Two hundred and eight,

The scenery in front of them was so shocking that even if the three of them actually saw it, they didn't want to believe it, and turned on their flashlights to illuminate the scene in front of them.

Although the original mountain road is undulating and the width is irregular, the overall size still has a certain range. But within a meter in front of this stone slab, the width immediately expanded, about the width of a basketball court. And the roof of the cave also rose sharply, and the flashlight went up to find it, but it couldn't reach the end.

The stone slab in front of it, about five meters wide, is connected to the mountain behind it, and the thickness is not visible. But the height was the same as the top of the cave, out of sight of the three of them, and seemed to lead to the endless sky.

"You say, "This tablet was not left by God?" ”

"Don't have anything to do with God, God has nothing to do, what do you do with a stone slab as high as a mountain. Li Jingfei said disappreciatively.

"That's what the aliens left behind, and I don't believe it's humans. ”

"It can't be left by humans. Hearing this, Fan Lingwei disagreed: "Although there are many prehistoric relics in this world that cannot be verified, the miracle buildings with clear records are all built by human beings themselves. Together with my colleagues, I have protected many researchers who go to places that are inaccessible, where there are ancient ruins, and after the investigation and research of those researchers, they are all built by humans themselves. Even such a complex building can be built, let alone such a stone slab. ”

When the two were discussing whether the slate was man-made or alien-made, Li Jingfei had already run over to take a closer look.

The surface of the boulder is smooth and smooth, with no signs of perennial erosion, and there are no written records or remnants of murals on it.

After studying it, I found that there were no clues, and when I looked back, I found that the two had also given up arguing, turned off the flashlight and sat there weakly.

Li Jingfei understands that they have traveled all the way, and they don't know how long, but it turned out to be a dead end, and who can still have the spiritual head to study whether this stone was carved by humans or left by aliens, and it is enough to vent the depression in their hearts.

Although the flashlight is a high-end product, it can not only shine far away and has a strong battery life, but it can't stand Li Jingfei using it like this, even if it is turned on to the maximum at this time, the light source seems to be a little faint and flickering.

Li Jingfei hurriedly adjusted the flashlight to the minimum, only to keep the three of them seeing each other, and then sat down to rest.

"What, why do you see why you're here?" Seeing Li Jingfei sitting down, Fan Lingwei asked casually. Walking from one end of the cave to the other is a dead end. If the rescue team fails to rescue them in time, then their only luck is that they will die and have a place to be buried.

In order to cheer up the two, Li Jingfei said mysteriously: "You guessed wrong, this is really possible that it was built by aliens." ”

"Really!" Su Wen listened, and was also a little proud.

"What evidence is there?" may be dissatisfied with Li Jingfei's conclusion, or may be infected by the tone of the two, in short, Fan Lingwei at this time finally has a trace of vitality: "Don't say it's your stone slab, even if it's a bronze pillar of the same size, or a bronze ancient tree with a more complex process, humans can build it, how can a stone slab be left by aliens." ”

"Because it's a stone slab, not a bronze pillar or a more complex piece of metalwork, it's possible that an alien left it behind. ”

"Why?" I didn't expect Li Jingfei's words to make Fan Lingwei and Su Wen ask in unison.

"Because I've seen it, this slate is made of cement. ”

"What about cement, is it more difficult to make cement slabs than bronze slabs?"

"For modern buildings, cement is nothing, but artificial cement only appeared in the middle and late Qing Dynasty, in such an ancient cave, how can there be cement that can only be found in modern times?"

"Maybe my country already knew how to produce cement in ancient times. Fan Lingwei was still unconvinced and said: "It's just that this craft has been treasured by the royal secret, so it has not been lost to the people, and with the rise and fall of the dynasty, this secret has also disappeared in the long river of history." ”

"Adhesives are the shortcomings of ancient China, if there is such a good thing, it would have been used in the construction of ancient cities a long time ago. Even to protect this secret, it will be used at least when building the mausoleum. But after the ancient tomb test, you have seen this major discovery reported on the news. ”

"That...... Who said it must be an ancient ruin, maybe a modern product. You're not saying that someone in this mountain is secretly planning some kind of conspiracy, maybe that's what they came up with. ”

That's right, Li Jingfeng's heart was shocked, why didn't he think of it? Why did an incongruous building appear in a cave that formed at some point, it must have been built by a prehistoric civilization or aliens. If it was made by those conspirators in the mountains, then what was the use of them building this slate, could it be that those animals became idiots because of this slab? If that's the case, then the three of them are so close to the slate, will they also be affected and become idiots.

Just when Li Jingfei's brain was running rapidly, Fan Lingwei had already bypassed him and picked up a flashlight to observe the slate up close.

It seemed that Fan Lingwei's words were touched, maybe it was to divert his energy from the pain on his body, or maybe he was really interested in this kind of ruins, Su Wen also stepped forward to see what was going on.

But Li Jingfei had some scruples in his heart, so not only did he not walk in, but he moved farther away.

"It seems that this is a really modern product. ”

"Why are you so sure?" Su Wen couldn't help but ask curiously.

Fan Lingwei touched the slate with her hand and said: "First of all, we can be sure that this is made of cement, even if it is only a surface layer that we see, but that also shows that he is a modern craft." If you look at the environment here, the air contains water, and there are some water droplets on the surrounding mountain walls. If it was left by aliens from ancient times, there should be corrosion on this slate, but if you look at this slab again, you can see that the appearance is still very new. ”

At this time, Li Jingfei turned on all the defensive functions equipped on his body, just to prevent this stone slab from suddenly activating and making them all become idiots.

