In the narrow passage, Feng Yi became a mimetic and continued to climb forward with difficulty.

The good thing is that the hole wasn't always that narrow.

It's just that there are a few places that are extraordinarily narrow, and there is a narrow opening every other section.

It's like a level.

After passing a narrow level, the cave will be slightly more spacious, enough for two or three Feng Yi bodies to walk side by side.

If given a choice, Feng Yi did not want to physically destroy this place.

If it hadn't been directly stuck, he wouldn't have resorted to violence.

Therefore, even if encountering a narrow mouth, the difficulty of moving forward increases, and Feng Yi did not use brute force to expand the diameter of the hole.

It seems like no one has walked through here for a long, long time.

Should not be ah.

Could it be that the elders in the past have never been here?

Grandma didn't come?

Feng Yi thought about it, and while crawling forward, he felt the breath in the cave.

The groundwater flow brought odors of life and non-living, but there was no sign of any long-term living in the cave.

It was, so to speak, dead silence.

Feng Yi recalled carefully that there were no aquatic animals or plants at the entrance of this passage and that area, as if all creatures deliberately avoided this area.

In the cave, the surface stone of the cave wall is slightly different from the inner layer.

Perhaps because of this, it is possible to protect the place without much change for thousands of years, no obvious erosion, and no invasion of foreign organisms.

Feng Yi himself could not feel any danger, but he guessed that the surface stone of the cave might contain some kind of "expulsion" information.

"On the return trip, take some samples and take them back to Xiao Wu for analysis." Feng Yi said in his heart.

This passage is very long, but it is not a straight line, nor does it lead to the top, but meanders down and goes deeper into the ground.

After a long time of underwater diving, the water temperature is also low. For ordinary people, if there are not enough protective measures and emergency equipment, there is no way to explore.

Therefore, even if someone has discovered this place, it is extremely difficult to continue to look inside.

The cave was completely dark, which did not cause any disturbance to Feng Yi. He could perceive the situation in the cave.

Swim a section, climb a level, swim a section, and pass a level...

Finally came out of the not spacious cave, facing a larger underwater space.

It should also be within the mountain, and there are still stone walls around, but the space is larger.

If instinct is not wrong, there should be a…

Feng Yi did not rush to investigate the surroundings, but swam upwards.

wow-

Feng Yi emerges from the water, breathing fresh air

It was still dark all around, utter darkness.

But the air here carries the smell of the forest outside the mountain.

Apparently, there are hidden vents, and more than one.

The upper cave wall is also a long way from the water surface. Even if there are some unexpected water rises, there is still room to breathe.

Originally Feng Yi still thought, if there is no room for ventilation, then he will exit the same way.

His ability to sneak underwater is enough to ensure that he can return safely. Go out for a breath, put on your ventilation gear and come back. With one breath he can dive underwater for a long time.

But now it seems that there is no need to return.

Float up when you want to breathe.

It is indeed a very safe place, no alien creatures to disturb.

Easy to defend and difficult to attack.

Not necessarily where the ancestors lived, maybe just a sanctuary?

It's just that Feng Yi didn't understand, why did they open the passage so narrow?

Could it be that, a long time ago, the ancestors were actually not tall?

miniature?

Feng Yi thought of some primitive man models about one meter tall in the museum.

Be aware of the situation around you.

It is like a spacious underground tunnel, connected to it by the narrow passage that Feng Yi came in.

Continuing forward, not too far away, Feng Yi saw another passage with a larger diameter on the side wall of the cave.

Compared to the narrow passage that he struggled to wriggle in, the one in front of him was the same as the widened and taller double-opening door.

Walking in and taking a closer look, it can be seen that there are some claw marks on the wall of the cave, which have been left in recent decades.

Grandma caught it?

Feng Yi inspected a section from this side "gate", even in the narrowest position inside, it wouldn't get stuck at all!

Exactly what he thought.

My aunt must have been here, more than once.

So, the aunt came in through this "gate"? !

So what is the channel I came in through? Dog hole?

Feng Yi swam back and looked at the passage he entered.

A comparison, he couldn't help but patted his forehead.

Instinct...

Is there a possibility that you are looking for a special channel for cubs? !

Feng Yi reflected.

What is the criterion for instinct to find this cub channel?

Sure enough, instinct is something that can be believed, but not completely.

Now is not the time to struggle with this, Feng Yi put it aside.

Anyway, I did find a place.

Although the "door" to come in is not very suitable.

After swimming around in this spacious underwater cave, Feng Yi found that there are more than one entrances, some large and small, but in general, the larger ones have more passages.

The layout here is like a centipede, the main part is long and spacious, and the upper floor is ventilated.

The "limb" part of the "centipede" is the large and small passage leading to the outside.

Like the narrow passage that came in, the stone on the surface of the main stone wall is like a protective shell, preventing the attachment of aquatic animals and plants, as well as the invasion of microorganisms and corrosive substances.

The water here is in circulation with the water outside. Even if the flow rate is not fast, it means that the water here is living water, and there is no strong smell of decay.

It is precisely because it is in circulation that there is a layer of sediment at the bottom of the cave.

If you walk on the bottom of the water, it will cause local turbidity. choking enough.

Therefore, Feng Yi is swimming in the middle layer underwater.

prototype used.

There is enough space, and Feng Yi prefers to use the prototype here.

Continue forward from the "centipede"-shaped passage to the "head" part.

It looks like a deep pool with no bottom, but Feng Yi did not explore down, but went vertically upstream from this position.

call-

He popped his head out of the water, stretched out his hand and stroked his wet hair back, wiggled his tail, and walked over to the side.

Here, is a cave located within the mountain.

formed unnaturally.

There is no smell of dissolution.

Thousands of years have passed, but not much has changed.

Here, is a "nest".

It is where the ancestors lived.

Apart from the water in the deep pool, the rest of the cave is drier and has hidden ventilation holes.

If ordinary people are here, they can survive, but they will not feel comfortable.

There is pool water, and the air humidity is higher.

For ordinary people, the humidity is too high, but it is just right for Feng Yi.

The big, heavy tail crawls in the hole, the scales swishing on the ground.

There are gravel on the ground, I don't know if it was broken by my aunt or left by my seniors from a long time ago.

Feng Yi picked up a fist-sized stone, threw it into the air, and then grabbed the tip of his tail and slammed it like a baseball.

boom!

The stone was knocked out, hit the wall of the cave further ahead, and fell to the ground.

The stone is slightly harder, so take it back for research.

Feeling the slight vibration of the ground, Feng Yi slipped around in the cave.

There is no direct access to the outside, I don't know if it was not there in the first place, or it was blocked later.

In the cave, even if a hundred people gather here, it will not appear crowded.

Suitable for evacuation, UU reading www. uukanshu.com rally, also suitable for hibernation.

Or is it a special place for molting?

After all, the movement is a bit loud when molting, and it is necessary to prevent external interference. This place is just fine.

However, the physique of the ancestors should not be too weak, right?

Feng Yi yawned, crossed his tail, and lay on it.

Finding this place is too exhausting and exhausting, so take a nap first.

I don't know if sleeping here, will the ancestors dream?

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