Back in Sky Fox City, the Sky Fox Clan had already assembled a team of five thousand people, including two thousand mine slaves, and Qin Chuan did not have the intention of helping them get out of the sea of suffering because they were humans.

Before leaving, he explained the matter of Venus Grass to the steward of Longteng Commercial Bank, and gave Bai Meiniang a few magic weapons, and copied a copy of the more advanced refining experience to her, which was regarded as a cheap disciple.

After the arrangements were made, with the Fire Fox King and the Black Fox King rushing to Scorpion Island, if there were no Sumeru treasures, it would not be easy to transport 5,000 people to Scorpion Island, which was three million miles away, but fortunately, the Sky Fox Clan was notoriously rich.

After half a month of day and night, I finally arrived at my destination.

The huge island is divided in half by a long and narrow mountain range, and the overall topography is also very peculiar, which is probably related to the great earthquake.

The demon cultivators of the Huoluan clan arrived a few days ago, and Qin Chuan learned from Feng Ming's mouth that they had fought a battle as soon as they arrived here, and the ape clan gathered some demon cultivators to capture Scorpion Island, and was finally taken back by them, but with the character of the ape clan who refused to suffer, it should not be good to give up, and the top priority was to set up a large defensive array.

After discussion, the three parties decided to divide labor and cooperate, the Tianhu clan carried out the construction of the mining area, the Huoluan clan temporarily took on the peripheral defense, which was their strength, and Qin Chuan focused on arranging the formation.

It is not unreasonable that the formation is the most difficult one in the six arts of cultivation, in addition to mastering the metaphysics of astronomy, geography, feng shui, and strong computing power, in addition, refining the array treasure is also a must, so every formation master must also be a refiner, on the contrary, with the ability to refine the weapon, it will be easier to learn the formation again.

Qin Chuan's computing power is probably unmatched in this realm, coupled with the identity of the refining master, although he didn't study the formation too deliberately, the level of the formation master is still there.

First of all, all the terrain around the vein is drawn on paper, and then analyzed according to many factors such as geology, water flow, wind, etc., and finally the type of formation is determined, and the soil and water formation are the most suitable.

These two formations have their own advantages and disadvantages, but they are not compatible, should they maximize the role of the middle mountain? Or should they make full use of the advantages of the rich aura of water in the air? Qin Chuan finally chose the former, because this is the spirit stone vein, so there is no need to worry about the consumption of spiritual power.

Qin Chuan did not have a ready-made earth attribute formation above the spirit level, so he had to refine a set by himself, and carefully read the formation classics left by Fu Yuanqing, and finally chose the "Liuhe Eight Desolate Kun Yuan Array", this array has a total of fifteen formation bases, six outside and eight inside, plus the central main control formation base, the advantage is that the double defense light mask, which is equivalent to the superposition of two sets of lower spirit arrays, the disadvantage is that there is no slightest attack power, if the central formation base is broken, the entire large array will be paralyzed immediately.

Qin Chuan spent nearly a month refining three sets in batches, one was directly laid down, one was left for the two clans for backup, and the other set was kept by himself.

After the layout of the defensive array is completed, prohibitions such as early warning prohibitions, space prohibitions, and divine consciousness suppression prohibitions are all necessary, which can greatly weaken the strength of the invaders.

Qin Chuan took the entire Scorpion Island as his test field, what small Sumeru forbidden formation, what phantom yin trace array, more than a dozen sets of formations, and also built eight small dark castles around the mining area, and linked them with teleportation enchantments.

When all the forbidden formations were arranged and the leaders of the Huoluan and Tianhu clans were invited to test, their faces were extremely complicated, on the one hand, this impregnable formation greatly reduced their defensive pressure: on the other hand, they couldn't help muttering in their hearts, this human race is really too insidious, if they come to attack Scorpion Island, I am afraid that there will really be no return.

In fact, it didn't take long for the forbidden formation on Scorpion Island to come in handy, the Golden Jiao Clan and the Ape Clan couldn't put pressure on the Sky Fox and Huoluan Clan, and it was not good to attack the territory of the two clans directly, so as not to cause a situation where the two sides would not die, so with the two clans as the leader, the Ten Thousand Demon Cultivators directly attacked the Scorpion Island.

The powerful space prohibition allows the demon cultivators below the ninth order to only fly on the ground, the misty islands make them unable to distinguish between the southeast and the northwest, and the illusion caused by the Phantom Yin Trace Array makes some demon cultivators with low cultivation kill each other, and the Sky Fox Clan and the Huoluan Clan secretly attack, and the work of half a day has already caused them to lose thirty percent of their troops, and it can be said that the Demon Clan Alliance has been defeated before they have touched the edge of the mining area.

Finally reached the core area, the Liuhe Eight Desolate Kun Yuan Array was fully activated, breaking through the outer light mask, and was blocked by the inner light mask, the inner layer was broken, and the outer layer had been bridged, leaving the demon cultivator in the formation to be killed by the monks defending the formation.

The demon clan generally lacks talent in the formation method, and only knows that the onslaught of going forward and backwards is useless except for increasing casualties in vain.

