After several days of detailed investigation, although no new evidence of a certain location was found at the site where the fragments were found, the investigation of the six suspected sites yielded new results. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 info Now, Zhou Xin is listening to the Voyager's report in the command cabin.

"This is followed by further investigative reports on six suspected locations." Voyager said.

At this time, the screen flashed, and a canyon appeared on it. It can be seen on the footage that this is a bottomless canyon, and the fracture marks of the rocks on both sides are still fresh.

"This is a detailed image of the first point."

Seeing the fresh traces of fractures on both sides of this canyon, Zhou Xin was slightly stunned, and then began to get nervous, "This canyon is caused by this global crisis." If the Vault had been built here, wouldn't it have been completely destroyed by this rift? ”

"You're right."

"What! Is it really here?! ”

"No, it's just that the crack in the ground can indeed destroy the shelter, but after the detection of the probe, there is no underground space near this crack, so the possibility of this is a shelter has been basically ruled out." The Voyager continued.

"Don't scare me." Zhou Xin breathed a sigh of relief, "This kind of thing has to be said first, if we are really here, we will not be busy in vain." The coordinates that I managed to find turned out to be destroyed, which is more disappointing than not being able to find it. ”

"The possibility of the destruction of the shelter is not ruled out, so you have to be mentally prepared, captain." The Voyager replied in a serious manner.

"......" Zhou Xin was speechless for a while, "Okay, let's not talk about this topic, since this point has been ruled out, what will be the situation at the next point." ”

The screen changed from a vertical canyon to a horizontal canyon.

"......" Zhou Xin was speechless for a while, "The second point won't be in this canyon." ”

"You're right, the second point is on this canyon. However, after investigation, no trace of the existence of underground space was found in this place. The Voyager said it in one go.

"Whew~" Zhou Xin breathed a sigh of relief, and then he asked again, "Won't the six points be on the canyon?" Then you just tell me the results, don't say them one by one. ”

"No, this ship is just listing the points that have been excluded first, if you don't like it, captain, this ship can show you the more likely points first."

"Forget it, let's show it in the arranged order, and the next point." Zhou Xin said helplessly.

The picture changed again, this time it was finally not a canyon, but a plain terrain.

"It's finally not a canyon." Zhou Xin said, "What is the situation in this place? ”

"This place has traces of the existence of underground space."

"Oh, no." Zhou Xin didn't react at first, "What? Is there an underground space? Is it that refuge? ”

"Unfortunately, the probe found a cracked entrance to this area, and upon further investigation, it was revealed that this was just an ordinary underground space with some household items stored inside, not the shelter we were looking for."

Zhou Xin was disappointed again, "Alas, Bai is happy, let's make the next point." Zhou Xin said weakly.

Another plain appears on the screen.

"What's going on in this place?"

"This place is a normal plain, and the probe didn't find anything out of the ordinary."

"That means this place can't be a refuge anymore."

"That's it."

"Forget it, let's make the next point."

A plain terrain continues to appear on the screen.

"The probe found traces of a large underground space under this plain, but after further exploration, the ship has not found where the entrance to this underground space is." At this time, the Voyager spoke first.

"Oh? Does that mean this might be a refuge? Zhou Xin hurriedly asked.

"There is a certain possibility, but the ship can't be sure when it doesn't enter this space." Voyager replied.

"Continue the detailed investigation and find the entrance to this place as soon as possible." Zhou Xin added, "Since we haven't found the entrance yet, let me take a look at the last point." ”

A small hill bag appears on the screen.

"Oh?" Seeing the hill bag, Zhou Xin was stunned for a moment, "I thought that all the mountains on this planet had collapsed or cracked, but there was still such a complete hill pack." What was found on this mountain pack? ”

"The mountain is in the middle of the plate and is located one of the farthest places from the shock wave. At the same time, the height of the mountain is only 500 meters, and the mountain is almost entirely made of quartz, and the structure is hard. These are the reasons why the mountain has survived a global catastrophe. Voyager explained, "After the probe detected a large underground space was discovered under the mountain. The entrance has been found, somewhere at the foot of the mountain. Moreover, this underground space was built in such a stable terrain that the ship suspects that the underground space itself was built to avoid disasters, and its function should be similar to that of the nuclear shelters that humans once built. ”

"So, it's likely that this is really the place where the coordinates point to?" Zhou Xin was a little excited.

"There's a good chance, but it's also possible that this is one of the other shelters that survived." Voyager analyzed, "As for whether it is the location pointed by the coordinates, we still need to enter this underground space for a detailed investigation." But there is still a question about how to open this entrance. ”

Zhou Xin thought about the scene when he opened the underground research institute last time, "Do you mean how to solve the problem of air leakage?" Wasn't this one solved last time? It would be nice to build a makeshift air-lock outside. ”

"In theory, that's true. However, this underground space is too large, and if there is a problem with the temporary air-lock, it will have an irreparable impact on the environment of the entire space. Most importantly, there is a huge possibility of life in this space, and if something goes wrong, it will pose a huge threat to life in this underground facility. Therefore, the ship is evaluating in detail the methods of opening this underground space. ”

"Then use two overlapping air-locks." Zhou Xin thought for a while, "Double insurance should be possible, and the materials should not use the building materials of the temporary space last time, use high-strength composite materials to build this space, and it is better to waste some materials than to protect the safety inside." ”

"Evaluating the feasibility of the scheme, it is expected that the safety of the scheme will reach 99%, and in order to prevent accidents, it is recommended to use a triple space with a wall thickness of more than 30 cm. Replenished. ”

"Okay, then do it."

Three air-tight rooms with a thickness of 30 centimeters and a 3-metre-thick air-lock had to be removed from the floor before they could be built. Therefore, it was not until three days later that the construction was finally completed.

