Recently, Chen Yuan discovered a good way to dig a hole, that is, to let the space formed by the spatial will of the ancestral land of the vine clan collect the soil in front of it, Chen Yuan walked forward, and then put the soil in the space behind, and then collected the soil in front of him, and so on, much faster than Chen Yuan doing it himself!

However, this method can only be done with the space formed by the will of space, and other storage equipment can't do it, otherwise the efficiency of digging a hole with the saber-toothed tiger's tiger tooth space is hundreds of times faster than now!

The space formed by the will of space is only ten cubic meters, and it can only advance less than five meters each time, and this is because this space is circular and not square, otherwise it would not be possible to have five meters every time!

But it's already very good, at least it's a lot faster and easier than doing it yourself1

The consumption of space in this way is very small, at least Chen Yuan thinks that he will definitely be fine if he uses it one or two thousand times.

The underground secret base of the Chaozhi Academy is definitely impossible to penetrate thousands of meters!

Chen Yuan dug down five or six times before he found something different.

"This soil is a bit like digging a spirit stone mine!" Chen Yuan muttered.

After digging the underground of Black Tooth City a few times, Chen Yuan could already roughly judge the soil quality around the spirit stone mine!

After digging twice, sure enough, there was only a thin layer of stone skin in front of him blocking the fluorescence of the spirit stone, and at the same time, the rich spirit stone energy turned this ten-cube space into an energy pool.

Fortunately, it's just a low-grade spirit stone mine, otherwise Chen Yuan won't be able to withstand the erosion of energy!

Chen Yuan took a refreshing breath: "Compared with the haze that I had absorbed for more than 20 years in my previous life, the environment here is simply a fairyland! What kind of natural oxygen? The air in the deep mountains and old forests is not as good as the air here!"

Although it was not the first time he had encountered this kind of environment, Chen Yuan was still very satisfied, one day of cultivation in this kind of place was worth a month outside!

It's no secret that there is a huge spiritual stone mine underneath the Chaozhi Courtyard!

If there is no mine under the gathering place of any ethnic group in the Great Wilderness, they are embarrassed to go out, and the human race is relatively stumbling, and there is no small spirit stone mine, so they can only be exploited by the Great Wilderness Beast Clan!

Chen Yuan knew that now was not the time to cultivate, so he hurriedly scraped off the last layer of stone skin with a sapper shovel, revealing the crystal spirit stone inside.

He took a deep breath and put his hand on the spirit stone and said silently: "Keep cutting!"

The space in the center of the eyebrows was activated, and soon a ten-cubic space was dug out, Chen Yuan stepped forward and turned around, pouring out the ten cubic spirit stones in the space, this time he did not ignore them, but used the tiger tooth space to install all these spirit stones.

There are still thousands of teachers and students in Jiangnan Wuhan University waiting to be fed, and these spirit stones cannot be wasted!

Chen Yuan's current task is to dig out a passage to enter the secret base of the Chaozhi Academy, so the job of digging spirit stones can only be carried out by the way!

After digging forward for more than twenty meters, when Chen Yuan shrouded the space again, he could already feel that there was a space in front of him, and Chen Yuan knew that this was the base of the Super Intelligence Academy!

Suppressing the excitement in his heart, Chen Yuan dug half of the spirit stone in front of him, leaving half for cover-up.

At the same time, turn on the detection function of the system, and use all the detection functions like that space.

Suddenly, a huge space was imprinted into Chen Yuan's heart, this was probably a research room, which was full of various instruments, it looked a bit like a human chemistry laboratory, and there were more than a dozen heads with chiseled teeth with both arms and teeth wearing a white coat doing different things!

This laboratory should not be very important, these arm chisels are all ordinary chisels, and the breath on their bodies is around the military level, and there is no strong aura waiting outside.

However, there are too many chisel teeth here, and Chen Yuan is not easy to start.

He continued to dig holes along the lab, hoping to be lucky enough to run into a lone chisel.

Fortunately, what he dug the hole was only to convert the spirit stone in two spaces, otherwise it would be easy to attract the attention of the strong people inside if he made a little sound!

Finally, the hard work paid off, and Chen Yuan saw a pair of arms chiseled teeth resting in a place that had been obviously converted into a bedroom, and it looked like he was not feeling well.

Chen Yuan dug a hole to the side of the bed, this bed is about the same size as a human bed, in fact, the arms and chiseled teeth of the Chaozhi Institute are already very close to humans!

Chen Yuan felt it again, and determined that this double-arm chisel was just an ordinary double-arm chisel, not the legendary emperor-level chisel, and his heart had already let go of most of it.

When the chisel tooth reaches the emperor level, it will metamorphose, and it will transform into a chisel tooth with only two arms, everything is very similar to the chisel tooth that was born with two arms, so Chen Yuan must confirm that it is removed!

Chen Yuan quietly dug up the last spirit stone and gently walked in front of this chiseled tooth!

Just as Chen Yuan was about to make a move, this chisel suddenly opened its eyes, and when it saw Chen Yuan, it was first confused, and then shocked: "Human?!"

Chen Yuan hurriedly stepped forward to cover the mouth of this chisel-toothed one, and a long sword appeared in his hand, piercing the heart of this chisel-toothed one without a trace of hesitation.

