At this time, Li Longfang said:
"Desen, we are a bit passive now."
Zhang Desen asked:
"How to say?"
Li Longfang said:
"Look, we are being pursued by soldiers, and we don't know what we will encounter in front of us. Moreover, there are so many passages at the entrance of the cave. What if we get lost?"
And Zhang Desen said:
"Don't worry, I think we will be able to get out. As long as the wind blows, there is definitely a way out. If it doesn't work, we just need to carefully watch which side the oil smoke drifts to when cooking. It will be absolutely fine."
Li Longfang said with a headache:
"This is the first time I've been forced to a place like this. My past experience didn't work."
Zhang Desen said:
"Let's take a rest first..."
However, just as Zhang Desen was waiting for news, two gunshots were heard from a passage on the left, and then the rope stretched straight for unknown reasons. Everyone immediately used all their strength to pull the person on the other side back, and they heard something in the middle of the process. Explosion.
And surprisingly, it was very laborious to pull back, as if it was sucked by something. However, it was finally pulled back. Zhang Desen immediately asked several people to watch the passage in case danger suddenly approached.
Of course, only one person was pulled back in the end, but the family general seemed very calm, but he still seemed to be frightened by the experience just now. Zhang Desen really appreciates that he can still remain calm after such a thing. He will definitely not be a thing in the pool in the future. It seems that Zhang Desen will pay more attention to this general in the future.
At this time, after drinking some water to calm down his shock, the general said to Zhang Desen:
"Young man Wu Jieming, please give my regards to the young master!"
Zhang Desen said:
"Okay, no more need to say anything else, tell me what happened just now?"
Wu Jieming immediately replied:
"It's like this. We just found a hole at the top of the cave, but we didn't expect that a large upside-down plate suddenly appeared at the entrance..."
"Big plate? Does it look similar to these?" With that said, Zhang Desen turned on the computer and showed Wu Jieming the photos he had taken before.
Wu Jieming said immediately after seeing it:
"Yes, that's it. It's just that we looked from the bottom up, and we only saw one..."
Zhang Desen said:
"continue!"
Wu Jieming suddenly continued with tears in his eyes:
"A hole suddenly opened under that thing, and a very strong light emitted. We were all sucked up, but the villain was tied with a rope and was pulled back. The other brothers... didn't want to be caught, so they pulled The bomb on him went off..."
Wu Jieming burst into tears as he spoke.
Zhang Desen comforted:
"Don't worry, we will definitely take revenge."
At this moment, several screams came from the passage directly ahead. Everyone was startled, and just as they were about to prepare for rescue, they saw the investigation teams from the three channels in front running over with shouts. To their surprise, they were not five people in one channel, but seven people in the middle channel and four people on the left. , four people on the right, it seems that these three passages lead to the same place.
What is a bit alarming is that they were all bitten by mosquitoes. And those mosquitoes are actually 0.4 meters long. But there was no time to be surprised, everyone immediately helped them get rid of the mosquitoes, and the accompanying doctor immediately applied medicine to them.
Zhang Desen looked at these swatted mosquitoes and asked:
"Have you arrived at a place with particularly fresh air?"
After these people applied the medicine, the pain on their bodies eased a bit, and they heard this and said:
"Air? But we did arrive at a place where breathing is very comfortable."
Zhang Desen continued to ask:
"Oh, really? Is there any danger?"
These people replied:
"Except for these mosquitoes, we haven't encountered any danger for the time being..."
Suddenly, one of them seemed to remember something and replied:
Oh, by the way, when I got there, I felt like I was back on the ground. There was sunshine and dense forests, but there was no blue sky and white clouds, only the top of the cave. The sunlight seemed to be emanating from the cave wall. I don’t know why. Moreover, the animals there are very big, and we also saw dragonflies as big as eagles, which were very comfortable to breathe. "
Zhang Desen said:
"Okay, I understand. You guys should take a rest first. Your adventures are very interesting. Thank you!"
Several people quickly replied:
"Don't dare, don't dare..."
After Zhang Desen listened, he thought carefully. It seemed that they had encountered a huge underground world. What an adventure. And this underground world retains many ancient things. And the oxygen content is very high, otherwise it would be impossible to give birth to such a huge animal. The specific situation seems to need to be explored, but I wonder if this underground world is related to fear of humans?
At this time, Li Longfang on the side asked:
"Is this realistic? How could there be such a big beast?"
After hearing this, Zhang Desen replied:
"This is normal. I'm wondering if all this is related to fear of people!"
Li Longfang was stunned and asked:
"Is it related to fear of people? Why?"
Zhang Desen said:
"I think that although these hominids should not have experienced ancient times, they may be very nostalgic. If the appearance of these creatures can be proven to be related to hominins, it means that they miss the ancient earth environment very much, so they We built an environment underground to simulate the ancient times!"
Li Longfang asked:
"What does this have to do with the hugeness of these... creatures?"
Zhang Desen said:
"You may be used to the size of today's creatures. But you may not know that a long time ago, many animals were very large. This was due to the natural conditions at the time."
Li Longfang said:
"I still can't figure it out."
Zhang Desen said:
"In my universe..."