The leaders of the Golden Jiao Clan and the Ape Clan are not fools, seeing that they can't do anything, they ordered their subordinates to retreat, but they were attacked by the dark castles, each of which has two sets of Xuan Ice Arrays and two sets of Xuan Huo Arrays, although the attack power of the ice arrows and fire rain launched is not strong, but it is dense, and only a few rounds of attacks have caused thousands of casualties among demon cultivators.

The general trend has gone! Although the coalition forces have the ability to uproot the dark fort, I am afraid that there will not be many people left at that time, and saving lives is the main thing.

When he came, the lineup composed of tens of thousands of demon cultivators was terrifying, and when he left, he was disgraced, and only less than thirty percent of the remnants of the defeated generals remained, and what saw them off was a warm cheer.

This battle not only made the plan of the Golden Jiao Clan and the Ape Clan to take a piece of the pie come to naught, but also shocked Xiaoxiao, Scorpion Island suddenly became a tiger's den in Longtan, and it was not until decades later that no one paid attention to the top-grade spirit stone veins again, these are all later words.

Good things come in pairs, after more than two months of mining, the first top-grade spirit stone finally appeared, looking at the sapphire-like top-grade water spirit stone, everyone wanted to take it into their pockets, and finally because Qin Chuan contributed the most, the first top-grade spirit stone belonged to him.

Someone is going to ask, it took two months of mining to produce a top-grade spirit stone, what kind of top-grade vein is this?

Here I have to explain the definition of the grade of the vein, how the grade of a spirit stone vein is determined by two aspects: one is to look at the reserves, and the other is to look at the proportion of the spirit stone grade.

If the spiritual stone reserves are less than 100,000, they belong to micro veins, millions belong to small veins, tens of millions belong to medium-sized veins, 100 million belong to large veins, and billions belong to super veins.

If the ore vein reserves reach 10 million, but the reserves of medium grade spirit stone are less than one percent, then this vein is still regarded as a low-grade spirit stone vein, on the contrary, if the proportion of medium-grade spirit stone exceeds one percent, then this vein can be called medium grade, and so on, 100 million large ore veins, the proportion of high-grade spirit stone reserves exceeds 1/10,000, it is called a high-grade vein, and in the super vein, the reserves of the best spirit stone reach one millionth, indicating that this mine is the best vein.

Of course, it can't be generalized, some places are more special, such as the Blue Rain Immortal Mansion, which is obviously a medium-sized vein, but the proportion of high-grade spirit stones is amazingly high, which is completely caused by human factors, and cannot be regarded as common sense.

Qin Chuan stayed on Scorpion Island for a few more months, and left the Demon Spirit Continent after the mining of the ore veins was on the right track, and when he left, he asked that if the best metallic and fire attribute spirit stones appeared to be left for him, what price would need to be paid before negotiating.

If there is something to say, it is long and short, after returning to Zhongzhou, calculate the time, there is only one year left before the time agreed with Tang Xuan, go to Weitian City to live for three months, live in Longjiang City for two months, return to Hades Sect to deal with some affairs, and make some preparations, the three-year appointment is approaching.

"Husband, I want to go with you!" Mu Yilian said pitifully.

"If you can say what Elder Lu said, I can't wait for it!"

Mu Yilian's face fell, and there was no one on the Heavenly Furnace Peak who could replace her.

"Sister Lian'er is so pitiful!" Yaya was kind again.

"Or... Is it okay for Yaya to stay with my sister?"

Yaya scratched her head, "But... I want to be with my brother even more!"

"My sister will get you a lot of delicious food, and she will also make you a beautiful set of clothes!" Mu Yilian tempted.

"Sister, let's keep it for myself!" The little girl suddenly jumped on Qin Chuan's shoulder, took out a jade bottle from the bracelet, and poured out a sweet pill to chew.

Mu Yilian couldn't help but feel angry when she saw this, since this girl arrived, she felt that her status had dropped significantly, but she couldn't worry about the little girl.

"Lian'er can go to the Gale Sand Sea to find me when she has time, and I will come back when I have time!"

"Well, take care, husband!"

......

In the depths of the sea of gale sand, a majestic giant tower stands alone on the sand, and the wind and snow mixed with hail hit the pagoda with a "crackling sound, giving people a sense of desolation."

"But Qin Xiaoyou has arrived?" The tower door on the lowest floor opened, and an old man with a white beard and hair showed his figure.

"Senior, in Xia Qinchuan, I don't know what you call it?" Qin Chuan looked at the other party a little familiar, but he couldn't remember when he had seen it.

"Old man Hua Tianyun, back then, you only returned from the Taishi Realm to the Jindan stage, and now you have reached the middle stage of the Yuan Infant, this kind of cultivation speed makes the old man admire!"

"It turns out that you are Elder Hua!" Qin Chuan finally had the impression that when he came back from the Taishi Realm, there was indeed someone in charge of the introduction, but he was bent on killing Guo Buqun's father and son at that time, so he didn't pay much attention to it.

