The next day, Xu Guangling did not continue to go up the mountain, but went to the provincial library.

In fact, there is a library in the county, but the number of books in that collection is extremely limited, and Xu Guangling even doubts whether there are books on the "aquatic life" project in it.

That's right, what he's going to check this time is aquatic life.

The purpose is to make some preparations for the next heavenly pool.

Reading books is really not a problem for Xu Guangling now.

One day, just one day!Xu Guangling went from being ignorant of aquatic life to being at least proficient, of course, only on paper for the time being. But even so, it is enough to "shock".

But then again, from his first dream a few months ago, Xu Guangling was destined to go further and further away from the so-called world and mundane.

The incredibleness of ordinary people, in his place, in the two old people like Zhang Lao and Chen Lao, many are just waiting for leisure.

stayed overnight in a hotel, and the next day, Xu Guangling found an outdoor store and bought a knife.

Miscellaneous knives, well, anyway, they are a brand that Xu Guangling doesn't know, but the quality is quite good. In fact, the current slightly better knives, not to mention the military, as far as the civilian level, in ancient times, are all steel, and even thousands of tempers cannot be compared.

This is the gap between the times.

After returning to the research institute, he rested for most of the day, and the next day, Xu Guangling went up the mountain again.

This time, he didn't know how to stay in the "mountain" for a few days, so he didn't go to Lao Tan's place, but changed his route and went up the mountain from another corner. Of course, this is also a need for inspection.

On the way to the mountain, Xu Guangling was still open-minded, searching and locating all medicinal plants.

When he went up to the top of the mountain, when Tianchi was in sight, Xu Guangling looked around.

The snow had stopped, but the wind had not stopped, and it was especially bitter.

It's cold before frost and cold after snow.

With the cold wind like a bad breath like an ice knife to hit the head and face, that can really blow the weaker people to cry, so at this time, the top of the mountain is still silent, looking around, there is still no tourist.

Xu Guangling is not afraid of the cold, but he is also uncomfortable when he is blown by this wind.

The feeling of "fluttering like a fairy", that's really no, some just hope that the wind can be a little smaller, not to blow so that people's eyes can't open their eyes.

But of course the wind won't listen to him.

Therefore, Xu Guangling did not have any interest in touring, but went straight to the goal.

Under the search of Tianyan, Xu Guangling found the ice surface of Tianchi against the mountain wall, a place where the ice was relatively weak, it was probably a hot spring nearby or something, and then, with a wave of the knife, a hole for him to enter and exit appeared in only a few tens of seconds.

This time up the mountain, Xu Guangling also brought a large package, which contained the clothes and dry food he had changed, and the package was left by him in a dense forest halfway up the mountain.

So at this time, Xu Guangling dressed up in a single dress and entered the Tianchi with thick ice.

The knife was the only thing he carried.

Before the person entered the water, Xu Guangling shivered slightly.

It's really not physical coldness, it's psychological feedback. Break through the thick ice and jump into the water?

Xu Guangling had never done such a challenging thing before.

The changes in his body and mind are huge, but in terms of time, they are really not long. Therefore, the kind of fear that belongs to ordinary people is still unavoidable.

However, after really entering the water, he didn't feel the cold for the first time, Xu Guangling's more tense mood was suddenly released, and after his whole body entered the water and his limbs were stretched at will, Xu Guangling completely relaxed.

But it's not right to say thoroughness right now.

In addition to the cold, there is another thing that Xu Guangling needs to consider.

That's the problem of breathing.

"Tongyixin, you can stay underwater for about half an hour, Tongsanxin, you can stay underwater for two or three to seven or eight hours. ”

These are the words of Zhang Lao.

Xu Guangling believes it, and he firmly believes it, but he has not verified it in person, so it is still a bit false.

At this time, for the first time, Xu Guangling did not go into the water, but stayed under the entrance of the cave, waiting for the body's reaction.

The reaction came quickly.

It is impossible to breathe underwater, and after the whole body enters the water, Xu Guangling's breathing at the mouth and nose is cut off.

There was not the slightest feeling of suffocation, because almost at the same time, Xu Guangling felt his palms and feet move slightly, and then with a slight chill breath from his hands and feet into his body.

After about a few dozen seconds, Xu Guangling adapted to the cold.

It was only at this time that Xu Guangling finally truly and completely put his mind at ease.

In fact, the current experience did not bring Xu Guangling much new feelings, after getting the conclusion that "you can really breathe underwater", Xu Guangling soon found that the current state of his body had been experienced by him a long time ago.

Many times he felt this way when he was lying in bed at night! Dare to love those times, he was breathing with his hands and feet.

It's just that at that time, the experience was not as obvious as it was underwater.

Without any worries in his heart, Xu Guangling looked around.

Although there is white ice and snow on it, the underwater vision is not good, you can see four or five meters away when you look flat, and you can only see two or three meters when you look down, and two or three meters away, it is dim.

Beyond the darkness, it must be darkness.

There is a fear of darkness in people's hearts, and this fear comes from the unknown, and if it is dark underwater, this fear will be doubled, doubled to the point that it is equivalent to hell.

After having a more comprehensive understanding of aquatic creatures before, Xu Guangling almost eliminated most of the "unknowns", but he also didn't like the dark. In addition, caution is the best, so immediately after, he activated the Sky Eye.

What does it feel like to start Sky Eye here?

It's like walking in a corridor in the dark of night, and the lights are gradually turning on.

The eye of the sky does not depend on light, it does not depend on vision. This is something that Xu Guangling could not be completely sure of until this time.

Underwater, at this time, there was a glimmer of light in Xu Guangling's "vision". Just as when the morning dawn came, the darkness had receded, and the light had just begun, and between heaven and earth, it was said that the darkness was not dark, but it was not very bright.

The leather knife was fastened to his belt, and Xu Guangling's hands and feet were stretched, and he slowly swam forward and downward towards the front of the back wall.

There was nothing in sight but water.

Gradually, the mountain wall was out of sight, and Xu Guangling estimated that he had descended dozens of meters.

For ordinary people, without any tools, this is already the limit or near the limit of diving.

With bated breath, the underwater pressure, which was not very stressful, will become more and more terrifying.

Just like water, the water that can linger gently between your fingers will gradually become cold and hard as the temperature drops, then freeze, and then the ice edge will be sharper than the blade of a knife.

But for Xu Guangling, this problem does not exist.

At the beginning, he was still a little restrained, not very open, this way to swim, after diving dozens of meters, but he became more and more comfortable, and the swimming became more and more "natural".

It's like.

He was meant to be a fish.

A fish that lives here.

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Thanks to "Brother Xiaoji" for his monthly pass.