"Coco, you are waiting for me by the lake, I'll go down and take a look."

"Yeah!" Coco responded, jumped off his shoulder, and lay on a rock by the lake.

The lake water was very calm at this time. The breeze blew, and faint ripples appeared on the lake surface.

There are no more fish swimming in the lake. Even the original lotus, lotus, reeds and other plants by the lake have withered at this time, and the entire lake has shown an extremely bleak scene.

I don’t know if this lake will be frozen directly tomorrow.

The lake water is very clear. Xu Xin looked at the center of the lake. The bottomless heart of the lake is still pitch black, like a dead lake. It makes people feel frightened when they look at it.

Xu Xin took out a water plant (blue), ate it and gained the ability to breathe underwater, and ate the red currant big (blue) that allows him to see things clearly in the dark, took a deep breath, and plunged into the lake.

The cold lake water instantly soaked his whole body, causing him to tremble.

The lake is so cold! It's almost zero!

The scale cover was not a sealed suit. Water drilled in through the gaps in the scale cover, making his whole body feel cold.

So cold!

The scale suit cannot stop the cold in the water!

This has to speed up! Otherwise, the temperature will not take long before his hands and feet will become numb.

Xu Xin opened her eyes and looked at the scene in the shallow water area.

There was actually no fish in this lake, and even ordinary aquatic plants disappeared at the bottom of the lake, leaving only the gravel and gravel covering the bottom of the lake.

Compared with the previous lakes, the lakes at this time really make people feel extremely desolate.

Without stopping, Xu Xin continued to swim towards the center of the lake.

Soon, a few seconds later, he reached the edge of the huge cave in the middle of the lake.

Huh?

Xu Xin noticed something was wrong.

How did the bottomless hole in the middle of the lake feel... expanded a little?

The last time he went down the lake, the edge of the deep pit at the bottom of the lake suddenly dropped, which was about thirty meters away from the lake, which means that the shallow water area was about thirty meters.

But now...

Looking at the huge pit in the middle of the lake that suddenly appeared in front of him, Xu Xin turned around and looked behind him.

It is only twenty meters away from the shore at most... no, less than twenty meters!

...The huge cave in the middle of the lake will expand by itself?!

Xu Xin's heart suddenly tightened.

What's the situation?

After experiencing the Giant Skull Salt Mining incident, he was very sensitive to this terrain that could be changed by himself.

Isn't this huge hole alive?

The mouth of the beast?

Oh my god... I'm a little afraid to get off...

No, no, no...it should be impossible...

This is just a hole. Judging from the appearance, it is completely unrelated to the mouth and is completely different from the giant's head.

but……

Xu Xin pursed her lips. This lake is really dangerous.

Although he chose to plant a tree house here, although it brought him a lot of convenience, the dangers came one after another.

If this huge hole can really continue to expand...

His tree house is only less than two hundred meters away from the lake, very close. If there is a problem with this lake, his tree house will probably be difficult to escape.

Could it be that he remembered it wrong?

No, the distance has definitely become shorter, and the huge hole has indeed expanded!

Forget it, don’t care about this for now. After finishing what you want to do, Coco said there is no danger in the cave, and Xu Xin still believes it very much.

He looked at this abyss hole intently.

At a depth of about twenty meters from the water surface, the blue-grade aquatic plants grew out again and fluttered with the water flow on the cave wall.

From the direction of blowing grass, we can see that the water in the giant cave in the middle of the lake rotates slowly in a clockwise direction, like a huge vortex.

However, because the speed is slow, if there is no movement of the aquatic plants, the water is flowing with the naked eye.

At a depth of about 40 meters, the ores that appear dark green as a whole are still on the cave walls.

However, unlike last time, the strange and aggressive big fish that had wandered at a depth of fifty or sixty meters before were nowhere to be seen and completely disappeared.

The blue-grade fish bladders he ate were obtained from this fish, which also allowed him to gain stronger resistance to water pressure, so he can now dig down those green metal ores.

Xu Xin carefully observed the rock wall below. He was afraid that these fish that were very similar to the surrounding rock wall were sticking to the cave wall at this time and blending into one with the cave wall, so he did not find it.

After observing for a long time, he truly confirmed that there was no such big fish in the hole at this time.

After confirming that there was no danger in the hole, Xu Xin continued to sink slowly, reached a depth of about twenty meters, and harvested blue-grade aquatic plants again. This time he obtained fourteen plants and enriched the inventory.

Continue to sink, and soon Xu Xin is approaching the green ores.

Most of these ores are green, with only a few scattered rays of blue.

Xu Xin had already felt an abnormality in his body. His body and ears could not stand the water pressure here.

Forty meters...

This is probably his limit.

Compared to the Qin Yunlong brothers who could dive to below 100 meters deep for exploration a long time ago, his diving ability is really urgent.

But it's enough, at least these ores can be collected.

After they were connected with the other side, the bottomless underwater giant cave was left to the two of them to explore.

Xu Xin looked down. The dark abyss and the bottomless depths of the water made him chill and quickly looked away.

Scary!

This is really going to have deep-sea phobia.

He swam to the edge of the rock wall, stretched out his hand to the green ore, and touched the ore.

[Copper ore (green): Metal ore can be melted into copper blocks by furnace. It has extremely strong electrical conductivity and is the basic material for making electrical appliances.]

really!

Here comes!

Copper ore!

His guess is correct! It's copper ore!

Copper ore that can make electrical appliances!

It turned out that the copper ore was hidden in such a deep place. No wonder Li Wenxi found the gold mine, but could not find the copper ore.

It turns out that the copper ore is in deep water!

However... the brothers Qin Yunlong and Qin Yunhu did not seem to have found the copper mine.

Could it be that he is the only one here?

Forget it, don’t consider these first, collect these copper ores first!

Xu Xin took out the prospector's steel pickaxe, and Li Wenxi gave him her last time.

Xu Xin kept holding the rock wall and fixed it, and waved the steel pick with his other hand and chiseled it towards the ore underwater.

"Crack!" The steel pick was chiseled on the ore, but the ore did not change much.

The resistance in the water is very large, which greatly weakens the power of the pick.

Xu Xin could only wave the pickaxe again and again, and finally smashed a piece of ore.

"Click!"

A whole piece of ore cracked into five [copper ore]. Xu Xin immediately collected it quickly, but in the end he still let a piece of copper ore fall into the bottomless abyss.

"This..." Xu Xin felt a little uncomfortable. One of them actually fell down.

There is no good idea underwater, so he can only try his best to collect it.

"Click!"

"Click!"

No copper ore fell down these times, and Xu Xin collected the copper ore on the rock wall as fast as possible.

"Click!"
To be continued...