At the moment when the four words of the outer soul bone appeared, Cheng Xiao could even detect Dugu Bo's slightly heavy breathing.

But after a while, Dugu Bo calmed down again, and immediately shook his head, and said: "The external soul bone is enough to rank in the top two of all the soul master dreams in the continent, and it is only a little worse than the 100,000-year soul ring, the number is scarce, but it is impossible to find, how can it be so easy to get." ”

Saying that, Dugu Bo glanced at Cheng Xiao and said sourly: "Do you think they are all as lucky as you?" ”

Cheng Xiao smiled, before the second paper was published, he confessed to Ye Renxin about the twin martial souls and the thousand-year soul ring, and the matter of the external soul bone was also not left behind.

In order to avoid causing a lot of trouble in the future, Ye Renxin helped Cheng Xiao completely fuse the left metacarpal bone of the crystal bear.

This matter was also known to Dugu Bo later, which made Dugu Bo sour for a long time.

External soul bones are indeed rare, but it also depends on who is right, anyway, from Cheng Xiao's point of view, there is really a chance to get another external soul bone.

However, it is not convenient to say this to Dugu Bo, otherwise it will be impossible to explain how he learned about the future.

"What about the second way?" Ye Renxin asked.

"The second way......" Cheng Xiao pondered for a moment, a little hesitant to say it, "It's a bit dangerous." It's not perfect yet. ”

"Let's talk about it first." Dugu Bo said indifferently.

"It's similar to Long Dan, but there are many differences, this conjecture comes from my desire to study the reason why soul beasts produce soul bones, and it turns out that there is a very interesting phenomenon...... I call this thing a soul core! ”

Soul core, this is the idea proposed by Cheng Xiao!

It took 10,000 years for this method to be gradually studied.

In the earliest days of the soul core, it was the result of someone studying the essence of the soul bone.

When people were studying the reasons for the formation of soul bones, they found a very interesting phenomenon, that is, in the process of soul beast growth, there are some special individuals who will compress their soul power into a solid nucleus in their bodies.

And most soul beasts will not compress their soul power.

And people were surprised to find that those individuals who compressed their soul power into a nucleus, after death, the soul power core would turn into the most characteristic soul bone of the soul beast during its lifetime!

Most of the spiritual soul beasts are heads, most of the strength are arms, and the speed type soul beasts are legs, and the soul beasts with strong comprehensive strength are the torso bones.

Under normal circumstances, whether or not a soul power core can be formed is related to the qualifications of the soul beast individual.

Don't think that there is no difference between individual soul beasts, there are always soul beasts that are blessed, either they have extremely high IQs, or they are coincidentally subdued by some kind of natural treasure.

In short, only extremely excellent soul beast individuals can form a soul power core.

It is difficult for a soul beast without a soul power core to provide soul bones. And when the soul beast reaches 100,000 years, the soul power grows to the extreme, and it will definitely be able to compress the soul power core, which is also the reason why the soul beast will produce soul bones in 100,000 years.

The soul beast race with a very high bloodline level is born with the ability to condense soul power cores, such as the dragon race, and it must be a true dragon race, not those sub-dragon species.

If the beast fails to cross the catastrophe, the soul core will also be annihilated, and it will also be unable to provide soul bones; If the soul beast fails to rebuild or is hit by the soul core, it will also lose the soul bone; The soul beast's soul power is plundered, and the soul bone will disappear.

As soon as Cheng Xiao's words came out, Ye Renxin and Dugu Bo's shocked faces immediately changed drastically.

Because, in this period, everyone doesn't know about the soul core, and even the formation of the soul bone is not clear.

If this idea is verified, wouldn't it be possible to go one step further and simulate the formation of soul bones and create artificial soul bones?

And whoever can master this method will definitely be able to become the number one force in the entire Douluo Continent! A well-deserved first sect!

Dugu Bo's scalp is a little numb, where did this kid get so many wild ideas?

If this news spreads, countless forces will go crazy for it!

It's just that he is a Title Douluo, and he can't protect this kid at all!

Ye Renxin's face was solemn, but his mind was quite agitated, he could understand how great this idea was from Cheng Xiao's words, and he really wanted to join in to improve this idea.

But immediately, a trace of bitterness welled up in Ye Renxin's heart, he was afraid that he would not be able to see it in this life, and he only had more than a year to go, and he couldn't wait for that time at all.

Seeing that the two didn't speak, Cheng Xiao was slightly silent, and when the two digested the news, he didn't know what the two of them thought, if he knew, he would definitely praise the two.

10,000 years later, human beings created relatively inferior artificial soul bones and secret soul bones; And 30,000 years later, human beings have perfected artificial soul bones, but the price is extremely high, and it is not something that ordinary people can consume.

"How did you come to this conclusion?" Dugu Bo was a little puzzled, this kid is too rebellious, right? How do you feel like you know everything.

"It's not a conclusion, it's a conjecture!" Cheng Xiao emphasized.

Unlike records such as the quality of martial souls and soul rings, which have a huge amount of data, he didn't find much information about soul bones in the Martial Soul Palace.

In this era, not only are there very few Title Douluo, but soul bones are even more rare objects, and it is not easy to form a huge sample size.

Even the Martial Spirit Hall was unable to collect a large number of observation samples for the soul bones of soul beasts.

There is a lot of soul bone ability information, but that is not what Cheng Xiao wants, what he needs is the growth data of the soul beast and the observation process of the formation of the soul core.

As for the information of the fierce beast, the Wuhun Hall did not even leave a single word of the fierce beast.

No one knows about the plundering of soul power, and Cheng Xiao only knows one case, and that is Tianmeng.

The few examples of soul beast transformation and rebuilding in the Martial Soul Hall are not enough to prove this theory for various reasons.

Therefore, Cheng Xiao can only package it as a conjecture, a speculation to be verified.

Can you make Dugu Bo and Ye Renxin believe it, he has no bottom in his heart.

That's why he hesitated.

But considering that Dugu Bo is even willing to break into Thunder Valley, he doesn't plan to hide it privately, whether he believes it or not, it's up to them to decide.

Ye Renxin nodded, but he didn't say anything, after all, many theories start with conjectures, and after they are confirmed, they become theories.

"You said this is ......" Dugu Bo hadn't been able to think of anything from the soul beast.

"That's what I think, Grandpa Dugu can find another way, imitate the dragon clan to condense the dragon pill, and condense a snake pill. Can that simulate the soul beast condense the soul core, and also compress the soul power into a core? ”

"You mean......" Dugu Bo's eyes suddenly burst into a burst of light.

"Humanity's soul core?!"

Dugu Bo's mind seemed to explode with a bright light.

In order to give a reasonable explanation for the one, two, and third parts, the sudden increase in titles, and round out the soul core theory.

I almost didn't want to break my head.

(End of chapter)