"River map. Pen, Fun, Pavilion www.biquge.info" Voyager spat out two words.

"Hetu?" Zhou Xin repeated, and then he thought for a long time, and finally suddenly realized, "It turned out to be Hetu, I think it's so familiar." ”

"What's Hetu again?" Ralph asked.

"I don't remember that exactly, I just know that there is such a thing, Voyager, you can explain."

"This is the predecessor of the Bagua Map...... "Voyager explained to Zhou Xin the origin of the Hetu.

After listening to the Voyager's explanation, Spred asked, "Then now press these buttons according to the image of the river map, and the door will open?" ”

"Let's try it, I'm not sure."

So Zhou Xin motioned to the detector to draw this pattern on the door according to the shape of the river map, and at the moment when the detector completely drew the river map, Zhou Xin saw that the picture on the screen shook slightly, and there was a rumbling roar, and the crack slowly became larger, and the door was successfully opened. Zhou Xin motioned for the probe to fly a little more so as not to be taken away by the open door, and just a moment after the probe flew up, the roar disappeared, and a black hole appeared on the screen.

Zhou Xin and Spred glanced at each other, and then Zhou Xin motioned for the detector to go to the cave, after entering, under the light of the detector, Zhou Xin and they found that this was an ordinary passage, the same as the passage they entered at the beginning, there was nothing, the only difference was that this passage was much smoother than the previous passage, and after advancing along the passage for about 20 meters, another gate appeared in front of them.

"Are you going to open the door again?" Zhou Xin said helplessly, "Don't show up a way to open the door that I don't even know." After complaining, Zhou Xin motioned for the detector to look for a switch on the door.

This time, however, there was only one irregular pattern on the door that Zhou Xin had seen at the beginning, and the detector didn't find any switches on the door, which surprised them a little.

"Is it like the first alloy door, the switch is hidden on the surrounding wall?" Zhou Xin then motioned for the probe to search the surrounding walls, but this time, the probe still found nothing. This made Zhou Xin and the others very surprised, and Ralph said in surprise, "How can we get in without a switch, it can't be on the ceiling this time." After listening to Ralph's words, Zhou Xin really asked the detector to search the ceiling, but this was obviously impossible.

Looking at the door without opening and closing, Zhou Xin and they were collectively puzzled, Zhou Xin motioned to the detector to approach the door again, wanting to carefully find out if he had just ignored something, after looking for a while, he found that there was indeed nothing else on the door except for the strange pattern, so Zhou Xin motioned to the detector to knock on the door, wanting to see if there was something hidden on the door, but to everyone's surprise, the detector knocked on the door, and the door opened inward.

Zhou Xin and Spred looked at each other, Spred glanced at the screen in disbelief, then he looked at Zhou Xin and asked in surprise, "This is open?" ”

"This is open?" Zhou Xin repeated, then he turned his head to look at the screen and found that the door was indeed open,

"Open—open." Ralph stammered.

They were all shocked for a while, and then finally accepted the fact that the door had been opened, Zhou Xin motioned for the probe to enter the gate, and while the probe was advancing, Zhou Xin muttered: "What, it's so simple, it took so much time to find the switch, but this door is not locked." ”

Spred also said helplessly next to him: "Who would have thought that this door is not locked. ”

Ralph also shouted on the side: "What are you doing, it's so difficult to open the door in front, why is it so easy to get here, what are they thinking?"

"Who knows." Zhou Xin reluctantly continued, "Forget it, let's not talk about this, let's see what is inside." As he spoke, Zhou Xin looked at the screen.

At this time, the probe had already walked into the door, and to Zhou Xin's surprise again, after entering the door, Zhou Xin and the others found that there was actually light in this room. When the door was just opened, the screen of the detector lit up all of a sudden, as if it had been attacked by a flashbang, and just when Zhou Xin thought that the detector was attacked again, the screen returned to its original state, so Zhou Xin and they saw this room as bright as day.

Although Zhou Xin and the others felt very surprised, the accident of opening the door before had already scared them, so the appearance of this accident did not surprise them much. Then, Zhou Xin motioned to the probe to observe the surrounding situation.

Through the lens of the detector, Zhou Xin and they saw that this is a circular hall, the diameter of the hall is about twenty meters, this hall is very empty, Zhou Xin They did not find anything in the hall, however, although nothing was found in the hall, but on the wall of the hall, Zhou Xin and they saw the existence of a row of doors, Zhou Xin counted slightly, the number of doors was about thirty, and these doors were evenly distributed on the entire circular wall, Except for the door where the probe came in before, the other doors were tightly closed, and Zhou Xin didn't know what was inside the door.

Letting the probe look around, Zhou Xin breathed a sigh of relief, "It looks like we've finally arrived at the place, we should really be in their underground base." ”

Spred also came back to his senses, "If nothing else, it is, but why is the structure here so strange, the circular hall is a bit of a waste of space." ”

"Maybe it's their unique way of building." Zhou Xin was noncommittal, he subconsciously looked at the ceiling, trying to find the location of the light source in this hall, and found that the entire ceiling of this hall emitted a soft white light, which made Zhou Xin feel a little surprised, thinking about the scientific and technological level of this civilization, he felt that it was taken for granted, so he didn't say anything.

Following Zhou Xin's line of sight, Spred and the others also looked at the ceiling of this room, so they also saw the anomaly of the ceiling, Ralph said in surprise: "The whole ceiling is a lamp, it's really a convenient way to illuminate, how did they do it?" ”

Zhou Xin replied: "Actually, we can also do this lighting method, but this way is actually a waste of energy, so we don't use it, I'm very curious how they use this lighting method to illuminate." ”

After saying that, Zhou Xin was not ready to answer this question, he motioned for the probe to open one of the doors. The probe walked to one of the doors, pushed the door open, and at the moment of opening the door, Zhou Xin saw that the room behind the door lit up.