"It's finally done, and we can start working on opening the entrance." After listening to the Voyager's report, Zhou Xin asked.

"There's a little more problem before opening the entrance."

"Huh? What's the problem? ”

"This ship estimates that there is a great possibility of intelligent life in this civilization in this underground space, so I hope that you can send Chang'e down to assist in the communication work."

"Can't I really go down myself?" There was a hint of pleading in Zhou Xin's tone.

"For your safety." The Voyager replied solemnly.

"Okay, okay, then Chang'e, you can go down for me and communicate with them first." Zhou Xin said a little helplessly.

"Understood."

A few hours later, Chang'e's voice came from the communicator: "Report to the captain, Chang'e has arrived at the entrance of the underground space, and then the machine will display its field of vision on the screen in real time, and you will also hear all the conversations of the machine, and you can also instruct the machine on what it says on the ship." Now that the robot is ready to open the entrance, please instruct. ”

At this time, a scene of a small room appeared on the screen in front of Zhou Xin, and there were several engineering robots standing next to it, which is the image that Chang'e sees now.

"Let's get started."

The engineering robots in their field of vision began to move, and they walked up to a wall, and then, as before, began to use their tools to try to open it.

At first, the robot carefully used small tools to sawn through the walls to prevent any problems, but it took a long time to cut a small incision, and according to Chang'e's report, the hole had not been drilled through. They changed to a large set of tools to force the entrance open, only to hear a roar and the drill bit burrowed deep into the wall, but until all the bits were in the wall, the robot did not report that they had penetrated the wall. In desperation, the robot could only dig through part of the wall first to dig deeper.

Zhou Xin saw that the robots first spent more than half an hour drilling through about half a meter of ordinary rock formation, and then what was revealed was a concrete-like wall. Seeing this wall, the robots changed tools and began to dig up, digging for nearly two hours, passing through the concrete wall that was more than a meter thick, and what appeared in front of them was a wall of alloy.

"It's a really sturdy structure." Zhou Xin sighed, "I am now beginning to believe that this is a shelter, and this is the first time I have seen a wall made of three different materials." Look at this material, this is an alloy wall, can it be opened? ”

At this time, Zhou Xin saw an engineering robot go up with a tool, the roar of the machine lasted for about 5 minutes, and the robot removed the tool. On the screen, Zhou Xin saw that there was only a shallow trace on this wall.

"It looks a little difficult." Zhou Xin was a little distressed, "Is there any way?" ”

The robot put down the machine and picked up a jar, and there was a long nozzle on the jar, and the robot pointed the nozzle at the door, and Zhou Xin saw a strong fire light light up. After a while, the part of the wall that touched the flames began to melt.

"Looks like it works." Zhou Xin was a little happy.

At this time, the Voyager poured a basin of cold water, "At this pace, it will take a long time to open this wall. ”

"At least it can be opened, don't you, slow down." Zhou Xin said, "Since it will take a lot of time, I'll go and rest first, and then come and inform me when it's opened." With that, he walked out of the command room.

It wasn't until six hours after Zhou Xin left the command room that the Voyager came with the news that it had successfully opened the passage. and Zhou Xin, who was bored in the entertainment cabin, hurriedly ran back to the command room.

"Is it finally open? Chang'e isn't here, I'm almost bored to death. As soon as he entered the command room, Zhou Xin complained.

"After six hours of work, the engineering robot managed to open a gap, and the thickness of this alloy wall actually reached one meter, which was not expected by the ship, which is why the work took so long." The Voyager explained.

Zhou Xin looked at the screen, and the location of the alloy wall had disappeared, replaced by a large black hole.

The Voyager continued, "However, there was a problem when the hole was opened. ”

"What's the problem?" Zhou Xin carefully observed the entrance of the cave.

"When the gap was first opened, no gas rushed out."

"What?" Zhou Xin came back to his senses, "There is no gas, can it be said that ......?"

"Maybe the other side has also built an isolation space as a buffer." The Voyager added.

"Let's hope so." Zhou was a little worried.

"Report to the captain, the passage has been opened, do you need to start exploring." At this time, Chang'e's voice came from the communicator.

"Go, go, go." Zhou Xin stood in front of the command platform and subconsciously waved his hand.

The field of view on the screen began to move forward, and this was when Chang'e began to enter the gap. Passing through that gap, a passage appeared in front of Zhou Xin's eyes. This passage is about 3 meters wide and 2 meters high. What is puzzling is that there is no light in this passage. In the distance, the passage is so long that the robot's searchlight can't reach its head.

"Why don't you even have lights?" Zhou Xin was a little puzzled, "There should always be lights in the passage." There was a hint of disappointment in the words.

"Maybe it's to save energy." The Voyager reassured.

"Let's hope, Chang'e, take a look at the situation around the passage."

The camera turned slightly, and the wall on the side of the passage began to appear in Zhou Xin's field of vision, the wall was very clean, only a strange symbol appeared on the wall, and there were two words below the symbol.

"This is a sign of the safe passage of this civilization." Before Zhou Xin could ask, the Voyager replied.

"Oh, let's go ahead then."

The camera pans from one wall to the other, where there is a straight black pipe that runs straight into the interior of the passage, branching out at short intervals to spread upwards. At the end of the branches, there is an oblate object attached to the wall.

"This must be an energy channel, maybe it's a lamp?" Zhou Xin speculated to himself.

The camera pans to the top of the passage again, but the top of the passage is snow-white, and there is not even a sign or anything. The camera then returns to the front of the passage and begins to move forward. After moving about a hundred meters along the slightly downward sloping passage, a gate appeared in front of the camera......