may be because of the horrific tragedy thirty years ago, it can be seen that everyone's nerves are tense at this time, especially Zhang Chengliang and several of his subordinates, after entering the second cave, the guns in the hands of several people did not put down.

"Let's put this matter aside for the time being, we still have to go inside, the answer should be inside!"

Zhang Chengliang led the way, everyone was holding a strong flashlight, and almost all kinds of gravel and abandoned excavation tools were in the light, and it could be seen that it was a big project here, conservatively speaking, it could not be done without thousands of people, and it would take decades to say the least.

The further I went, the more doubts I had in my mind.

This space is also bigger!

If it weren't for Zhang Chengliang's affirmation that this was already the case when they first entered the cave, I wouldn't believe that this was the work of the ancients thousands of years ago.

How many rare metals do you have to smelt in such a large mining field, and the question is why it has not been discovered so far?

After walking for another seven or eight minutes, the scene in front of me changed, first I heard the sound of rushing water, and then there was an underground river in front of me, and there were several puddles along the river, the big football field was the size, and the small one was like a basketball court.

Zhang Chengliang looked around and went straight to one of the small puddles.

"When the water quality composition was tested, there was a problem with the water in this puddle."

The two geologists and the beautiful professor were obviously prepared, and they bent down to take out a glass bottle from their backpacks, scooped up half a glass of water, and the three of them cooperated to take out a few large boxes from their bags.

After the two of them operated, Mr. He first said, "Huh": "The minerals in the water are exceeded!" It was 50 percent higher than the drinkable mineral water, so it's no wonder that the villagers went insane. ”

Teacher He looked at the half-brick-sized instrument in his hand, and was only surprised at first, but after a few glances, his face suddenly changed: "This ...... This water has been irradiated! ”

"Oh? What does Mr. He mean is that the water quality is polluted? ”

Director Qin asked in a low voice.

"It's not! No! It's irradiated – I have the world's most advanced water quality testing equipment, and I can tell that the water in this pit has been irradiated by a special mineral! …… Strange! It's different from what is known to be radioactive......"

Teacher He seemed to be answering Director Qin's words, and seemed to be muttering to himself.

The beautiful chemistry professor glanced at it a few times, and her brows furrowed: "It's quite strange, even I have never seen this kind of elemental atlas - it is somewhat similar to that of a rare metal." ”

"Looks like there's something wrong with the water here!"

As I was talking, I caught a glimpse of Zhang Chengliang turning around and saying something to a few of his subordinates, and several of them quickly put down their guns and took out a strange "mask" from their bags.

The "mask" also has two thumb-thick jars at one end.

It's a simple diving machine!

It's similar to the diving equipment we used at our water station before.

"Chengliang, what do you want to do?"

Director Qin was obviously stunned when he saw the actions of several soldiers, and from the degree of his reaction, I could see that he didn't know what Zhang Chengliang was going to do in advance.

In fact, what they see in front of them, what they want to do, you still have to guess!

"Director Qin, I took the initiative to ask Ying this time, in addition to leading the way and protecting you, I also have a special task, that is, to find out what is at the bottom of this lake."

Director Qin took a deep breath, and his face instantly returned to calm.

"Wouldn't that be dangerous?"

Zhang Chengliang smiled slightly, stared at the water, and was silent for half a minute before replying: "Maybe I was able to survive back then, because God arranged for me to complete what I didn't finish thirty years ago." ”

"Oops! Over here...... How can there be our forensic gloves here, and ...... And tweezers......"

Xiao He's exclamation came from behind us, breaking the oppressive atmosphere of the scene.

"Everyone turned around.

I saw Xiao He and Wang Shengjia standing on the side of the big stone at the back of the crowd, bending over and looking at the ground.

"What did you find?" Thousands of troops

Director Qin was the first to walk towards the two beauties, Liu Xili followed, and I also hurried over.

In the gap between the two big stones in front of Xiao He, there were a few faded things, and if you looked closely, there were gloves and small tweezers, because the time was too long, most of the things were no longer recognizable.