"Trigger switch?" Zhou thought in confidence, and then he looked into the room. He saw that the whole room was fan-shaped, and like the hall outside, the ceiling of this room emitted a soft white light, and on the curved wall facing the door, there was a very large screen, and a pot of plants was placed on the ground on either side of the screen. Leaning against the wall on the left side of the door is a bed, while on the right wall is a desk, and next to the desk is a bookshelf with some decorations, but apart from these, there is nothing extra in this room.

Looking at the furnishings in this room, Zhou Xin said: "It seems that this is the living area, but the strange thing is that we have all arrived here and have not encountered the creatures of this civilization, could it be that the people of this civilization have also encountered any disasters?" ”

"It doesn't look like it's going to be out there." Spred replied, "It doesn't look like there's been a disaster." ”

Zhou Xin nodded, "Let's investigate here first, hoping to find out the reason for their disappearance." ”

As a result, more probes entered the hall and began to survey each room.

Since there weren't many rooms, it didn't take long for the probes to complete their survey of all the rooms and summarize all the probes' reports. Zhou Xin found that the rooms around this hall were similar to the rooms he saw at the beginning, and there were no special rooms, but although there were no special rooms, the probe found a passage behind one of the doors, which was about 10 meters long and had another door at the end. After discovering the passage, Zhou Xin did not rush to explore the passage, but asked the probes to complete the investigation of this hall first.

After completing the investigation of the hall, Zhou Xin said to Spred: "It looks like an ordinary living area, there is nothing out of the ordinary. ”

Spred nodded, agreeing with Zhou Xin's opinion, and then he continued: "But I always feel that this living area gives me a very strange feeling, and I always feel as if something is missing. ”

"It's personal items." Zhou Xin said casually, "Actually, I have long begun to feel strange, although the furnishings in each room here do give people the feeling of living quarters, but I browsed the furnishings of all the rooms a little, and found that in these rooms there is not even a single personal item except for the normal furnishings. These rooms seem to have been kept in a newly renovated state, and there are no traces of life activity. ”

After listening to Zhou Xin's words, Spred glanced at the screen, and then nodded, "Yes, that's how it feels, the room is so tidy, there is no trace of life at all, no wonder I thought it was weird just now." ”

"How is that possible?" Ralph asked, "Is it true that this base was never activated?" ”

"It's unlikely." Zhou Xin said suspiciously, "If there is a new base, this civilization will guide us to come and do something." He thought about it for a moment, but found that he couldn't get the point, so he continued, "Forget it, let's continue to explore this base." ”

So, the probes walked out of the various rooms, and after assembling, they made their way to the newly discovered passage. Walking to the door at the end of the passage, a detector tried to push the door open, but the door was actually pushed open, and when the door was opened, a new room appeared in front of Zhou Xin's eyes.

The room was not very large, about four meters long and two meters wide, and in the middle of the room was a long table with something similar to a monitor, and after discovering something like a monitor, Zhou Xin motioned for one of the probes to go to the table and try to operate it. In addition to the monitor, there were several small objects on the table, but Zhou Xin couldn't tell what they were for the time being. So they continued to inspect the room, and when they looked around, they saw that there was nothing else in the room except for a potted plant in the corner. Then they turned their gaze to the walls of the room, which were bare, and the rest of the wall was covered with regular patterns, except for a painting on the wall behind the table that Zhou Xin had seen several times. They continued to move their gaze upwards, the wall of the room was only about one and a half meters high, which seemed a little short compared to the height of the ceiling of five meters, seeing this, Zhou Xin motioned for one of the probes to fly over the wall, wanting to see what was behind the wall.

Just after the probe flew over the wall, the scene that appeared on the screen stunned Zhou Xin and the others.

From the perspective of the high place, Zhou Xin and the others saw that behind the wall was not a small room they had envisioned before, but a large space that was connected together, and this space was in a perfect circle with a diameter of more than 100 meters. The circle is clearly divided equally into nine parts, and there is a clear dividing line between them. Eight of the sections are evenly divided into eight sectors, and one section is a square of about 30 meters in the middle. The eight fan-shaped areas were also divided into small rooms of different sizes, and due to the distance and the obstruction of the walls, Zhou Xin and the others only saw the furnishings of a few nearby rooms, which were basically similar to the furnishings of the room they entered at the beginning.

Looking into the distance, Zhou Xin and the others saw a huge statue placed in the middle of the circular square in the middle, because the distance was too far, they could not see the specific details of the statue, but such a large statue was placed in such a conspicuous place, which attracted Zhou Xin's attention. So, Zhou Xin ordered the other probes to start investigating the hall, and at the same time signaled the flying probe to fly towards the square in the middle.

Flying to the edge of the square, Zhou Xin and they saw the furnishings on the square, the edge of the square is close to the surrounding fan-shaped part of a circle of small plants, in the plant circle there is a circle of stone benches, the stone benches are then inside is the empty square, the ground of the square is paved with ordinary marble, the ground is not very smooth, there is a little unevenness. They looked into the middle of the square, where there was a pedestal about half a meter high, and a circle of plants was placed around the pedestal, and on the pedestal stood a humanoid statue, the statue was very tall, and its head was almost up to the ceiling, because of the distance, they could not see the specific appearance of this statue, so Zhou Xin motioned to the detector to approach the statue.

As the detector gradually approached the statue, Zhou Xin and the others gradually saw the appearance of the statue clearly......