Through that strange crack, we tried our best to look to the other side, trying to see where those birds as big as flies had flown.

But those birds have long since disappeared.

At this time, my cousin seemed to have thought of something again and picked up a stone from the ground. It might be for safety to prevent him from falling into the crack, so he lay down and climbed up twice, approaching one end of the stone pillar.

, and then started to knock the stone pillar with the stone in his hand, and while knocking, he listened carefully to the sound made by the stone pillar. What was he going to do?

After knocking a few times, he stood up, turned to us and said, "This stone pillar is empty inside."

Everyone was shocked again - what, the stone pillar is hollow?

Hearing what his cousin said, Xiao Lei also picked up a stone, lay down on the ground and did the same thing. Then he stood up and nodded and said, "My cousin is right, this stone pillar is indeed hollow."

Crazy Six asked his cousin in surprise: "How did you guess that this stone pillar was hollow?"

This is what we want to ask. Looking at the series of actions of my cousin, he should have guessed that the stone pillar was hollow before hitting it with a stone to verify it.

"Have you noticed that the group of flying insects, or to be precise, the group of birds, just flew to the entrance of the hole, which is the hole where human skin got into? They should have wanted to get into that hole, but the hole was closed

Once there, they can't get in.

Have you ever thought about why they wanted to enter that cave? I think it was to find the human skin.

That group of particularly tiny birds happened to be hanging on human skin in the 'branch', so those birds were closely related to human skin. I think, given the size of these birds, they should be parasitic on the human skin.

On human skin, because the cells on human skin have a very fast metabolism, they should produce a large amount of 'dead skin', which is what we call 'dander', and those birds may feed on the dander.

"

Kenya next to her frowned and couldn't help but say softly: "Oh, this kind of bird is so disgusting." After hearing what her cousin said, everyone felt the same way.

The cousin continued: "But I think there should be a 'symbiotic relationship' between human skin and these birds. The birds eat the dander of human skin, and after the dander is eaten by this bird, it will also affect the human skin."

It is very beneficial, otherwise if the dander is not cleaned up in time, it will stick to the surface of human skin, and the function of human skin cells will also be affected."

"We can all understand what you said, but how did you guess that this stone pillar is hollow?" Sister Li asked.

The cousin smiled slightly, pointed to the stone pillar and continued: "This kind of bird is very strange. They look for human skin, just like bees find flowers. They must be extraordinary in this regard. Since they saw that the entrance to the cave was closed, why did they

Will it fly to the other side? The biggest possibility is that the human skin is on the other side.

How can human skin get to the other side? Look, what’s the shortest and most convenient way to get from here to the other side? Of course it’s through this pillar. Although human skin can also fly across with the wind, this crack is there after all.

It's more than ten meters wide. Also, have you noticed? Because the terrain here is complex, the airflow is very chaotic, and it is very difficult to use the wind to float over it.

Even if the human skin walks along the stone pillars, it is not very easy, because the human skin is very light, so it can easily be blown to other places by the turbulent currents.

Therefore, for human skin, the best way to get to the other side is to drill through the stone pillar. From this, I suddenly thought that the stone pillar might be hollow."

It turns out that this is the case. My cousin's thinking ability and reasoning ability are beyond the reach of ordinary people.

At this time, Xiao Lei lay on the edge of the crack and looked under the crack. The sun was shining brightly today, but because the crack was twenty or thirty meters deep, it could not fully illuminate the bottom. Unfortunately, we did not bring a telescope, but even with a

With the naked eye, you can also vaguely see the situation at the bottom.

The bottom seems to be a piece of green grass, and there are some big boulders. It looks flat, and it seems to be no different from the bottom of a normal valley.

"I want to go down and have a look. It's no problem to go down with a rope at this height." Xiao Lei suggested. "There are stone pillars in this crack. I always find it very mysterious. At the bottom of this valley, maybe we will have a new one."

Discover."

Everyone knows that with Xiao Lei's skills, it is certainly not a big deal to descend into this valley with a rope, and he can come up easily, but the valley below this crack is very different from ordinary valleys after all.

Speaking of other things, it's very unusual to feel a strong dizziness when you look down.

We have seen many canyons deeper than this, but we have never felt such a strong sense of dizziness. Based on this alone, we know that this crack is not very strange. Therefore, if we venture down to the bottom of this crack, it should be

Very dangerous.

Therefore, for Xiao Lei's plan, his cousin, Madman Six, Old Man Yuan, Mr. Chen, etc. all unanimously expressed opposition. Old Man Yuan said: "Young man, you are very brave, but the bottom of this crack is indeed

It's so weird. You may not know that every time it rains, a miserable laughter will come out from this crack. Therefore, there are too many mysteries under this crack. If you don't understand it clearly, you will rashly

It’s really too dangerous to go down.”

