About seven kilometers from the Gaoqi volcano, Chen Jing stopped by a pond.

There are actually many ponds in the forests around the volcano.

Most ponds are no more than three metres deep, and the deepest lakes are just over eight metres.

But the pond in front of me, which is only 5 meters in diameter, is more than 20 meters deep!

And there is a rift in the deepest part.

Fortunately, Chen Jing was very meticulous in his detection of each pond, otherwise he would have missed it.

This pond arose as a result of geological activity.

Its rift leads to an underground river.

However, the width of the rift did not allow Chen Jing to pass through.

But Chen Jing still decided to dive down first to find out, after all, when he reached the crack of the underground river, the bioradar could not detect the situation on the other side.

The water in the pond is cold, and it is not the underground hot spring that you might expect.

The bottom of the water is clear, but there are no aquatic species here.

Since he had never tried diving at this depth, Chen Jing climbed all the way down by clutching the bare gravel at the bottom of the water.

The pond created by this geological activity was not easy to descend, and when it reached a depth of 15 meters, Chen Jing found that he could not go down.

It's getting narrower and narrower.

Forcing a dive will get you stuck.

But bioradar is already able to detect much more information.

The breadth of the underground river exceeded Chen Jing's imagination.

The width is more than 15 meters, while the length can only detect about 200 meters.

"I won't find anything strange, will I?" Chen Jing was secretly frightened.

The ridiculously active geological activity of the Ganges continent has created many strange scenes, and no one knows how many underground rivers there are.

No one knows where it leads.

Chen Jing saw this kind of natural scene for the first time in his two lives, and he was naturally shocked.

And better news is shown in the bioradar.

The connection between this pond and the underground river is not at the top of the underground river, but at the bottom.

In other words, in fact, Chen Jing's side was already an underground dark river.

But the hard earth and rocks blocked the further progress.

After staying underwater for a long time, Chen Jing did not rise until he felt a little hypoxic.

"55 minutes. The time to stand still underwater is 55 minutes. Chen Jing looked at the time on the system and determined his plan.

That's chisel it!

He had a strong feeling.

There's something you want in this underground river.

However, before excavating, Chen Jing decided to search all around.

What if there was an easier way to get in?

After three days of searching, Chen Jing was disappointed.

Except for the rift in the pool, there was no other way into the underground river.

After finding a lot of iron tools from the town and building a simple hut by the pond, Chen Jing was ready to stay here.

When he was hungry, he went to find the oryx, and when he was thirsty, he went to the surrounding ponds to drink.

Chen Jing had no intention of drinking his own bath water.

The best way to open the passage to the underground river is to expand the rift.

After all, it only needs to chisel the cracked earth and rock around it.

The strength of this body is already great, even in the water, Chen Jing can still play very well.

The clatter of chiseling continued in the water.

It only took Chen Jing one day to chisel the last five meters of passage to only four meters.

However, the further down you go, the more difficult it becomes. Because there is more rock to be chiseled, it takes longer.

This is nothing to Chen Jing.

He has a lot of time.

And the closer he got to that rift, the stronger Chen Jing's feelings in his heart became.

He didn't know if it was a psychological factor or what, but he always had a feeling that as long as he entered the underground river, he would find something.

However, in the range that bioradar can detect, there is nothing.

Time flies.

Chen Jing came to Qixing for two months.

The stone was chiseled for half a month.

Those who don't know think they crossed over to be miners.

It's only been a matter of one or two days since the underground dark river rift was opened.

Chen Jing sometimes wished that he would be thinner, so that he would have been able to pass it a long time ago.

Shore.

Inside the wooden house are some mats moved from the town.

Outside the wooden house, there was a giant antelope bound by a thick hemp rope. This is to better assist himself in digging the pit, Chen Jing specially caught it.

Tie a hemp rope around his waist, take out the remaining awl and chisel, and Chen Jing walked to the edge of the pond.

In the past six months, Chen Jing has spent at least 12 hours in the pond every day.

The same may be true today.

Skillfully dive underwater.

In so many days, Chen Jing's water quality has improved a lot.

The reason why the final crack is difficult to dig is nothing more than not finding the right point of focus.

Chen Jing could only put his head down and feet, put his hand into the crack, and used the bioradar to determine the part of his chiseling.

The small space, handstands, and stone chiseling, the three factors combined made Chen Jing have to leave after staying underwater for less than half an hour every time.

And this is when he has evolved his lungs again.

Under normal conditions, Chen Jing can now stay in the water for an hour and a half.

Imagine that you are now in a space that matches the width of your body.

Just imagining it, most people feel like they're suffocating.

Being in a small space, psychological uneasiness is the main reason why Chen Jing can only stay for such a short time.

After pulling the rope straight with your feet, the iron sheet on the shore will sound, and the antelope that hears the sound obediently begins to pull the rope.

In this way, Chen Jing can quickly come out of this small place.

This is also the method that Chen Jing came up with after retreating for ten minutes.

Oryx is also surprisingly tame.

Every time he came up, even if the oxygen was stored, Chen Jing would take a while to get rid of that feeling of uneasiness.

Touching the head of the reserve grain, Chen Jing named the giant antelope the reserve grain.

Set the pull device back up and launch again.

The closer he got to the underground river, the wider the range that Chen Jing could detect.

The detection capability of underwater bioradar has been weakened, but it is still at least 500 meters away.

From the point of the breach, there is no living creature for 500 meters in front and behind.

Some only have water.

The direction of the water flow is from left to right, because the direction of Gaoqi Volcano is on the right, so Chen Jing will go downstream to have a look first.

The clattering chisel spread far away in the water, but no creature came here to meet Chen Jing for this reason.

The last time I was pulled up, it was already night.

After seeing Chen Jing enter the cabin, he lay down quietly and fell asleep.

In order to protect the safety of the grain reserves, Chen Jing surrounded the head of a saber-toothed wolf around it.

However, it may also be one of the reasons why the reserve grain does not dare to run away.

Following.

At the beginning of the morning sun, Chen Jing went into the water.

When the last rock was broken, Chen Jing couldn't wait to probe himself into the underground river.

The coldness of the river caught Chen Jing off guard.

However, what caught him off guard was that because Chen Jing entered the upper half of his body and entered the underground dark river, the rope around his waist was straightened.

Hearing the collision of the iron sheets, the reserve grain began to pull him, and forced Chen Jing back.

Looking at the ignorant eyes of the reserve grain, Chen Jing was stunned and didn't know what to say.

But he just wanted to say it, and he couldn't say it.

Eventually, after hanging the heads of the two saber-toothed wolves on the horns of the reserve grain, Chen Jing untied the ropes on its body.

"Let's go!"

Patting the head of the grain reserve, Chen Jing turned around and entered the waterhole.

The reserve waited for a long time in place, but no more iron sheets were heard.

Spring goes and autumn comes.

In the spring of the following year, a herd of giant antelopes came by the waterhole.

On the head of the giant antelope led by him, there are two heads that are already white bones.