Just when the three of them were focusing on the stone slab, Li Jingfei suddenly felt cold all over his body for no reason, and the hairs on his back stood on end.

How could there be such a feeling, could it be that the slate had been activated? Thinking of this, Li Jingfei looked at the slate more vigilantly, and instinctively took a few steps back.

At the same time, Fan Lingwei, who was explaining the age of this slate to Su Wen, suddenly stopped talking, turned around suddenly, and took a flashlight to find the dark place behind her.

Seeing Fan Lingwei's work, Su Wen and Li Jingfei also instinctively turned around to look ahead.

He had already come to the end of this cave, so he didn't need so much electricity, and after recovering from the shock of the stone slab, Fan Lingwei was the only one who turned on the flashlight. But at this time, both of them sensed the danger and hurriedly lit the flashlight in their hands.

The three pillars of light shot straight into the distance, but where the light did not reach, a black shadow suddenly flashed.

Su Wen had never encountered such a situation, and suddenly saw a black shadow flashing in the dark and closed cave, and he was so frightened that the "bia ji" flashlight fell to the ground.

was already nervous, but this sudden sudden made the other two people can't help but look at him. Finding that Su Wen was fine, he hurriedly searched the distance with a flashlight, but this time he didn't find any black shadows.

Although they didn't see anything unusual, the three of them did not relax their vigilance, and still took the flashlight to scan carefully from far and near.

Sweeping and sweeping, Fan Lingwei suddenly heard a trace of abnormality, hurriedly raised the flashlight up, and said, "On it!"

As soon as they heard Fan Lingwei speak, the two hurriedly raised their flashlights, just in time to see the black shadow flash from the aperture again. But this time, the three of them were prepared, and took a flashlight to shine it along the place where the black shadow flashed.

Since the flashlights of the three of them can adjust the irradiation method, after expanding the irradiation range, they soon saw that the black shadow turned out to be a snake with the thickness of an adult's arm.

The snake is a reptile that, since it does not have limbs, uses special types of locomotion:

One is the meandering movement, in which all snakes are able to crawl forward. When crawling, the snake body makes a horizontal wavy bend on the ground, so that the back of the bend exerts force on the rough ground, and the reaction force of the ground pushes the snake body forward.

The second is the crawler movement, the snake does not have a sternum, its ribs can move freely back and forth, and there are costal skin muscles between the ribs and the abdominal scales. When the costal skin muscle contractions, the ribs move forward, which drives the wide abdominal scales to erect in turn, that is, slightly warped, the upturned abdominal scales are like stepping on the ground, but at this time only the abdominal scales move and the snake body does not move, and then the costal skin muscles relax, the posterior edge of the abdominal scales exerts force on the rough ground, and the snake body is pushed forward by reaction, and the effect of this movement mode is to make the snake body crawl forward in a straight line, just like a tank;

The third way is the telescopic movement, the front of the snake body is lifted, stretch forward as much as possible, when it touches the supported object, the back of the snake will follow the retraction forward, and then lift the front of the body to stretch forward to get the support, and the back part will retract forward, so that the snake can continue to crawl forward.

Snakes that crawl slowly on the ground, such as lead-colored water snakes, will quickly expand and contract continuously when they are alarmed, speeding up the crawling speed and giving people the feeling of jumping.

But no matter how you move in that way, you know that snakes can go up mountains, climb trees, and go into water, but I have never heard of snakes walking against mountain walls, or even climbing on the top of caves and walking upside down.

However, this novel is not an animal world, nor does it study the theory of evolution, he is a chaotic novel that combines elements such as immortal cultivation, fantasy, science fiction, and weirdness, and in this work, you can see everything, so it is not surprising that a snake can swim against the roof of the cave.

But when Li Jingfei and the others saw this scene, they were still a little surprised.

However, since this mountain forest is already different, and the cave is full of weirdness, it is not impossible for the creatures in it to evolve to this step.

The snake existed in the light for a while and then disappeared, and the three of them didn't have time to think about why the snake could stick to the roof of the cave, so they hurriedly moved the flashlight and followed the snake's departing trajectory.

Perhaps it had lived in this dark cave for a long time, and the snake was obviously afraid of light, which is why it did not appear in the previous journey.

Within the distance of the flashlight, the cave wall was relatively flat, with no winding ups and downs, and no raised stones. I don't know if it is caused by the long-term life of this snake, or because of the smooth environment here, so the snake chose this place as its nest.

In short, although the flashlights of the three of them move quickly, the snake is more familiar with this place and can always avoid the light in time.

The three of them noticed that the snake, although trying to avoid their light, was not aimless, and it was clear that he was approaching the three of them.

Now the situation is no longer that they use light to chase snakes, but that they use light to block each other.

But this is not a long-term solution, one of the three of the flashlights is about to run out of power, and Li Jingfei also plans to adjust the light in his hand to astigmatism, while being able to stop the snake's advance at the end. So while blocking the snake, he also turned down the flashlight source, hoping to hold on a little more.

"It's not the way to go. The three of them were already leaning against the stone slab, and the snake was less than twenty meters away from the three of them: "Or let's fight with it." ”

"How to fight!" Su Wenyou began to cough uncontrollably due to the stabbing of fear.

"Let's ...... it like this"