Seeing that everyone did not agree with what he did, Xiao Lei pondered for a moment and said: "Actually, I have thought of what everyone said, but I feel that so many mysteries are like threads that are tangled together. The only way to sort them out is

With one clue, the others may be solved, so I want to start from this clue and pursue it carefully all the way, maybe there will be important discoveries."

Everyone was silent for the moment. In fact, what Xiao Lei said made sense, and with his skills and abilities, if he went down, he would definitely find something. But on the other hand, the bottom of this crack was really weird.

.

Finally, it was my cousin who spoke: "Well, Tian Liwen and Professor Shan may know more secrets about this than us. Why don't we go back and ask them?"

Everyone thinks that my cousin's method is feasible.

At this time, a thought flashed in my mind. I felt nervous and said quickly: "It's broken. We have all come here to chase these 'flying insects'. There is no one left to guard that section of 'branches', waiting for us to go back."

Will it disappear when the time comes? Because this place is so weird, our clues will always be mysteriously cut off."

Mr. Yuan smiled slightly and said: "Well, it is possible. Brother Wang just thought of this, so when we came over to catch up, he reminded him of it a little. I whistled to let the

Only the 'Phoenix Queen' is standing by, maybe you were all chasing so fast that you didn't notice this."

So it turns out that my cousin was thoughtful. With that kind of "Phoenix Queen" taking care of me, there should be no problem.

Everyone checked around the crack for a while, and then returned to Old Yuan's courtyard. Sure enough, the 'Phoenix Queen' was standing on a stone not far away, looking at the 'branches' on the ground.

The breeding bird is here, so no one can steal it.

In addition, I also gradually realized that the reason why Old Yuan did not let the Phoenix Queen follow him was to let the Phoenix Queen look after the house, because in Old Yuan's home, just the few bookshelves of Xuan Heng's manuscripts were worth

It is immeasurable. If there is a slight mistake, the loss will be too great.

In fact, the next step for everyone is to question Tian Liwen and Professor Shan carefully, because judging from Tian Liwen's words heard by the female translator, the two people must be hiding a major secret from us, and this kind of secret may be related to that person.

It has something to do with human skin, and it may be extremely important to us.

When we returned to Mr. Chen's home, we found two Japanese female assistants helping Mr. Chen's wife prepare lunch.

But I didn't see Tian Liwen and Professor Shan. Could it be that they haven't gotten up yet? No, it's almost noon now.

"Professor Shan, where is Xiaotian? Have they not gotten up yet?" Mr. Chen asked his wife.

"I woke up early, and the girl told me that they still had some urgent matters to deal with, so they left first and said they were very grateful to you for saving Professor Shan," Mr. Chen's wife replied while cutting vegetables.

"What? Gone? How could you let them go?" Mr. Chen said a little emotionally.

His wife rolled her eyes at him, but her tone was still very calm and she said: "It's really strange, you didn't let me stop them. Besides, they were just about to leave, could you stop them?"

My cousin quickly smoothed things over and said, "Ha, yes, my sister-in-law is right. Alas, it's actually okay. We originally had something to ask them, so let's just leave."

Mr. Chen's mood slowly calmed down, and he knew that he really couldn't blame his wife for this matter.

Old man Ouyang told us that not long after we left, Professor Shan and Tian Liwen got up, had a hasty breakfast, said they still had something to do, and left.

We were somewhat disappointed that an important clue was cut off just like that. Perhaps the reason why they left so quickly was because they were afraid that we would get to the bottom of their secrets.

"Don't be disappointed, didn't they say they were in that hotel? We can just go to that hotel and find them directly," Sister Li suggested.

Xiao Lei shook his head: "I'm afraid it won't be easy. Professor Shan was hypnotized in that hotel, so they must be full of fear of that hotel. They won't stay in that hotel for more than a second, let alone again."

We spent the night there, and when we went to the hotel to find them, I'm afraid they had already left."

After listening to Xiao Lei's analysis, everyone nodded repeatedly. Xiao Lei was right. This is human nature. In this way, looking for two people in this vast mountain is like looking for a needle in a haystack.

We may never see these two mysterious people, and we will never have the chance to decipher the secrets hidden in them.

Just when everyone was disappointed and regretful, something unexpected happened - Mr. Chen's wife was heard shouting loudly in the courtyard: "Come on, everyone, the girl is back again. Come out and take a look."

What, Tian Liwen is back again?!

Xiao Lei ran out first, and we followed him to the courtyard. At this time, we saw Tian Liwen sitting on the stone in the courtyard, breathing heavily, her pants and top were scratched, and her face

There were also a few scratches and bruises on his face, and his face looked frightened and extremely emotional.
Chapter completed!