The lake is like a funnel, with the deepest place in the center, and the air-conditioning clothes on her can't change the water pressure.

Zi Xu feels a little strenuous, she has exceeded the 100 meters depth limit for professional divers.

Tian Tian said: "It's still deep below, let's go back first."

Zi Xu nodded. The place here can only be illuminated by Ye Mingzhu, and nothing can be seen. They are all ordinary sea creatures.

She turned her body and moved upstream, but did not see a flash of light underwater.

She just floated about two meters up, and a lot of bubbles emerged from the water. Before she could react, her waist tightened and something caught her.

She lowered her head and saw a tentacle wrapped around her body. She took out a short knife to slash but was knocked off by another tentacle.

Then a huge pulling force pulled her into the abyss.

Fortunately, the tentacles wrapped her whole body, otherwise the water pressure alone could kill her.

I don't know how long it took, Zi Xu fell to the ground.

The Ye Mingzhu on her waist can only illuminate a small circle around her. It is obvious that she has now entered a cave with no water on the bottom of the sea.

Tian Tian said: "Last time I changed some big Ye Mingzhu, you can use it."

Zi Xu quickly found the big Ye Mingzhu and took it out to expand his vision.

There is a huge octopus lying in the distance, it is rolling violently, it seems to be very painful.

Zi Xu walked closer and saw his short knife poking the octopus's head. The octopus's tentacles were thicker and he could get the short knife out.

"Should I go to make up the knife?"

Tian Tian said: "Now I don't know how many meters it has dived. If you make a knife and kill it, you may not be able to go back."

Zi Xu hesitated, the octopus actually found her, rolled her up and placed it on his head.

"It wants me to help?"

Tian Tian said: "It seems to be, it may be the last fight, are you afraid that you will kill it directly?"

Zi Xu: "..." Does octopus have such a high IQ?

No matter what, Zi Xu went to put the knife away.

The octopus settled down.

Zi Xu was hesitating whether to communicate with the octopus. The octopus used its tentacles to pull the big night pearl on the ground, seemingly interested in it.

She took the opportunity to look at the cave.

Behind the lake is a high mountain with cliffs, are they inside that mountain?

Now I can’t manage that much, I must find a way.

She was not stupid enough to really go to discuss with the octopus.

Tian Tian is also helpless now.

Seeing the octopus picking up and pulling Ye Mingzhu to play, Zi Xu took the opportunity to walk deep into the cave.

It is relatively humid here, with flowing water on the ground, flowing into the pool where the octopus comes out.

Tian Tian said: "This water seems to be fresh water."

Zi Xu took a look and tasted it again: "It's fresh water."

"Walk along the water and take a look."

"it is good!"

Zixu walked along the current, and the wider the current became.

She felt that this little fresh water was not enough to make the water in that lake evolve into fresh water.

Tian Tian laughed suddenly.

Zi Xu was taken aback: "What's your nerve?"

Tian Tian said: "I just remembered one thing, this water is rich in minerals, but it is the natural mineral water that our time dreamed of."

Zi Xu curled his lips: "If it hadn't created so much pollution, all fresh water would be natural mineral water."

"That's right, but human progress will inevitably cause pollution."

Zi Xu shook his head: "It's still not good at environmental protection. If you are aware of environmental protection at the beginning, you won't be crazy when you find it."

Tian Tian smiled and said: "Who makes mankind always covet the present enjoyment? As a result, it harms future generations."

Zi Xu was speechless and couldn't refute this.

If one day she can grasp higher rights, she must vigorously promote environmental protection issues.

In fact, she has been doing this all the time. For example, logging in mountain forests always has to replant corresponding saplings.

I only hope that future generations can inherit it.

The road got narrower and narrower, and finally saw a circular hole, from where the water flows.

Zixu got in, the hole went up diagonally.

If you climb out, will you show up somewhere on the mountain?

She couldn't care too much, and kept going up.

Fortunately, with the shoes I changed before, I can walk steadily on slippery ground.

At the back, the passage was already straight up and down, and she could only use her limbs to prop up the cave wall.

It's just that there is the impact of water, and it is very difficult to walk.

When she reached the top, she did not see the way out, but came to a new cave.

She continued to walk along the stream.

There are a lot of stalactites in the cave, as if it was raining inside.

This amount of water gradually changed from drizzle to heavy rain.

Zi Xu could only continue to move forward under pressure.

She didn't know how long she had been walking, she finally saw the long-lost sunshine.

It was a hole with a big mouth, she used a **** to cut a hole and went out.

Outside is a valley with a big waterfall, one branch of the waterfall flows to the cave over there.

At the bottom of the canyon is a waterhole, and a silvery thing is stuck on the cliff above.

"Wow...Could it be that you met a UFO?"

Tian Tian said, "I'll go up and take a look." It entered the ferret puppet, whizzing and climbing up.

Zixu looked at the cliff and changed his shoes to climb.

Only when she came to the silver object did she know how big it was.

It was the size of the Palace of the Capital of Beijing, without windows on the outside, but there was a hole from which water came out.

Zi Xu got in from the edge of the hole, it was dark inside.

After finding the water source, she sighed: "So advanced technology can produce a steady stream of fresh water."

Tian Tian ran over and said, "The shark over there has spoken."

"Say what?"

"They want to look at this thing and exchange it with scales."

"Yes." She wants to explore here anyway.

As Zi Xu inspected the fresh water machine, a shark said, "Isn't this the bad guy who turns sea water into fresh water?"

"Yes, the sea water here is changed to fresh water because of this stuff."

"It's a pity that we can't destroy it."

"Damn things."

Zi Xu thought: "Tada, can you let them use this kind of thing as an exchange?"

Tian Tian asked: "What do you want this to do?"

"If you can make fresh water, you can put it in those desertified areas!"

"Oh, let me ask."

Soon, Tian Tian replied: "They want it, but I negotiated the conditions, that is, they need to compensate with their valuable things."

"Compensation? What compensation?"

"It's reward, we are to help them, right?"

Zi Xu nodded: "Good job." Tian Tian is worthy of a profiteer.

As for the transaction, Zi Xu didn't care about it. She didn't understand the thing that made fresh water.

Explored inside for a while and found some information.

After translation, Zi Xu probably understood the original intention of making this thing.