Xiao Lei took out his sapper shovel and wanted to try if he could dig down in the crater, but those red stones, although there were countless small holes, were as hard as steel, not to mention digging, and when the sapper shovel knocked it on, it was a metallic sound.

"Maybe in this pit, there is some mechanism, after touching the mechanism, there will be a hole or something like that, I guess that Zhu Leting entered in a similar way, and it can't be the kind of crack that opens and closes automatically, because the crack that opens and closes automatically will never open and close so quickly and in time - even the pursuers who are more than ten steps away from them have not seen any traces when they chase to the edge of this crater, and the cracks that open and close naturally cannot be done so quickly, and those cracks open and close so quickly, There will be rumbling sounds, and if that sound had appeared, it would have been mentioned in the history books. ”

The madman looked at the crater and reasoned to himself, and we felt that he had a point.

Kenya suddenly asked, "Why doesn't this pit even have a leaf, how can it be so clean?" ”。 I've never been able to figure out this question either.

Xiao Lei replied very quickly: "My cousin just said that from this pit, there will be a steady and upward air flow, just like above the crater, forming an air flow hood, so leaves and debris and the like can't float in." ”

After saying this, he frowned again, as if he thought of something again: "However, even if there are no deciduous grass clippings in this pit, there should still be animal carcasses and feces, why don't those hares, pheasants, mountain rats, and the like come in?" There is only one possibility, that is, this upward gas can produce a frequency, and this frequency will make these animals very uncomfortable, so these animals do not come, because these animals are much more sensitive to small vibrations of the ground than humans, and the reason why they can premonition earthquakes is also the reason. ”

The cousin on the side, after hearing Xiao Lei's words, seemed to be inspired, and suddenly said: "By the way, I thought of a very important point." ”

Everyone hurriedly stood up straight, and all looked at their cousin, knowing that he had made another heavy discovery.

The cousin looked at the "monkey eagle" in Ouyang's arms and said: "It is mentioned in the history books that after that Zhu Leting entered the crater, there were a few screams from the pit, and said that the screams did not look like they were made by people, so was it the strange bird in Zhu Leting's arms, the cry made?" That kind of sound, could it be that used to open the secret passage mechanism, because this mountain seems to have a very strange frequency, is it that kind of scream, just in line with the frequency of the mountain, to open the secret passage? ”

My cousin's idea is too bold, using the sound to open the mechanism of the secret passage? It's really a bit unbelievable, but considering various circumstances, I have to say that my cousin's inference is indeed reasonable.

"This is not difficult, whether it is like that or not, we can try it, it is easy to make the 'monkey eagle' call a few times", the old man Ouyang was very happy.

Of course, the "monkey eagle" also understood, only to see it stretch its neck, try its best to scream a few times, the sound is not as loud as we imagined, but there is a special penetrating power, shaking our whole body, every cell is trembling, when the "monkey eagle" calls, we nervously observe the changes around us, hoping that there is really a dark passage, but the result is very disappointing - in the crater, there are no abnormal changes.

It seems that this trick has no effect, and everyone can't help but smile bitterly, and they all feel that this approach is indeed a bit too ridiculous. It was already more than three o'clock in the afternoon, but we hadn't had time to eat lunch yet, so everyone wanted to go back and eat first.

But at this moment, Hongmei suddenly shouted: "Look, what is that."

We were taken aback, not knowing what Hongmei saw, and hurriedly looked in the direction of her finger, and when we saw it clearly, all of us were shocked.

I saw a bird appear in a small stone pit about seven or eight meters away, and that bird looked almost exactly like the 'monkey eagle'!

Before everyone could speak, Mr. Chen was the first to call out: "Isn't this my 'monkey-headed bird'?" His excited voice trembled a little.

I saw the "monkey eagle", standing there in a daze, Mr. Chen called out, and the "monkey eagle" turned its head, but the action was not like looking, but like a blind man listening, could it still not see?

However, its hearing and smelling abilities seemed to be okay, and it quickly recognized that it was Mr. Chen's voice, and stumbled over with its wings spread.

Mr. Chen and his wife hurriedly greeted him, hugged it into their arms, and tears flowed out, it seems that the relationship between them and the "monkey eagle" is indeed very deep.

We were also stunned by this scene, everyone didn't expect that the 'monkey eagle' that Mr. Chen had been missing for so long would actually appear again at this time, which is incredible.

Mr. and Mrs. Chen hurriedly hugged the 'monkey eagle' over, and after a careful inspection, we all gathered around, and everyone was surprised to find that the throat of the "monkey eagle" still couldn't make a sound, and the eyes were still red, it seemed, as the madman six said, its "Kan Mountain" was cut off, became dumb and blind, and even the hearing was affected to a certain extent.

When we were all looking at the "Monkey Eagle", Xiao Lei walked alone to the place where the "Monkey Eagle" appeared, and suddenly, Xiao Lei shouted at us: "Come here, there is a hole here."