Then the chisel tooth turned into a pile of ash, and Chen Yuan's body twisted for a while, and soon it became the appearance of this two-arm chisel tooth. Chen Yuan moved his hands and feet and said, "The system instills the memory of this chisel tooth!"

With the experience of being instilled with memories several times, Chen Yuan was ready.

However, this time it ended quickly, and Chen Yuan did not feel any discomfort.

"Why is it so fast this time?"

"This chisel has only lived for more than 50 years, and life is very simple, and there are not many memories in your head, so you can accept it quickly!"

Chen Yuan: "I see!"

This world is fair, the two-arm chisel teeth are naturally smarter than other chisel teeth, but the cultivation talent is not high, the cultivation of the chisel teeth of the Chaozhi Academy is generally very low, and their lifespan is naturally not long, and the chisel teeth that have not reached the waiting level only have a lifespan of two hundred!

Therefore, the chisel tooth in his fifties is already considered to be old, and Chen Yuan was a little surprised and hurried to check the memory of this chisel tooth. Because a fifty-year-old with chiseled teeth in his arms must have held an important position in the Super Intelligence Academy.

Sure enough, from the memory of this chisel tooth, Chen Yuan found that this chisel tooth was really in charge of a research study on the intellectual development of ordinary chisel teeth, it was the person in charge of this research room, and there were more than a dozen young two-armed chisel teeth as assistants, and it happened to be a little unwell tonight, so after ordering the assistant to do some work, he returned to this room to rest!

In addition, Chen Yuan knew from its memory that the underground base of the Chaozhi Academy had more than a dozen floors, and it was only the second layer here, and the things it studied were not important, and the defense was not strict, and the more it understood, the tighter the defense.

The bottom layer has the biggest secret of the chisel tooth clan, it is not as simple as a simple laboratory, where has it been developed into a huge military fortress, and none of the chisel teeth living in it are below the king level, and there are as many as three thousand such chisel teeth, not to mention that there are many emperor chisel teeth, and even the emperor level has more than one.

This arm is not of high enough level, it doesn't know what secrets are hidden there!

Not only that, but each layer of more than ten hides the huge secrets of the Chisel Tooth Clan, some are important things to study, some are the secrets that the Chisel Tooth Clan originally has, and some are the treasures that the Chisel Tooth Clan has collected over the years!

Chen Yuan specially searched for something about the research on the destruction of human viruses, and it happened that this chisel knew that this research was not a very important research here, it was only at the fifth level, and it was already possible to go there at the level of this chisel.

But it's generally fine, and these chisels don't just step into other research areas, unless they have a particularly good relationship!

And it just so happens that this chisel is not familiar with all the chisel teeth in the research room where the human virus is studied, but this is not difficult for Chen Yuan, and he can go over with an excuse!

However, the guards on the fifth floor are much stricter than the guards here, and it is not easy for Chen Yuan to make small moves there!

In addition, what made Chen Yuan feel some value was the topographic map of the first few layers of the base in this chisel brain, from these topographic maps, Chen Yuan found that it was simply unrealistic for him to want to detonate the spirit stone here and blow up this base.

Because, each research room here is separated separately, and there is a space distance of several hundred meters between each research room, and all the spirit stones in this space have been hollowed out and filled with a very hard rock.

Not only that, but it's also the same from layer to floor, and even the entire underground of Silvertooth City!

Except for some extremely important and well-defended places, the Spirit Stone Mine still maintains its original appearance!

In this kind of place, it is no longer possible for Chen Yuan to go in and make trouble!

Chen Yuan, who had turned into a chisel with his arms, sat on the edge of the bed and thought for a while, then got up and prepared to go to the fifth floor to see if there was a chance to destroy the research room, which was Chen Yuan's biggest goal this time!

Chen Yuan was glad as he walked, the Silver Tooth Kingdom didn't attach much importance to this kind of research, otherwise he wouldn't have placed this kind of song laboratory on the fifth layer! However, Chen Yuan was also puzzled, even this kind of research on destroying the old enemy could only be placed on the fifth layer, and what secrets were hidden in the dozen or so layers below?

There is also the silver-toothed Meng Lang's heaven-level exercises, which layer is the Biyue Killing Divine Technique placed on?

At that time, Chen Yuan saw the chisel tooth on the road to Silver Tooth City, and after knowing about the Silver Tooth Meng Lang plan, he realized that he could do things, so he didn't absorb the chisel tooth, and he didn't get the relevant memory, otherwise there would be no need to worry about it!

Chen Yuan encountered several waves of patrolling chisels along the way, but fortunately, after accepting the memory of this two-arm chisel tooth, Chen Yuan could not show any flaws again.

Along the way, he took the identity certificate of this chisel tooth to the fifth floor, there are three important research rooms here, the most hidden one of which is the one that studies viruses, Chen Yuan came to the door of this research room with ease.

The research room here is different from the second floor, and the entrance is already a waiting pinnacle chisel to guard the door.

"Stop, what is your identity, what are you doing here?" a guard stepped forward to stop Chen Yuan.

Chen Yuan stopped, took out his identity certificate and said: "I am the second layer, the person in charge of the fifth research room, Linya understands, I came here to visit Linya City to have research things to communicate!"