"I guess it was left over from thirty years ago!"

Director Qin glanced at it a few times, and actually smiled bitterly, then took out the file folder from his bag, turned a few pages, and turned out an old A4 paper: "This is the scene of the murder back then!" ”

With that, he shook the old paper in his hand in front of us.

I was close to the distance, and my line of sight was good, and when I glanced at it, I saw that the old paper was a simple outline of the map, and there were a few text descriptions, which were written very casually. It should be a record of the scene investigation after the murder occurred that year.

"The murder happened on the edge of this puddle? Supposedly, it's still a few hundred meters away from the mining site, and what are the absentees and geologists doing here! ”

Liu Xili said and put on a mask and white gloves, and began to search the scene with the two beauties.

Zhang Chengliang and the others didn't look at it, they quickly put on their diving equipment, and they didn't seem to be interested in what was happening here.

After a few water sounds, only a rippling water wave remained on the water surface.

Only Zhang Chengliang stood on the shore, he turned his head, his mouth moved slightly, but he didn't say anything, but only smiled at us, and then put on the hat of the submersible. I don't know if it's because of the environment or the light, but I always feel that his smile is mixed with a very complicated meaning, giving people the feeling of wanting to speak and stopping.

"Be careful!!"

Director Qin shouted at his back, but I don't think I can hear it anymore!

All of us gathered around the puddle again.

"Everyone, be careful! I still haven't figured out what happened back then, and according to the criminal file in my hand, after the crime that year, except for the ink daber, there were no valuable clues left at the scene. ”

I think of Sun Ruyue and Sun Jingshui, and when I think of Tian Zhen and Yu Jin's story about the strangulation of people by ancient corpses in the Yellow River, I always feel that these two events are related to the murder that happened here that year.

The two geologists and the beautiful professor didn't know what they were attracted to, and they crouched on the ground and muttered something quietly.

"What are you looking at?"

The beautiful professor glanced up at Director Qin: "This seems to be a crater!" ”

As he spoke, he straightened up and shone a flashlight on the broken stone face that was almost straight up and down from the edge of the pit.

"Crater?" Director Qin took a deep breath, "Are you saying that this puddle was created by a meteorite impact?" ”

"Not bad!" Teacher He replied first.

"Isn't the crater supposed to be on the ground? It's three or four hundred meters underground. "Listening to him, I had a picture of the craters on the surface of the moon

Professor Han asked suspiciously.

"Well! I can't say it in a few words, let's put it simply! This should be formed by a meteorite impact tens of thousands of years ago, and the "tens of thousands" here will take a million years to say the least, because at that time, the lower reaches of the Yellow River belonged to the shallow sea, there was no land at all, and the underwater was a rocky riverbed. ”

When I think of the huge cracks under the Yellow River and the thirteen ghost caves of the Yellow River, as well as the bronze gate in the depths of the 100,000 mountains in Zhangjiajie, I only feel that there are some fragments of information in my mind that are constantly shaking, as if I want to piece together some huge image, but I can't put it together for a while.

It's a meteorite again...... Could it be that these places are related to each other?

Deep in the cracks under the Yellow River lies the secrets of prehistoric civilizations - could it be that prehistoric civilizations are related to meteorites?

In an instant, the plot in the American science fiction film flashed through my mind like a marquee, what "Star Wars", "Alien vs. Iron Warrior", that period of civilization in advance will not really be the same as described in American blockbusters, from an alien planet!

Hurry up and retract your divergent thinking – it's too sci-fi!

After waiting for several minutes, I didn't see anyone peeking out of the water, and the atmosphere became more and more tense.

"Director Qin......"

Zhang Lihai wanted to speak and stopped. Director Qin glanced at him and didn't speak.

Another ten minutes passed, and during this time, everyone simply held their mobile phones, like the referee at the end of the 100-meter run, and everyone held a stopwatch in their hands - everyone's expressions were very solemn.

"The oxygen cylinders they were carrying would last at most twenty minutes, and now they ...... It's ...... time since they're in the water It's been seventeen minutes! ”