightly and said: "That's it, don't think that you once killed a Jindan Demon Clan, you dare to underestimate us, no matter what the five of us say, we are also your senior brothers and sisters, how can we lose to you a foundation building great consummation?"

Duan Chen couldn't help but smile bitterly: "Fifth Senior Sister, I didn't mean that. ”

Nalan Xue smiled and said, "Okay, Fifth Senior Sister, you know that Little Senior Brother doesn't mean that, so don't tease him." ”

Duan Chen noticed a hint of cunning flashing in Shi Yunzhao's eyes, and couldn't help but secretly breathe a sigh of relief.

Next, the six of them chatted in the room for a while, and Huangfu Mountain and the others received the summons from Taixu Zhenren, and then left Beijiang City with Taixu Zhenren and rushed to the main battlefield of the front line.

It is said that the many Jindan and False Dan monks gathered by the four dynasties, as well as the alliance army composed of Qi refining and foundation building monks, are all in the temporary camp built at the front line of the battlefield at this moment, and the Northern Frontier City, which was supposed to be the assembly point of the alliance army, has become a supply base.

Unless the main battlefield of the front line is defeated and collapsed, the alliance army will never retreat to the side of the northern frontier city.

In addition, in the previous battles, the alliance army also occupied many ore veins that originally belonged to the Northern Xia Dynasty.

Although many of these veins were later snatched back by the Northern Xia Dynasty and the Demon God Society, many of them were still under the control of the four major dynasties, and there were dozens of them.

The main task of Duan Chen and the other foundation building monks who were left behind, as well as the tens of thousands of monks who came from Nanban this time, was to ensure the safety of these veins when the alliance army on the main battlefield of the front line was fighting, and at the same time, they could also wait for opportunities to act to deal with the alliance army on the main battlefield from other directions.

Therefore, not long after Taixu Zhenren, Huangfu Shan and others left the Northern Xinjiang City, the army of tens of thousands of Southern Barbarian monks was broken up into dozens of teams of 1,000 people, some of whom were responsible for garrisoning the ore veins, and some were responsible for supporting the guerrillas from the side of the main battlefield, with different combat missions.

Duan Chen, Li Mubai, and Gu Ling'er were arranged by Taimiao Zhenren into a team of 1,000 people who were responsible for guarding the ore veins.

It is worth mentioning that not only is the person in charge of this team the old lady Jia of the Northern Xinjiang City Lord, but even many of the Southern Barbarian monks assigned to it are from the Great Shang Dynasty, and the Gongyi Ancestor and the Gongyi Muyun are also among them.

However, in the team that the two of them were in, there were not too many other disciples of the Gongluo family.

Thinking about it, this is also a deliberate effort by Taimiao Zhenren, deliberately splitting the disciples of the Gongluo family into dozens of other teams.

After all, the lessons of the past are still in front of us, and the public loss family once colluded with the demon gods, so in this regard, Taimiao Zhenren has to guard against it.

In this way, everyone was assigned to different teams, and then, under the leadership of the leading False Dan monk, they left the Northern Frontier City on the flying boat, or went to the major mines, or wandered outside the main battlefield to assist the army of the Four Dynasties Alliance.

And the thousand-strong team that Duan Chen and the others were in were led by Mrs. Jia, and after several days of long travel, they arrived at a mountain range located in the southwest of the Northern Xia Dynasty.

As for the copper vein they were going to guard, it was hidden in an underground cavern in the mountains.

You can see that above this underground cavern, a castle that has only recently been built is standing on it, looking very new.

Duan Chen and his entourage, under the leadership of Mrs. Jia, flew directly towards the castle.

At the same time, several fake Dan monks who were originally responsible for guarding this copper vein also led dozens of foundation building monks to fly out of the castle to greet everyone, which made Duan Chen couldn't help but be surprised.

After all, there are more than a dozen False Dan Monks gathered in this castle at the moment, and there are as many as hundreds of Foundation Cultivation Monks, plus nearly a thousand Qi Refining Monks gathered here, such a defensive force is really a bit too powerful.

And such a powerful force, just to protect a copper vein, in Duan Chen's opinion, is a bit of a fuss.

After all, as far as he knew, the copper ore produced by this copper vein could only be used to refine magic weapons, and it was not worth spending so much strength on guarding it by the Four Dynasties.

Perhaps it is the relationship between the rich reserves of this copper vein.

Duan Chen had to guess so in his heart, and then flew into the castle under the leadership of Mrs. Jia and the other fake Dan monks, and settled down to rest.

