Zhang Hongyu looked at the vein point that Gongsun Li handed to him, there are spirit stone veins and metal spirit ores in these spirit mines, and the most surprising thing is that the underground dark river in the original ore vein actually reappeared in a mining site, and there are countless spirit grasses growing next to the dark river, these spirit grasses are very rare, Zhang Hongyu directly selected this spirit ore point.

The construction of the Flying Fortress requires a lot of ore, and in addition to the mining team, the eight teams have been dispatched to two teams to be on guard, and the remaining six teams have all joined the mining team.

"Hall Master Zhang, shall we dig down now?"

Wu Tianxing stood in front of the mine with more than 2,000 people, looking at the warriors behind him, all of them were full of energy.

Zhang Hongyu had already ordered the mining team to open several mines near the mining site, but the mining holes were only a little underground, not deep, and there were not many diggers, and this time they were responsible for playing auxiliaries.

For example, if the soldiers have the strength but do not know the knowledge of mining, they can just carry the pickaxe and dig down, and there will be a special mining team to follow behind to strengthen the mine hole, repair the mine ladder, etc.

After almost all the employees of Zichen Mansion participated in mining, good news came from one mine after another, and a large amount of dark iron stone was found at the No. 1 mining site!

"Darkstone?"

When more than a dozen warriors laboriously lifted out a dark stone from the No. 1 mine cave, Zhang Hongyu frowned deeply, there was not much dark iron ore in Gongsun Li's map, he still thought that the dark iron ore vein no longer existed, did he not expect these dark iron ore to turn into stones?

"Wait. ”

Zhang Hongyu looked at the black boulder in front of him, and couldn't help but move, in the puzzled expressions of the people around him, several small swords flew out of Zhang Hongyu's storage ring, constantly cutting on the black boulder.

Black stone dust poured down, and a red light suddenly appeared.

"What is this?" Wu Tianxing on the side came over with wide eyes, he touched the ore that was as red as an agate, and suddenly became a little obsessed.

"How many spirit stones can such a large gem be worth?"

"What a stone is the spirit!" Han Xiaomei glanced at him angrily, after she practiced Gongsun Li's exercises, the temperament of the whole person has completely changed, before Han Xiaomei was like a girl next door, lively and cute, now the Nine Yin Spirit Body has awakened, and she has practiced special exercises, and the temperament of the whole person has become deep and cold, but she has always maintained her previous appearance in front of Wu Tianxing, and the two diametrically opposed feelings make Wu Tianxing quite unstoppable.

"This is not a dark iron stone, but a black iron pith, a hundred stones out of the marrow, if there are really so many dark iron stones in the No. 1 mine, Tianxing, you should make the first contribution!"

Zhang Hongyu's words made Wu Tianxing very happy, he didn't expect his luck to be so good, the other captains showed him envious looks, if Zhang Hongyu can evaluate this time, it won't be long before the team can change their outfits again, and they can only use the equipment eliminated by the team.

Zichen Mansion's meritorious deeds are set by Fu Bo, the rewards are, big merit, flat merit and small merit, these merits are divided into individuals and teams, because on the map of Gongsun Li, there is no Xuaniron stone in the No. 1 mine cave This kind of spiritual mine, so this Xuaniron stone is completely the credit of a team, if the number of these Xuaniron stones is enough, a team will be able to evaluate a great achievement.

"Congratulations!" Han Hongyi walked over and arched his hand to Wu Tianxing, saying congratulations in his mouth, but his expression was not salty or light.

"Hahaha! Uncle, just take a look! My mine cave is not built, in addition to this dark iron stone, there must be other spiritual mines, I won't tell you, I will go down to inspect it myself!" Wu Tianxing waved his hand at Han Hongyi, turned around and walked towards the mine.

"Villain Dezhi!" Han Hongyi exhaled deeply, forcibly suppressed the urge to punch Wutian, turned around and shouted to his subordinates: "Hurry up and explore the spirit mine!

After speaking, Han Hongyi led the team to the mine quickly.

When Fu Bo and the others inspected at this time, they couldn't help but smile with relief when they saw the busy mining site, but when he took over the list of subordinates, his face instantly dropped.

"How can so many people dig up such a few mines in so many days? What are they doing underground?" Fu Bo found Zhang Hongyu Xingshi and asked him for his guilt.

"Fu Bo, Tianxing has dug up the Xuaniron Stone, which has stimulated everyone else, and now he has been exploring the ore site, and he has not yet excavated the spirit mine. Zhang Hongyu smiled bitterly.

"Outrageous! I need ore now, what's the use of detecting so many ore sites? Can I use mine sites to build a city wall? Or can I use mine sites to build a flying fortress? Gather all the people for me to mine No. 1! Bring the dark iron stone up first and then go to probe!"

Fu Bo has spoken, others can only do it, now in an extraordinary period, the dark iron stone has a great use, although it can not build the city wall, but can be used as the filling of the city wall, these stones are not spirit stones but have a hardness comparable to the black iron, and the outside is plated with a layer of soft steel and even stronger than the full soft steel.

