At this time, Sun Haibo suddenly remembered Huang Lili's words when she left.

"This place is weird!"

He came to the edge of the borehole and asked, "Why did Old Meng become like this?" ”

Zhao Baolai pointed to the black smoke that appeared in the flashlight pillar of light and said, "It's this kind of thing!" ”

Based on his decades of experience, this substance is an extremely dangerous mineral with a very low ignition point, which means that it only changes to a gaseous state in winter.

Sun Haibo picked up the light source in his hand and shone it into the borehole, only to see wisps of black air rushing outside, and then disappearing into the air three or four meters away.

"What the hell is this?"

Zhao Baolai sighed: "To be honest, I really don't know what this thing is, but I can be sure that these things belong to a kind of energy." No one can guess exactly how it came about, except by seeing it with their own eyes. Looking at the appearance, this kind of thing exists against the laws of physics, and the lower the temperature, the more dispersed it will be! ”

"On the contrary, if the temperature rises, even if it receives a little bit of infrared radiation from the human body, it will instantly glue in one place and liquefy and finally spontaneously combust! Thankfully, if this tomb had been discovered in the summer, everything standing around it would have been shattered in an earth-shattering explosion the moment the cave mouth appeared. ”

Sun Haibo: "Aren't these gases life-threatening?" Will it be toxic? ”

Zhao Baolai shook his head: "I don't know, I think Lao Meng may have discovered something, after all, he was the first to discover this substance!" But it seems that this thing should be cold, otherwise it wouldn't be distributed straight up and down, otherwise we would have been doomed a long time ago! ”

At this moment, Liu Meng shouted.

"Oops! Lao Meng's heartbeat slowed down! ”

It had only been three minutes, and when Liu Meng checked it again, his heartbeat had become extremely weak.

"How so?"

Liu Meng thought that he would be quiet, but he didn't expect to cause Lao Meng's life talisman.

Several people hurriedly returned to Lao Meng's side, but in just a few seconds, Lao Meng's heartbeat had stopped.

Meng Xiangshan passed away!!

"This ......"

"How so?"

"Lao Meng!!"

…

No matter how everyone shouted and called, Meng Xiangshan did not move, and his body temperature gradually cooled.

"Lao Meng!!"

Sun Haibo screamed, almost turning his back on his breath. His old partner left without saying a word, and he didn't even leave his last words!

"It's all me, if I wasn't in a hurry, Lao Meng wouldn't have ......"

Sun Haibo's voice was extremely dull, his five fingers were deeply buckled into the hard soil, and blood continued to flow out from the cracks in his nails.

Zhao Baolai and a few people picked up Sun Haibo.

"Old Sun, what are you doing here? You can't blame you for this in any way! Now is not the time to be sad, if you are not worth it for Lao Meng, you should explore what is in this, so that you can be worthy of Lao Meng! ”

--Bang--

Liu Meng slammed his fist on the ground, to be honest, his heart was the saddest, if he hadn't given Meng Xiangshan an injection, maybe this situation would not have happened.

He stood up and said, "Don't rob anyone, I'll take the lead, I want to see what is in this underground!" ”

Zhao Baolai grabbed Liu Meng's back collar in an instant.

"Are you crazy?! Whoever goes now will be burned by the flames! Won't you die in vain if you go on like this? … Come back! ”

Liu Meng broke Zhao Baolai's hand and said angrily: "You let go!" Loosen!! ……”

Sun Haibo: "Don't quarrel! Lao Meng will not die in vain! We're all calm and calm too! ”

Zhao Baolai sighed: "Go down now, don't say if you can avenge Lao Meng, I'm afraid you haven't understood what happened, and you will be buried in the fire!" ”

“…… We all want to avenge Lao Meng, an old partner for decades, he naturally won't die in vain. But if you want to get in, you have to know what the black gas is, and at least how to dispel it, at least so that it doesn't threaten our safety! If we go on so recklessly, we will be directly surrounded by flames and instantly turned to ashes, and the end will be worse than Lao Meng! ”

Sun Haibo: "In that case, what should we do?" ”

Zhao Baolai was silent for a moment and said: "I don't know what the situation is down here and what the geological structure is, so I can only put a few air bombs to see if the poisonous gas inside can be exhausted!" ”

A staff member dressed in blue nodded, "I'll leave this to me!" Two liquid-air bombs can completely expel hundreds of cubic meters of gas, if there is fog floating out, it proves that the interior has been emptied, if there is no fog coming up, then I am adding a few more rounds! ”

The air bomb is to compress the air in a metal container, and open the valve if necessary, because the liquid air is opened at an ultra-low temperature of more than 100 degrees below zero, no matter what the situation will occupy the bottom of the deep pit within a few seconds, so that hundreds of cubic meters of fresh air will be deposited for many years of gas from the bottom to the top of all discharge, and completely replace the air inside the space, this is the easiest way to ventilate, suitable for excavation work but not absolute.

Some objects, such as murals, cannot come into contact with the outside air or will be oxidized, but now this situation is not so much to care about, even if there are precious artifacts underneath, they have to be abandoned.

