staring at Zhao Fei deadly, Doudou silently retreated quickly. Just kidding! I'm a terrestrial monster. It's okay to paddle yourself, but let yourself dive...... Hehe......

However, after not running a few steps, Doudou found that he had already taken off.

"Hmph, I knew you would react like this. ”

Picking up Doudou, Zhao Fei sneered. Regarding Doudou's reaction, Zhao Fei had already predicted and prepared in advance. No, I really caught Doudou who wanted to escape.

"Meow!(Senior, you're joking, you must be joking!)"

Doudou struggled slightly, and found that he couldn't break free at all, as if he accepted his fate, he didn't struggle anymore, he just wanted Zhao Fei to change his mind.

"Do you think it's possible?"

Zhao Fei smiled slightly, revealing his terrifying eight teeth.

"Go down, I'll be with you, too. ”

After the joke, Zhao Fei threw Doudou into the water and jumped down with him.

"Puff", "Puff".

With two splashes, one large and one small, Zhao Fei and Doudou disappeared under the lake.

This time, Zhao Fei was much more experienced than the previous time. In the midst of the noise, tools were prepared in advance to help breathe underwater. Now, entering the water, he and Doudou are one beast. However, the tools are too simple, and Zhao Fei also knows that once he goes deeper, he can only rely on himself to hold his breath.

Although Doudou was reluctant before, after all, he was not very suitable for underwater actions. But now that it's down, Doudou is still diving as hard as he can. For it, since the seniors have a request, let's try to help.

[The more you dive, the more you feel wrong.] This mirror lake is so big, there is no reason for a little time at that time. That's it. 】

Silently diving deeper, Zhao Fei also compared with the previous experience. And yet he found out. Sure enough, that dive was indeed a bit too hasty!

The further you dive down, the more pressure you have, and the more oxygen and energy you consume. Soon, not only Doudou, but even Zhao Fei began to feel a little powerless.

[Sure enough, compared to the last time, the time to find the passage last time was too short. Maybe that's not the bottom. It's a space inside a rock near the shore. 】

Looking at Doudou, Zhao Fei took it and swam towards the water. Now that you've determined that the lake is deeper than you think, it's time to go up and plan again.

"The lake is really deep enough that we need to explore it a few more times and find something out of the ordinary, so be sure to let me know. ”

Back on the shore, Zhao Fei commanded Doudou. Since the last time we probed the bottom, the bottom must be deeper. So. The time you need to explore will be longer, the depth will be greater, and the time and energy will be more expended, so explore the situation first. After you are sure, you will dive down again!

"You go down here against the shore and explore, and I'll try to see if I can get some tools." ”

Zhao Fei thought about it. Diving, especially deep water. It is not possible to do without an adequate supply of oxygen. You may not be able to make an oxygen cylinder yourself, but you can get an air cylinder or something. You can try.

The key to oxygen cylinders is compressed air. Since the mana can be compressed, there's no reason why the air can't be compressed! Anyway, it's not like you're going to dive underwater right away, and there's plenty of time to solve these problems.

Zhao Fei began to study how to make an air bottle, while Doudou began to study by the lake, how to make himself better dive. Unlike Zhao Fei's thoughts, Doudou directly wanted to solve these problems by relying on his own strength. This may be the difference between the aborigines and Zhao Fei, a traverser.

Zhao Fei always wants to solve problems in a simple way, or in a technological way. On the contrary, Doudou is more accustomed to using strength, or rather, the life of the entire continent is more suitable for using strength to solve some seemingly impossible problems. This may be the difference in the thinking caused by the difference in the development model of the two worlds.

[The seniors said that there seems to be a solution, but it will take some time. Now I'm trying it myself to see if I can solve it more easily. Underwater, the body is not good, the strength cannot be used, this problem is not big, the most difficult thing is that once there is no air, we can't move. 】

[If we want air, we need a certain amount of space. If you can get some enough space, not only can you have more air, but you may also be able to move around a lot more flexibly!]

[In this case, it is appropriate to find a way to squeeze the water away.] Squeeze out the water, then the underwater pressure will not be so great, and even the dive should be much faster, much more convenient!]

It works!

When Zhao Fei was working the air bottle, Doudou began his own experiment. Speaking of which, Doudou does have a trick that is very suitable for this practice!

Blade Armament!

The high-speed flow of air enveloped Doudou's whole body. With the high-speed flow of air, it is absolutely difficult for the lake water to invade the body.

Looking at the body that seemed to be armed, Doudou was stunned.

[Just that, as if it wasn't enough......]

Considering that in addition to draining the water, it also needs enough air to drain the water. And there is no air under the water that can enter the blade armament, so it can only be filled with air on the shore. In this way, if you want enough air, you need to be able to encompass a blade weapon to increase the volume!

Doudou began to control the blade armament, expanding the blade armament as much as possible to allow for plenty of air. However, Doudou also knows that there is a certain limit to expansion, and he can't expand indefinitely, otherwise he won't be able to control it.

Feeling that he was well prepared, Doudou took a few deep breaths, and after trying to fill in a little more air, he gritted his teeth, "poof", and jumped into the lake again.

Sure enough, this time, Doudou, who was in the state of sharp blade arming, was not hindered by too much water at all, and sank in the water very lightly.

[Great! It worked. And at this speed, you will definitely be able to reach the bottom very quickly!]

The high-speed flow of air separates the lake very lightly, and for Doudou, it is almost equivalent to having no lake in front of it. So, it's descending at a speed that seems to be falling through the air. It's not as fast as a freefall, but it's pretty fast.

With this feeling, Doudou felt that he would be able to sink to the bottom of the lake quickly!

However, if Zhao Fei knew that Doudou had such a naïve idea, he would definitely roll with laughter. If you really want to do this like Doudou, there will definitely be an accident, and it will make Doudou unforgettable for the rest of his life. This kind of diving method, if Doudou is not able to realize it in time, it is quite dangerous, and it is too late to surface at all! (To be continued......