In the apocalypse, Charlotte has experienced this situation more than once.
In fact, in such a long and narrow passage, once the air flow changes, gusts of wind will easily arise.
However, after the door is fully opened, a breeze can still flow out from inside.
This shows that there should be air inside the pyramid, otherwise such obvious convection cannot be formed.
Many very well-designed historical monuments can do this.
They look like closed buildings from the outside, but they can ensure air circulation inside.
Charlotte once again affirmed that this building was unusual, with the word "technology" written in capital letters everywhere.
She was the last one to enter the passage. Behind her, Eric and Zhao Cong were always looking in this direction.
There is no light source inside the pyramid. The further inside, the darker and more oppressive it becomes.
When they were outside the pyramid just now, the natural light flowing down from the top of the mountain would dilute a lot of the urgency and depression, allowing them to temporarily relax for a moment.
But since entering the pyramid, everyone has to tighten every string.
People from Search and Rescue Team 3, led by Zhang Lianping, kept walking inside.
Finally, when he was far enough away from the door, the light behind him was completely invisible.
Eric and Zhao Cong were still standing at the door, looking at the inner passage that had turned dark again.
Seeing that there didn't seem to be any emergencies inside, Zhao Cong said to Eric next to him: "It's almost done. You should quickly return the same way and find a place with signal to contact the head."
Eric just looked back and said, "Okay..."
However, before he finished speaking, there was another noise from the pyramid.
The slight sound of gears turning indicates the re-operation of internal mechanisms.
Suddenly, Zhao Cong and Eric both stopped talking and looked towards the pyramid.
I saw that the metal door that was originally open was slowly closing at this moment!
After being stunned for a moment, both men immediately ran towards the metal door, trying to prevent the pyramid door from closing.
However, the change happened so suddenly that just the two of them could not stop the strong metal door.
Eric thought for a while and said immediately: "Do you still remember which two characters Charlotte pressed just now?"
Zhao Cong understood immediately and said immediately: "Remember, come, let's open this door again!"
Although Zhao Cong didn't know this kind of text, when he was named by Captain Zhang to help, he stood next to Xia Luo. Even though he was separated by a certain distance, he could still clearly see which character she pressed.
Zhao Cong is not weak in professionalism in this area.
Therefore, Eric and Zhao Cong, both of whom didn't talk nonsense, immediately separated the two sides of the metal door, preparing to press the words "True" and "Reason" again to reopen the door.
"Are you ready? I'm going to count." Zhao Cong asked Eric.
Eric gestured for him to start.
So, Zhao Cong opened his mouth to count: "One."
Both people raised their hands to the designated positions and took their positions.
"Two." The two people prepared again, and their fingertips accurately touched the two characters.
"Three!" Using their fingertips, they pressed the characters at the same time!
However, something unexpected happened.
Different from before, this time, Zhao Cong failed to press the characters smoothly.
The characters seemed to be stuck and I couldn't press them at all.
Zhao Cong and Eric looked at each other, and both saw doubts in each other's eyes.
Especially Zhao Cong, he couldn't understand the situation at this time.
When I worked with Charlotte to trigger the mechanism just now, it was effortless to press this character!
For this reason, the two counted again and pressed again, but the result was still the same.
"What's going on? It's obviously these two characters..." Zhao Cong said in confusion.
The current situation made him wonder if he had misidentified the characters.
But it had only been a while, how could he admit his mistake! It’s not like your memory deteriorates as you get older!
Next to him, Eric looked thoughtful.
He looked a little heavy and quickly analyzed the situation in front of him.
Seeing this, Zhao Cong simply stopped pressing the characters like him.
"What should we do now? I don't know if this door can be opened after it is closed." Zhao Cong said.
Eric thought for a while and then said: "It may be that the mechanism itself has a time limit, and this door can only be opened within a limited period of time. Or, it may be that the time for us to activate the mechanism is wrong."
Although Zhao Cong is a very experienced soldier, he is not as good as Eric in terms of quick thinking.
"Why is the timing wrong? Not long has passed since just now. Moreover, everything we did is in line with the previous steps." Zhao Cong said in confusion.
Perhaps, there are some details that he has missed?
Recalling the various operations of that intern Xia Luo, everything was unexpected, Zhao Cong suddenly felt that maybe there were some unusual details?
Eric also thought: "Among all the factors, there may be some tiny factors that we have ignored, such as... time."
Eric's ability to analyze intelligence was excellent, and he soon made new associations.
Based on what Charlotte just said, if "light" is an important factor, then "time", which is closely related to "light", also needs to be taken seriously.
The light in nature, in a sense, follows time.
From Charlotte's analysis just now, we can know that the timing for the pyramid to activate its mechanism must be when the natural light is very strong.
So, in the designer's thinking, will there be relevant limiting conditions deliberately set?
The most intense natural light time of the day should be at noon.
Eric analyzed that maybe even if other conditions are met, if there is a deviation in the time interval, the door cannot be successfully opened.
Eric looked at the time on the optical computer again. It was already afternoon.
Perhaps, only the period of time just now meets the conditions for activating the door.
It is precisely for this reason that even if they press the switch in the same way now, they cannot activate the door - the restart fails.
After all, according to Charlotte's inference, the people who built this pyramid were very persistent in pursuing "truth" and "light".
Of course, these are just Eric's derived inferences based on Charlotte's speculations.
"Time? Are you saying there is any problem with time?" Zhao Cong asked from the side.
Compared with Eric, although Zhao Cong has been in the army for a long time, he is not the intellectual leader in the team.
Eric could figure things out in one go, but Zhao Cong had a harder time understanding them.
(End of chapter)
