Professor Chen crawled in the small space for half an hour, sweating and panting when he joined the Zhang Union.

Zhang Gong sat in front of the fork and looked at Professor Chen, who was sweating profusely, and pulled him to sit down and said: "Old Chen, there are actually two forks here, and there is one in front, I went up to see this before you came, this is not high, it should also be a circulating space, and the other one feels different, there may be surprises." ”

"Oh, you guy has a bad stomach!" From the first time he saw Zhang Gong's smile just now, Professor Chen secretly thought in his heart that this guy must have made a discovery, otherwise he wouldn't be stunned. As an old partner for so many years, he also knows Zhang Gong too well, and always wants Professor Chen to praise him more behind his back. So Professor Chen asked, "Look at what you can, you went up to the fork in front?" What do you see? ”

"I went up, but I didn't see anything, but it didn't feel the same."

"Feelings? You wouldn't say it was cold again, would you? ”

"Those who know me, Lao Chen! It is with the feeling of coldness! ”

"So what are you waiting for? Just go up! ”

After crawling forward for more than two minutes, another fork in the road appeared. After Zhang Gong climbed up in front of him, he dragged Professor Chen up hard, and after the two found a slightly higher place to sit down, Zhang Gong gasped and said: "Lao Chen, I really shouldn't let you come over, I should let Lao Zhu and them come, you have poor physique, and you are about to become a burden." ”

"You're not much better, hurry up and adjust your breath, don't gasp, you do feel the chill from the air here."

"Yes, or how dare you alarm your old man?"

"Before you get inside, let them all come quickly, or if anything is found on it, it won't be clear."

After speaking, Professor Chen intermittently communicated the discovery here with Feng Weiguo and Zhu Gong outside through the walkie-talkie, except for Zhu Gong and others who were still left to continue to do support, everyone else was led by Feng Weiguo and came through this escape route.

After Feng Weiguo and the others came over, he looked around and said: "Professor Chen, the relay station will arrive at noon, and the specific technical requirements Zhu Gong said that he knows, and he will arrange it, the walkie-talkie signal just now is very unclear, and if we continue to move forward now, it will mean that we will lose contact with the outside." ”

"It's okay, I'll tell Zhu Gong first, let him rest assured, we will communicate on time at six o'clock in the afternoon, maybe we will go out earlier; Now you turn off all the walkie-talkies, save electricity, the same goes for the headlamps, save a few, I'm afraid we won't go out for a while. ”

At Professor Chen's request, two-thirds of the team members' headlights were extinguished.

As the team continued to crawl, everyone felt more and more cold, and they all had a feeling of weakness in their legs and feet. Finally, the rope around Zhang Gong's waist came to an end. After Zhang Gong untied the rope and found a place to lasso, he climbed to the exit with everyone. Zhang Gong lay at the exit and sighed and looked out, he really didn't know if he didn't know, he was startled when he saw it, what appeared in front of him at the moment was a world full of ice, and under the illumination of the light, the thick ice hung with colorful light. He beckoned everyone to climb out of the cave and found out that the hole they climbed out of was in a mountain groove, very hidden.

Professor Chen took out the rope from his backpack, looked at the distance from the ground, made a soft ladder and found a place to fix it, and then went down the rope one by one.

In the cold cave, everyone was excited and nervous, and they were all quietly discussing with each other. Feng Weiguo asked puzzledly, "Professor Chen, why is there ice here?" The temperature outside is about 26 degrees, even in winter, the ice will not be so thick, although the caves on the side of the mountains have occasionally seen the phenomenon of ice, but they can't reach this level. ”

"Hehe, this place is almost isolated from the outside world, the air in the cave is not convective with the outside world, so that the environment here has been in a clammy and cold state, and thus creates an absolute low temperature environment, the dripping water seeping out of the small stone cracks on the mountain, in the low temperature state condensed into ice, these ice after hundreds of years or even thousands of years of expansion before this wonder appeared; In addition, the geological wonder also has the possibility of chemical factors, that is, in the process of crustal movement, the endothermic material is squeezed to the bottom of the cave, in the relatively closed environment of the cave, this will also freeze, this principle is not too complicated, and the condenser conversion of the refrigerator is almost the same, heat absorption and heat insulation, to meet the conditions to basically meet the requirements of icing. ”

"Can there be an ancient tomb in such an environment?"

"Yes! And it will be more likely, such an environment is more suitable for the storage of corpses, and the corpses can be guaranteed without the use of embalming methods. ”

After wandering around for about 10 minutes without a purpose, Professor Chen saw that everyone was almost cold, so he decided to close the team in advance, with Zhang Gong taking the lead and his own palace, and going back like this.

After returning to the Hades Temple, Professor Chen said to Feng Weiguo: "Director Feng, now we will move forward in this direction, you will arrange the power supply and monitoring later, now you need these supports and follow-ups." ”

"Okay, I'll arrange it right away, so how do we arrange work in the afternoon?"

"The soldiers are divided into two ways, continue to advance along this passage all the way, see where the exit is, and go all the way into the ice cave just now, where you should find it."

"Well, I think if you keep going all the way to the edge of the mountain, since the air flow is obvious, it must be directly or indirectly leading to the outside."

"Yes, so we need to know where the exit leads, and analyze whether people from the outside can come in through there, whether it poses a threat to it, and so on."

"Okay, then I'll arrange monitoring and electricity now, and then let the bureau quickly purchase a batch of down jackets, cotton shoes, compressed dry food and other materials and send them over, otherwise I really can't stand it when I go in."

"Okay, we'll all take a lunch break in the afternoon, and we'll go in after we get our spirits up."

While Professor Chen and the others were still resting, Chen Zhijun returned from running errands in the city. After listening to Zhu Gong's introduction of the discovery inside, he asked worriedly: "Uncle, if it's very cold inside, will it still be dangerous?" ”

"The danger factor in the cold cave is still quite high, and in addition to environmental factors, there will be many unexpected things."

"Oh, what would it be, for example?"

"For example, the traps are relatively intact, and even some of them are made of ice, which are often impossible to prevent; In addition, in a low temperature environment, people's thinking and body reactions are slow, which is the most worrying. ”

"Okay, thank you, uncle, you can work hard to support it, I will arrange it now, and I will also bring a few people in to help you."

After speaking, Chen Zhijun hurriedly ran to the headquarters and found Lao Ma to explain like this, and in about ten minutes, a team of eight migrant workers went up from the mountainside with big bags and small bags.