The price of high-grade spiritual materials is so expensive, just like those top-level materials in modern society, the price is so expensive that it is unimaginable to ordinary people.

Maybe in the eyes of ordinary people, the price of things like gold and diamonds is already expensive enough, and a gram can be sold for hundreds of yuan, but in the market, this price is actually not the highest, and there are more things than gold and diamonds.

Open our chemistry textbook and find on the periodic table a metallic element called californium, which is a radioactive metallic substance with the symbol Cf and atomic number 98. Californium belongs to the actinide series, is the sixth synthetic transuranic element, is the highest mass of the elements that can be spontaneously produced on the earth, first found in the dust produced by the explosion of the hydrogen bomb, in 1950 at the University of Berkeley with a 75 centimeter radius cyclotron to accelerate α particles, impact curium synthesis.

In the first test, only 5000 californium atoms were produced, its half-life is only a short more than 40 minutes, the californium content on the earth is very small, mainly distributed in uranium ore and not easy to dissolve in water, but will stick in the soil, so the content of californium in the soil is 400 times higher than that near the soil.

In 1975, the amount of californium that the world could provide was only 1 gram, and the price at that time was about 1 billion US dollars, even now, after the great improvement of refining technology, the market price of 1 gram californium has reached about 27 million US dollars, which is far more than gold, and it is definitely the most expensive metal on the earth.

And similar to this metal, there are still some on the earth, so don't think that gold is a precious metal, gold is only a precious metal in the eyes of ordinary people, but when it comes to the precious metal family, it is actually the existence of the bottom.

The same is true for the Yin Soul in the foundation building period, don't look at the Yin Soul is very common, and the price is not very high, but this is only for ordinary Yin Soul, once the level of the Yin Soul reaches the level of the Great Grandmaster, and above, then their price will rise a hundredfold, a thousand, ten thousand times.

To be honest, Lin Ze didn't expect that the price of the Yin Soul in the foundation building period would be so high, and the price of a hundred high-grade spirit stones, even if he was as rich as Lin Ze, he couldn't get it.

"I now know why the Xuanyin Demon Dao has not been able to recover the power of the Thousand Demon Flags for tens of thousands of years, and now there is only a very low-level strength left, it turns out that the reason is here!" Lin Ze sighed in his heart.

To be honest, Lin Ze couldn't figure out why the Xuanyin Demon Dao had such a powerful top-level magic weapon as the Thousand Demon Flags, and its status in the Demon Dao was not the top, and why the power of the Thousand Demon Flags was so low-level.

Now after hearing the price of the Yin Soul in this foundation building period, Lin Ze completely understood in his heart.

The Xuanyin Demon Dao is very powerful, but it can't afford the consumption of a thousand demon flags.

It's just that a Yin Soul in the Foundation Building Period needs hundreds of high-grade spirit stones, so how many spirit stones does a Yin Soul in the Jindan Stage need to be able to buy it?!

Moreover, there is no limit to the number of Yin Spirits that a Thousand Demon Banners can need.

Don't look at the number 'thousand' to name it, just think that as long as you absorb a thousand Yin Souls, in fact, this 'thousand' word is just a generalization, the meaning expressed is more, if you really want to restore all the power of the Thousand Demon Flags, the number of Yin Souls needed is calculated in 100,000, million.

Moreover, the Thousand Demon Banners can also continue to advance, as long as you continue to replenish the Yin Soul into it.

Therefore, the Thousand Demon Flags are actually an infinite treasure, as long as you have a sufficient number of Yin Souls to absorb it, it will have an unlimited future in the future.

A Yin Soul needs hundreds of top-grade spirit stones, what about tens of thousands, 100,000, millions.......

Don't say tens of thousands, 100,000, millions, even if it is only a thousand, Lin Ze has a headache when he sees it.

Each of the 1,000 Yin Souls in the foundation building period needs 100 high-grade spirit stones, and those 1,000 are 100,000 high-grade spirit stones.

This is only the foundation building period, if it is replaced by the yin soul of the Jindan period, and then replaced by the yin soul of the Yuan infant stage........

Lin Ze didn't dare to think about it anymore, because it was a number that he didn't even look at and think.

"Before, I thought that I was the top rich man in the cultivation world, but now it seems that not only am I not a rich man, but even half of my food and clothing have not been solved!" Lin Ze was heartbroken, he was indeed a little hit now, and he really realized the difficulty of cultivation in the cultivation world.

It takes so much money to repair a Thousand Demon Flags alone, so wouldn't it take more money if you want to do something else?!

Thinking of this, Lin Ze made up his mind in his heart that after he went back, he would vigorously develop the economy, otherwise, he really couldn't afford to cultivate in the future.

The price of the Yin Soul in this foundation building period can be said to be extremely expensive, no wonder a sect like the Xuanyin Demon Dao is reluctant to spend money to buy it here.

Seeing that Lin Ze only showed a trace of surprise on his face, there was no anger, and a hesitant expression, and the middle-aged man on the side directly showed a smile on his face, because this meant that Lin Ze was just a little surprised by this price, but it was not that he couldn't afford it.