--Puff--

Two blue spherical air bombs were thrown into the borehole, and two muffled sounds were heard from afar, and black gas erupted like a stimulant.

So much so that a black air column tens of meters long appeared in the air, and the long air column held up the night sky, and the scene was very spectacular.

After ten minutes, the black gas finally disappeared, and puffs of white smoke emerged from the edge of the borehole, which was caused by the cold air liquefiing the surrounding water vapor.

The staff member who dropped the bomb smiled and said, "As expected, it was done!" ”

Sun Haibo and others were all inspired.

Zhao Bao glanced around and said, "I'll go down and take a look first, what is down here!" ”

Sun Haibo: "Don't fight at this time, set up the ladder, let's go down together, and take care of each other!" ”

Liu Meng: "Lao Sun is right, let's go down together!" ”

…

Everyone agreed to go down together, and all the people present were stubborn old men, and once the decision was made, it was difficult to change it.

After the fifteen-meter-long ladder was erected, everyone knew that the pit was so deep.

"How is this possible?"

"Everything will be clear down there!"

…

Zhao Baolai, Sun Haibo, Liu Meng and others were fully prepared, and like money strings, they climbed down the ladder one by one.

Zhao Baolai, who walked in front, first measured the temperature inside the drill pit and the content of toxic gases such as carbon dioxide, although carbon dioxide itself is nothing, but its content exceeds two percent, then people will suffocate to death, not poisonous, but better than poisonous gas.

"Everything is normal, it seems that the air bomb is working quite well!"

Now that they have been affirmed, everyone has also put their hearts at ease, and after being impulsive, they have calmed down, and no one is not afraid of death.

Five minutes later, Sun Haibo and others reached the bottom first.

--Syllable--

Sun Haibo first turned on the bright searchlight.

After a crisp sound, Sun Haibo and his friends were stunned.

"What the hell is this place?"

"Geologically, it's a miracle!"

“……”

I saw the surrounding Ruicai surging, the auspicious light turned into a Taoist practice, and the Milky Way fell down. After countless refractions and reflections, the huge space like an indoor gymnasium is dyed with a fairyland atmosphere.

So beautiful...

It felt like a crystal cave out of a two-stage glacier!

Zhao Baolai sighed in addition to sighing: "I didn't expect the beauty of the polar region to appear in such a place...... Nature is amazing! ”

After the first exclamation, the ensuing doubts appeared.

Zhao Baolai: "How can there be such a natural cave here?" It doesn't make sense! It seems that this is not ice, if you guess correctly, the surface of this cave is full of natural diamonds! ”

Sun Haibo: "How is it possible, although I don't understand geology, I also know that this situation simply can't form a crystal wall layer of such a scale!" ”

Liu Meng: "Maybe this thing is artificially glued!" ”

Zhao Baolai nodded: "I very much agree with this point of view!" It is conceivable that if it is artificially glued, I don't know how much manpower and material resources it will cost to build a project of this scale, and just finding these many diamonds is something that tens of thousands of people can't accomplish in a few lifetimes! ”

Sun Haibo sniffed it and wondered: "How can such a domineering poisonous gas be produced in this crystal clear space?" ”

Liu Meng: "There are so many things in the evil sect, I don't think it's strange if there is one more!" ”

Zhao Baolai shook his head: "Things in the evil sect must also follow the rules of nature, that black gas definitely does not appear out of thin air, and not finding the source does not mean that there is no ...... It seems that the source should be in the depths of this cave! If the speculation is true, then we are in trouble! ”

Sun Haibo: "Then we have to find out, at least we must know what this is, otherwise I'm sorry for Lao Meng's spirit in the sky!" ”

As he spoke, he walked to the hole in front of him.

Zhao Baolai: "Old Sun! ……”

Liu Meng sighed: "Let's not persuade us, let's go in with him, he is right, he didn't find out the truth, and he couldn't explain to Lao Meng after death!" ”

…

Three people took the lead, followed by eight or nine staff members.

With such a large number of people, after entering the cave, even if you walk hand in hand, you will not touch the walls on both sides.

This hole is much wider than you think!

If you look carefully in this cave, you can see one or two, Zhao Bao is right, there are traces of artificiality, although the diamond inlay is perfect, but through the diamond can be seen, the ground under the feet is paved with bluestone, and the surrounding walls are also made of bluestone, boxy, just like the road.

Although it is not known which dynasty the tomb is, it is certain that this is definitely a feature of the cemetery.

The staff who followed behind the three people also looked around with searchlights, in addition to surprise or surprise, although they were all high-achieving students in all aspects, and there were many experts, but there were not a few actual battles, especially to see such a scale of engineering.

Mo said that it was eight or nine people behind this, and even experts among geological experts such as Zhao Baolai were stunned by their amazing work.

So curiosity is what it should be.

So people are curious, and they will do something instinctive.

With so many diamonds that anyone wants to touch, especially for young women, jewelry is a huge appeal.

At the edge of the cave, a woman in her twenties, curious, couldn't help but reach out and touch the diamond-stained wall......

"Stop!!"

The expert who was taking notes on the side shouted loudly.