After speaking, Zhang Desen looked around, then lowered his voice to the level that only two people could hear, and continued to talk about the relevant content. The general content is:
Some researchers point out that the reason why such huge creatures appeared in ancient times is because about 200 million years ago, very violent volcanic movements broke out on the planet we live on. Due to this violent The volcanic eruption caused the entire earth to be covered with thick carbon dioxide, and an extremely severe greenhouse effect occurred on the entire earth.
It is because of this huge change that the entire earth is in a hot and humid state. In this state, various vegetations continue to appear and increase, and a large amount of oxygen is continuously released. During this period, The amount of oxygen is very abundant.
Due to the large amount of abundant oxygen, it provided indispensable conditions for the existence of large organisms at that time, and provided a large amount of food for many large herbivores at that time. When the food source was very sufficient, the size of those animals It is also growing continuously and finally reaches a peak.
From this aspect, the reason why animals were huge during that period was because they had very rich oxygen content and food sources. In addition, researchers pointed out that there were many differences in the environment, temperature, pressure, etc. in which giant creatures lived. Big relationship.
After hearing this, Li Longfang continued to ask:
"what about now?"
Zhang Desen continued to talk about what happened before, and the general content was:
Now as the earth's environment continues to change, the amount of oxygen contained in the atmosphere of the earth we live in has been decreasing. Now compared with the oxygen content during the life of those giant creatures, the oxygen content in the atmosphere now is reduced. 1.5 times.
Perhaps it is precisely because of some changes that have occurred in these aspects, coupled with the earth's disasters that occurred at the end of each period, that some large creatures have been extremely severely hit in terms of food sources, and thus cannot continue to survive. Smaller creatures survived.
After a long period of natural selection and elimination as well as the evolution of biological species themselves, various creatures that are not so huge have appeared now, and the earth is what it is now.
After hearing this, Li Longfang said:
"Although I don't understand it very well, it means that there is a place in the front that is very similar to the world a long time ago and it is completely different from the world now."
Zhang Desen said:
"You should understand it this way first!"
At this moment, the scouts from other channels also came back. What is gratifying is that the three passages to the north (that is, on the right at this time) have all found exits, and the passages are all wide.
However, Zhang Desen still planned to go forward directly, but he was no longer passive at this time, because he could go out at any time when there was a way out, so Zhang Desen decided to send people to guard the way out, and then lead the pursuers behind to the primitive underground forest in front to eliminate them. , if the pursuer is intercepted, it will be a different matter.
Try again to see if you can get to the Terror Base through that forest. If you can, evacuate from here after you are done.
Thinking of this, Zhang Desen ordered someone to call Zhao Chengming back from behind, and asked Zhao Chengming to take charge of the passage in the middle on the right, because according to the intelligence returned by the investigation, that passage was the largest. He also ordered the generals at the back to use the Liu family to guide Zhang Desen. The improvised bombs made from the collected information were used to bury the original passage with explosives, and would not detonate if there were no pursuers.
Otherwise, immediately blow up the passage you entered to block the pursuers. And immediately blew up the problematic passage on the left with homemade explosives. Since Zhang Desen used the explosive knowledge he learned as a special forces soldier, knowing how to explode can guarantee the results he wants.
Just thinking about it again, if there are no pursuing troops, it is better to let Zhao Chengming take command at this intersection. If the pursuing troops can be intercepted, just guard this intersection. For the rest, Zhao Chengming just needs to adapt to circumstances.
When everything was completed, Zhang Desen handed over 900 people to Zhao Chengming to complete the guard and response tasks. He led Li Longfang and 100 others towards the forest in front.
At the same time, Zhang Desen also thought that it might be because the Terrorists themselves were born on Earth, so they did not wear fully enclosed space suits. Their clothes were similar to the modern military uniforms in Zhang Desen's original universe, but they had more of a science fiction feel. So the weaknesses are easy to find and are not as difficult to deal with as the legendary aliens.
But at this time, the pursuers behind finally opened the passage. The fearful Chief of Staff of the Mountain Base, Dadu Kul, said excitedly at this time:
"We finally got through it. No matter how heavy something is, it can't compete with the anti-gravity device and laser excavator of my advanced intelligent creatures? You think so?"
Adjutant Dud Ross on the side responded and said:
"That's right, it's time for us to catch mice. I can't wait, hahaha."
"good……"
But before Dadukul finished speaking, a voice came:
"chief of staff!!!"
Then a terrorist soldier walked up to Dadu Kul. And as he came closer he continued:
"Report to Chief of Staff Kuhl that Chief Goba Shaov is looking for you and wants you to go to the command room immediately."
Dadukul heard this and said:
"Sir Xiaofu? OK."
Then, he turned to his adjutant Dud Ross and said:
"I'm going to do something. You guard this mouse hole. When I come back, we'll catch the mouse together."
"yes!!!"
At this time, Zhang Desen and others also arrived in the forest in front. But before Zhang Desen and the others had time to take a closer look at the forest, a huge tongue suddenly appeared in front of them and rolled down an ancient dragonfly flying in the air.
And that thing suddenly jumped out. Zhang Desen took a look and immediately recognized it. It was an ancient giant devil frog.