Thinking of this, the middle-aged man poured himself a cup of tea unhurriedly, took a sip, and continued: "Fellow Daoist, don't look at the Yin Soul in this foundation building period is very expensive, but it's also worth the money, isn't it?"

When he said this, the middle-aged man paused, and then said in a different tone: "However, if you think that you can't accept this price, then you might as well change it." The previous supreme grandmaster-level Yin Soul, although the price was also a hundred spirit stones, it was a medium-grade spirit stone, which was equivalent to ten high-grade spirit stones. ”

Lin Ze glanced at the other party, didn't say much, and directly patted the storage bag beside him, and a thousand-year-old jade mushroom flew out immediately, and soon lay it flat on the table.

"Millennial Yuzhi, or is it of top-grade quality?" the middle-aged man's tone was slightly surprised.

He gestured to Lin Ze and wanted to pick it up and take a look, but Lin Ze nodded in agreement.

Soon, the middle-aged man picked up the thousand-year-old jade mushroom on the table, looked at it carefully, and then quickly put it aside, first pondered for a moment, and then raised his head and said: "This is a top-grade thousand-year-old jade, the quality is top-notch, if you have such a flower, I can buy it for two thousand top-grade spirit stones, fellow Daoist, do you agree?"

After speaking, the middle-aged man's breathing was slightly short, and he quickly glanced at the thousand-year-old Yuzhi on the table, and his divine sense had already judged that this was definitely a genuine thousand-year-old Yuzhi, and it was full of activity, even if it was not just out of the picture, but the time would not exceed ten days.

A whole treasure like an extremely complete and active thousand-year-old Yuzhi, the price is so high, it is simply equivalent to a war puppet with the peak strength of Jindan, and even in terms of market demand, the thousand-year-old Yuzhi is higher, this kind of high-level spiritual material, even in the current Wanbao Pavilion, can also be said to be the top spiritual material.

And, most importantly, this thousand-year-old jade mushroom is the size of a head, it is still alive, and if it is planted now, it can continue to grow.

To be honest, although the middle-aged man is well-informed, the top-level spiritual materials he encountered before are at most some of the spiritual materials of the early stage of Jindan. As for today's top-notch thousand-year-old Yuzhi, it was really the first time he had seen it.

Therefore, this middle-aged man would immediately come up with the sky-high price of two thousand high-grade spirit stones, otherwise, if it was just a dry thousand-year-old jade mushroom, he would produce five hundred high-grade spirit stones, which would be considered good.

However, it is obvious that Lin Ze is not a fuel-efficient lamp, and he also understands how rare it is to see such a living thousand-year-old Yuzhi in the market.

"Three thousand, no counteroffer!" Lin Ze said with a firm face, and after that, he directly picked up the teacup on the table and drank it like this.

“....... Okay, three thousand high-grade spirit stones, deal!" The middle-aged man only thought for a few seconds before quickly agreeing to the price.

"Fellow Daoist, where do you still have such a top-grade thousand-year-old jade?" After talking about the price of this thousand-year-old jade, the middle-aged man began to investigate, wanting to buy more thousand-year-old jades of the same level.

"Let's take thirty Yin Spirits of the Foundation Building Period first. Lin Ze didn't say anything else, and directly asked to trade first.

The thousand-year-old jade mushroom is extremely precious, and Lin Ze would not take it out easily, if it weren't for Gu Xiyao's collection of yin souls this time, where would Lin Ze take out such a precious thousand-year-old jade mushroom.

Moreover, the thousand-year-old Yuzhi is too conspicuous, and it is easy to cause some bad thoughts, so it is better to complete this transaction first before talking about other things.

"Okay, okay, I'll get something. The middle-aged man also realized that he was in too much of a hurry before, so he quickly ordered to bring the Yin Soul that Lin Ze needed.

In less than five minutes, the deal was completed.

Seeing that Lin Ze had put away all the Yin Souls, the middle-aged man couldn't help it anymore at this time, and once asked, "Fellow Daoist, do you still have a thousand-year-old jade mushroom in your hand?" If you have one, I will buy it at the price of three thousand high-grade spirit stones. ”

"Huh...... , I'm really sorry, I only have this thousand-year-old jade mushroom in my hand. ”

After saying this, Lin Ze didn't wait for the middle man to reply, grabbed the storage bag containing thirty foundation building period ghosts, turned around and walked downstairs.

The thirty top-grade Yin Souls of the Foundation Building Period were almost empty of the Yin Souls of the Foundation Building Period in the Wanbao Pavilion, and if he continued, Lin Ze would not be able to buy much.

Moreover, Gu Xiyao's strength is still too low, and now it is not easy for her to digest the Yin Soul of the Foundation Building Period, so thirty Yin Souls of the Foundation Building Period is enough for Gu Xiyao.

Therefore, after Lin Ze completed the thirty foundation building period ghosts, he left Wanbao Pavilion directly.

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