However, after a day's rest, Mrs. Jia gathered everyone together and briefly told Duan Chen and them about the situation of this copper vein, and then arranged tasks for everyone.

Among them, the Qi Refining Monks were mainly responsible for going down to the underground caves under the castle to mine copper ore, while Duan Chen and other foundation building monks were divided into dozens of groups and took turns patrolling inside and outside the castle.

And Mrs. Jia and other fake Dan monks are responsible for arranging formation prohibitions inside and outside the castle.

Everyone has no opinion on such an arrangement, or dare not have an opinion.

After all, this is a special moment when the war broke out, and the military order is like a mountain, if anyone dares to drop the chain at this time, the consequences are unimaginable, and in serious cases, they may even be killed on the spot, so as to achieve the goal of killing chickens and monkeys.

Of course, with Duan Chen's current status, no one dares to point fingers at him, but Duan Chen, as a disciple of the Desolate Heavenly King, will not have anything to do to resist the orders of Mrs. Jia and other fake Dan monks, after all, that's the case

It will damage the prestige of the Desolate Heavenly King.

Fortunately, Mrs. Jia is still quite knowledgeable, not only did she divide Duan Chen and Li Mubai Gu Linger into a group, but also arranged a lot less patrols for the three of them than others.

In this way, Duan Chen would have more time to stay in the castle and cultivate with peace of mind.

Of course, in the case that the enemy might attack at any time, Duan Chen naturally would not choose to cultivate the Demon Immortal One Thought Method at this time, after all, if he broke through the False Pill Realm at this time, in case the enemy attacked, he didn't dare to pin his hopes on Mrs. Jia and they would definitely be able to block the enemy's attack.

Therefore, after some careful consideration, Duan Chen planned to temporarily slow down the speed of cultivating the Demon Immortal One Thought Method, and instead cultivate several secret techniques recorded on the blood nerves.

It just so happened that he had already cultivated the blood nerve to the second level not long ago, and had reached the cultivation requirements of some secret techniques.

This is also the only way Duan Chen can think of to improve his strength under the current circumstances.

Moreover, when dealing with the demon dust wind at the beginning, the blood spirit bead condensed by Duan Chen's blood nerve also exerted a lot of power.

Although judging from the results later, the Blood Spirit Bead was not a big threat in dealing with the Jindan Monk, if it was used to deal with the Fake Dan Monk, if the other party was defenseless, Duan Chen would still have the confidence to kill the other party with the Blood Spirit Bead.

And the blood nerve can break through to the second layer of the several secret techniques that can be cultivated, and the power is still above the blood spirit bead, so if Duan Chen can practice these secret techniques, he will be more sure of surviving in this chaotic battle in the Northern Regions.

Thinking of this, Duan Chen did not hesitate to begin to cultivate several powerful secret techniques recorded on the blood nerves.

In the secret room, but seeing that Duan Chen had words in his mouth, he followed the magic trick in his hand like a wheel pinching, changing rapidly.

A moment later, he suddenly bit the tip of his tongue and opened his mouth to spew out a cloud of blood mist, which quickly spread out in mid-air, and under the manipulation of Duan Chen's magic technique, it differentiated into dozens of blood needles as thin as a cow's hair.

Just as Duan Chen was about to manipulate these blood needles to fly out with a wave of his hand, he saw that the dozens of blood needles like cow hair suddenly trembled and burst open, turning into blood mist and dissipating in the air.

Obviously, Duan Chen's first cultivation of the secret technique recorded in the second layer of the Blood Nerve ended in failure.

Those dozens of blood needles as thin as cow's hair were the blood shadow needles he had condensed through the secret technique of blood control.

This kind of blood control secret technique is to attack the enemy by condensing one's own blood into various weapons to achieve the effect of surprise.

The blood spirit bead condensed by Duan Chen before can be regarded as a kind of use of blood control secret techniques, but the blood spirit bead is a one-time self-detonation thing that cannot last long, and if Duan Chen can delicately control his own blood to condense into various weapons, he can form a continuous combat power.

Moreover, the blood that can be controlled by the Blood Control Secret Technique is not limited to Duan Chen himself, he can also manipulate the blood in the opponent's body in the air, do things such as the retrograde operation of the blood, and even use the blood in the opponent's body to condense the blood shadow needle and other hidden weapons to directly attack the opponent's vital points from the body.

Of course, in order to achieve this level, it is necessary to cultivate the blood nerve and the blood control secret technique to an extremely advanced realm at the same time, and Duan Chen obviously can't do this at the moment.