The idea of composite metal was proposed by Zhang Hongyu, and after the experiment of the Divine Craftsman Hall, it was found that it was indeed feasible, and it could save a lot of soft steel and manpower, this discovery made the No. 1 Mine Cave completely detonate, and under the order of Fu Bo, countless dark iron stones were transported to the ground, and then transported to the Spirit Stone Valley by other auxiliary members of the Hall, and a long transportation line was suddenly generated.

The Xuantie Stone was transported to the Divine Craftsman Hall, and after the Divine Craftsman Hall was polished and forged, there was a congenital martial artist who was specially responsible for transportation and sent it to the rebuilt fortress with a storage bag.

"I mean to turn the fortress into a whole, there is no need to keep the city gate, and the useless things like the moat, anyway, the entire Flying Fortress is going to be made into a spiritual weapon, and there is no need to do it like you. ”

Gu Chengdu glanced at him and retorted: "I don't know how long it will take to build a spiritual weapon, Zichen Mansion needs a city to support the façade, haven't you noticed that we are recruiting fewer people now?"

"Why do you want so many people? Zichen Mansion is not a relief hall, and it is a problem to have too many people and logistics, and you don't know how troublesome the internal affairs hall is now. Zhu Old Man said disdainfully.

He has always been against recruiting people, their Shenjiang Hall and the Internal Affairs Hall are not far away, I wish the old man is okay to go to the Internal Affairs Hall, Gu Chenggong and several other housekeepers are busy every day because of the recruitment of people.

"If you can make it into a spiritual weapon, I won't be worried about the door, and then where will we get out of the door of the undisturbed door?" Gu Chengdu is very unhappy, I wish the old man has been grinding with him for a day, and he has been talking to him about the problem of Anchengmen, this is a selective problem, what kind of big force is the uneasy gate?

The problem that the two of them are studying is also being studied by Zizhulin.

In the purple bamboo forest, Gongsun Yan was deducing the formation, Gongsun Li was depicting the formation line diagram on the side, and in front of the two of them, the detection ball reflected the entire Spirit Stone Valley.

In the middle of the bamboo house, there is a semi-finished product of a sand table, after Bing Ning'er came back from the outside, she saw that the formation of the two people had been deduced to the next step, and she also began to depict it in the sand table, the sand table was made according to the detection ball, this work was very draining, Bing Ning'er chose to take the initiative to do it for her in order to let her grandson and grandson rest for a while.

"I'm going to go out in a few days, it's very difficult to get the formation of the Super Spirit Gathering Array, and I can't say that I have to go back to the state again this time. Gongsun Li sighed, if there was no need, he didn't want to go back to Lizhou, the people in Huangji City were about to look for him to go crazy, he knew that Huangji City would not let go of himself easily, it was easy to join a force, but it was difficult to quit, especially a national force like Huangji City.

"Why don't I go for a trip?" Bing Ning'er stopped her spirit pen and said softly.

"No!" Gongsun Li shook his head, "Your identity is too special, and if you go, people may not buy it." The value of the array disk is extraordinary, it is not something that can be purchased with spirit stones, and the gang of people in the black world only recognize their faces and do not recognize money.

At this point, Bing Ning'er couldn't say anything, she could only tell Gongsun Li to pay attention to safety and keep a low profile.

There is another important thing before Gongsun leaves, on this day, all the innate soul annihilation realm martial artists of the Transformation Realm gathered in the center of the Spirit Stone Valley, before this, all the people in the Spirit Stone Valley have been withdrawn, and the Spirit Stone Valley is about to lay the plate, this is a big project, which requires everyone's cooperation.

The so-called plate can be understood as the floor, assuming that Lingshi Valley is a house, then what they have to do is to lay the floor of this house, the floor of Lingshi Valley is not an ordinary floor, he not only has to bear the weight of the entire Lingshi Valley, but also an important core placement of the formation.

One day in advance, all the warriors emptied the Lingshi Valley, and the houses built before were also moved, except for the Purple Bamboo Forest and other places, the Lingshi Valley is now almost the same as when Liu Zheji first entered.

"You only have five breaths! Get ready for me to start!" Gongsun Yan said to everyone with a solemn face.

The dozens of innate martial artists below nodded solemnly, and they were ready to make a move at any time when they raised their true qi.

"Five Elements Formation! Reverse the Universe! Change the Heaven and Earth!" Gongsun Yan shouted, slapped the storage bag, and the two spirit cores, one green and one black, were suddenly photographed out by him, the formation that Gongsun Yan wanted to cast was a combined formation composed of two formations, and the aura required by the formation was very huge, and the super spirit core just met this.

I saw that the two spirit cores appeared at the same time, attracted to each other, and the spirit cores that were originally standing on one side were suddenly pulled together, and the whirlpool in Gongsun Yan's eyes appeared at the right time, and the two were also like the whirlpool in his eyes, revolving around each other.

"Buzz!"

The rotation of the spirit core drove the convergence of the spiritual energy of heaven and earth, and there was a whirlwind in the entire spirit stone valley, and the spiritual energy visible to the naked eye gathered at the spiritual core to form a black and blue two-color vortex, and the two vortices looked extremely beautiful, just like the Milky Way stars in the sky.

"It's ......"

The surrounding warriors looked at the incomparably beautiful aura vortex in amazement, and a strange aura came out of the whirlpool.