Got a hole? Everyone hurriedly ran over to check.

What we didn't expect was that waves of shocks appeared one after another, and they were all after the "monkey eagle" and called, which should not be a coincidence, but there is some kind of connection.

When we walked over, we found that there was indeed a hole there, but the hole was so small that it could only allow the "monkey eagle" to drill in and out, and people would never be able to get in.

However, it is already a huge breakthrough for us, because after all, there is such a hole! Obviously, the missing "monkey eagle" was drilled out of this hole, and we can be sure that this hole has not been there just now, because we have seen it more than once within ten meters around, and this hole should have appeared after the "monkey eagle" called.

This hole is dark and bottomless, could it be that there is the Ming Dynasty vassal king Zhu Leting hidden in it? Or is there an unimaginable hidden world hidden?

It's a pity that the missing "monkey eagle" has no sound, and what is in the cave has become a mystery that is difficult to solve.

"Old-timer, after this bird's 'Kan Mountain Range' is broken, is there still a way to connect it?" The cousin suddenly asked Madman Six, and Madman Six shook his head and said, "I don't know about this, you can try, but there is not much hope."

Everyone knows that the reason why the people who captured the "Monkey Eagle" made the "Monkey Eagle" dumb and blind may be for the sake of secrecy, and there must be some shocking secret in the cave, and they don't want others to know about it, so they use this method so that the "Monkey Eagle" cannot leak the secret.

The "monkey eagle" in Ouyang's old man's arms suddenly screamed twice, and before we could understand what it meant, we heard Ouyang old man say "no" to it very resolutely.

It turned out that the "Monkey Eagle" wanted to get into that hole to see the situation inside, but was resolutely rejected by Old Man Ouyang, no wonder, seeing Mr. Chen's one, how could Old Man Ouyang not be worried?

Moreover, in this cave, there may be a person who knows birds very well, and he must have a very vicious method to deal with the "monkey eagle", so that he can easily capture Mr. Chen's and make the bird dumb and blind.

"Do you still have that kind of 'mountain smoke'? Since we can't go down, let's smoke it with that kind of 'drill mountain smoke', no matter what monsters are inside, after choking on that kind of smoke, they may come out," Sister Li said.

The madman shook his head and said, "The kind of 'Drill Mountain Smoke' I use has limited medicinal properties, and it seems that it is only effective for ninjas, and it may not be useful for other cavemen." If it is Zhao Chen's kind of 'drilling mountain smoke', it may be much more lethal, then it is another matter. ”

Xiao Lei nodded and said: "For this cave, 'drilling mountain smoke' really doesn't have much effect, but it's a pity that this is in the deep mountains, which is very inconvenient, otherwise you can get a camera, tie it to the rope and put it down, just see what is in this hole." ”

Xiao Lei's plan sounds more or less reliable, but when we get a camera from outside the mountain or something, is this hole still there?

When everyone was gossiping, they heard Xiao Lei shout loudly "not good", before we could understand, Xiao Lei had already blocked his backpack at the entrance of the hole, almost at the same time, the two "monkey eagles" seemed to be crazy, flying into the hole, but Xiao Lei fortunately blocked in time, the two "monkey eagles" knocked down Xiao Lei's backpack one after another, so they did not get into the hole.

All this qiē happened in just a few seconds, except for Xiao Lei, we didn't react, this sudden situation, so that everyone was stunned at once, and when the two "monkey eagles" continued to flutter their wings, still trying to drill into the hole, we all came to our senses, and hurriedly rushed over to hug the two "monkey eagles".

This time, fortunately, Xiao Lei blocked the hole in time, if it was a second late, the two "monkey eagles" would have drilled into it one after another, and in that case, the consequences would be unimaginable.

What shocked us is that the "monkey eagle" is in this "crazy" state, we are still the first time to see, even when the giant eagle hunts it, the "monkey eagle" can maintain composure, and will use the "roundabout flight" method to throw the giant eagle away, why at this moment, but as if under the devil, will desperately fly into the hole?

Thinking back to the series of reactions just now, Xiao Lei should have known that the two "monkey eagles" would definitely fly into this hole before they flew up, so how did Xiao Lei know in advance? Did he find anything out of the ordinary?

This is a mystery to us, but at this moment, there is no time to figure it out, because the two "monkey eagles", apparently not yet regained their senses, are still desperately struggling to fly into the hole, and a few of us hold them tightly.

I heard Xiao Lei suddenly shout: "Hurry up and take them home, and they will be fine when they go home." ”

Xiao Lei This is to let us take the "monkey eagle" back to Mr. Chen's residence, everyone heard this, and hurriedly hugged the two "monkey eagles" and walked to Mr. Chen's yard.

Strange to say, when they left the crater and came to the gate of Mr. Chen's courtyard, the two "monkey eagles" turned out to be normal! What's going on?

As for the reason, this time even the cousin and the madman six were at a loss, and it seemed that only Xiao Lei knew.