"Hehe, I'll take you to visit the Volcana Tower first!"

"Elder Tang hasn't arrived yet?"

"He's busy, I'm afraid it will take a few more months to arrive!"

The entire pagoda has a total of seven floors, and the lowest level has nothing but a teleportation barrier.

On the second floor, it is completely different from the lowest layer, the inner wall of the tower is depicted with complex formations, from time to time there is a huge bronze mirror, and there is a huge bronze mirror in the middle, and an old man in gray robe is sitting opposite the bronze mirror.

Seeing the two of them coming in, the gray-robed old man stood up and saluted, "Elder~"

"En, Li Xiu, let Qin Xiaoyou take a look at the situation in the formation!"

"Yes!"

Li Xiu played a trick, the image in the huge bronze mirror gradually became clear, the space was very large, and it was impossible to see the whole picture, there seemed to be a faint black mist floating, and a strange insect with blood shining all over his body appeared in the field of vision, this insect body was like a locust, but it had a pair of wings, and the head had two pairs of fangs exposed, which looked very vicious.

"This is the Blood Demon Worm?"

"Well, what you will mainly deal with in the future is this thing, this insect has the ability to devour blood, and can make the human body's blood uncontrollable, if several heads send out a bloody evil light to you together, you have to be careful, in addition, his teeth are highly poisonous, the blood in the body will coagulate if he is poisoned, and the ordinary antidote pill is useless, the most effective is the Snow Mountain Jade Toad Pill, and I will send you some when I turn around." ”

"Well, where is that Chaos Blood Demon?"

Elder Hua motioned for Li Xiu to move the picture, first an extremely thick pillar came into view, and as the picture turned, he saw the second and third pillars... The pillars shimmered with a blinding runic light, and moving further to the center, a monster with black fluff and orange skin was seen.

The picture zooms out, and gradually the whole of the monster can be seen, and it looks like a giant oval egg, but the wriggling black hair indicates that it is a living thing.

"This is the Innate Demon Fetus?"

"Well, the part of his front that is cracked is his mouth, which spews blood, has a strong filth and demonization effect, and the place where the blood demon worm is bred is at the bottom, and it will reproduce once in two or three years, and it can mature in five or six years, so it is generally cleaned up once in five or six years, in case its number is too large to break through the formation. ”

Qin Chuan nodded, and asked the gray-robed old man to switch the entire space again, and there was a general outline in his heart.

The third layer of the Demon Tower is the control center of the Eclipse Immortal Array, which does not need him to know too much, just tell him where the corresponding formation base is, and the fourth layer is the control center of the Evil Thunder Light Array, this array is arranged on the periphery, and it has a certain restraint effect on the blood demon insects, and the scope of activity of entering the monk is mainly in this array.

"Qin Xiaoyou, the fifth layer is where you and your companions usually rest and cultivate, the sixth layer is where I cultivate, and the seventh layer is mainly used for the Taishi Realm, so I won't introduce it to you, you can go and see it yourself if you have time!"

"Elder, can I enter at any time to destroy the Blood Demon Worm?"

"Yes, but without the need to replace and repair the formation base, try not to get close to the eighteen Demon Suppression Pillars, without Zhongzhou Ding suppression, once the Chaos Blood Demon goes berserk, you will be very dangerous!" After speaking, he took out three forbidden tokens.

Qin Chuan nodded, took it and checked it, and quickly understood the use of this token, with this card, you can enter and exit the evil thunder light array, and you can simply manipulate the formation attack, which is equivalent to the role of the formation talisman.

Going up to the fifth floor, the doors of several quiet rooms are open, and two of them are relatively clean, obviously someone lived here before, Mu Xiaoya and Yaya cleaned it, and they temporarily settled here.

Three days later, Qin Chuan greeted Elder Hua, came to the fourth layer, took out a token, played a spell, and the teleportation enchantment appeared, and then entered it.

As soon as he walked out of the teleportation barrier, several red lights hit him, he was already prepared, a seven-step small move dodged and dodged, and at the same time reached out and grabbed a palm-sized red bug in his hand.

The bug's two pairs of fangs immediately pierced the fingers, but were blocked by a thin layer of metallic gloves.

With a sharp push of his fingers, "poof", the insect was directly pinched and exploded, and the dark red blood fell on the glove and did not produce any reaction, but the blood droplets that fell on the Moyue Divine Light Armor were rapidly consuming the treasure light of the armor.

At this moment, three tooth-sore chirps came out, Qin Chuan felt that the essence and blood in his body had lost some of it, and then looked at the blood demon worm that had just been pinched and exploded, it had turned into a dried corpse, "What a powerful blood devouring technique!"

The Blood-Eater Demon Bat also has the talent of blood-devouring, but it is not so perverted.

The three blood demon insects that were obviously larger in a circle emitted three red lights at the same time, and with a "bang" sound, an umbrella-shaped magic weapon suddenly opened, just when the three red lights were held, the umbrella surface of this umbrella-shaped magic weapon was the same as a glove, and the red light hit it had no effect at all!

(End of chapter)