"Let's hope this topographic map is no more than 10,000 years old. Pen ~ fun ~ pavilion www.biquge.info" Zhou Xin said.

As soon as Zhou Xin finished speaking, the DNA topographic map on the screen coincided with the ever-changing topographic map, and the two overlapping topographic maps formed a very complex pattern, and some of the lines on the pattern were still moving. After a minute or so, Zhou Xin saw that the original complex pattern on the map had disappeared, and the topographic map of the planet had reappeared in front of him.

"After comparison, the similarity rate between this DNA topographic map and the terrain of the planet from 4,500 to 5,500 years ago has reached 98%, and it can be basically determined that this topographic map was drawn at that time."

"Five thousand years ago?" Zhou Xin held his chin and thought, "It's really a distant era." After a pause, he continued, "Are there any unusual spots on the map, other than the same place?" ”

"After comparing the maps of the entire drawing period, the ship found that there was a point on the DNA topographic map that could not correspond to the actual topographic map in any way." Voyager replied.

"Oh? Which point is it. ”

A DNA topographic map reappears on the screen, but there is a place on the topographic map that is circled by a red circle.

"Can you determine where this point corresponds now?"

The Voyager was silent for a moment, then drew a circle on the topographic map, "Due to errors in terrain calculations, this ship can only delineate an approximate range. ”

Looking at the circle on the map, Zhou Xin asked, "How big is the scope of this circle?" ”

"The radius is about a hundred kilometers."

"A hundred kilometers?" Zhou Xin repeated, "This range is not very large, let the probe go to this area to investigate and see what can be found." ”

"Understood, the ship is mobilizing nearby probes to the location to investigate. The nearest probe is expected to reach the target location within 15 minutes. ”

Fifteen minutes later, the probe reached the periphery of the marked range, and the image captured by the probe appeared on the screen.

What appears on the screen is a long mountain range, which is not very high from the screen, but it stretches a long distance. There are not many plants in the whole mountain range, only a few trees grow out of the crevices of the rocks, and in many places a large number of blue-gray rocks are exposed, making the mountain very barren.

Before Zhou Xin asked, Voyager reported the preliminary measurements of the probe, "This mountain range is between 1,500 meters and 2,000 meters in height and more than 100 kilometers in length, and the composition of the entire mountain is speculated to be marble." ”

"It's an ordinary mountain." Zhou Xin touched his chin, "Let the detector map the terrain of the entire range first, don't miss any place." ”

"The mapping is done." Voyager said.

"The results of the drawing from the other day?" Hearing the Voyager's report, Zhou Xin immediately reacted, "It's okay, let's use this topographic map first, and then conduct a detailed survey of this area in the next few days." ”

A circular local topographic map appeared on the screen, and on this topographic map, Zhou Xin saw several mountain ranges in the same direction distributed within the circular range, the height of these mountains was not very high, but they traversed the entire circular area.

"There are a total of five mountain ranges within the specified area, all of which are about 2,000 meters high, and they are all very similar to each other, made of marble, and at the same time there are very few plants growing on the mountains." Voyager Introduction.

"It's still very ordinary, I don't see anything special. Voyager, are you sure this is the location marked on the DNA topographic map? Zhou Xin asked suspiciously.

"More than 98% probability, unless the planet's geological activity is violently unstable within 5,000 years."

"There's nothing unusual on the surface." Zhou Xin thought for a moment, then glanced at Spred and Ralph, and then said hesitantly, "According to what I see now, there is a high probability that the marks on the topographic map - not on the surface of the planet, but - underground?" ”

Seeing Zhou Xin's gaze, and then hearing Zhou Xin's words, Spred was slightly stunned, and then smiled bitterly. Apparently Zhou Xin was thinking of their underground research institute.

Zhou Xin continued to ask the Voyager, "Has the underground of this planet been explored?" ”

"Not yet." Voyager replied, "The probe only explored the surface of the planet, and there is no time to explore the surface for the time being. ”

"Then let's explore the underground in this area first." Zhou Xin commanded.

"Understood." The Voyager replied, then paused for a moment before reporting, "The probe turns on the georadar and the detection is underway." Not long after the report, a new alert came from the Voyager, "Warning, there is serious interference in the area, and the georadar is not working." ”

"Interference?" Zhou Xin was slightly surprised, "How can there be interference?" Is it a natural distraction? Where is the source of interference? ”

"According to preliminary determinations, the source of interference is the entire mountain range of the target map." After a while, the Voyager reported on the findings.

"How is that possible?" Zhou Xin was surprised, "How can the entire mountain be a source of interference?" ”

"The report sent back by the probe shows that the geological radar is seriously disturbed by the magnetic field, and it is initially suspected that this mountain range contains rich magnetite, which interferes with the operation of the radar."

"Magnetite." Zhou Xin understood, and he then asked, "How serious is the interference, and can the underground exploration still be carried out?" ”

"Most of the functions of the georadar are not usable, and some of the functions that can be used have also been greatly affected. It is estimated that the probe is now able to detect only about 100 meters underground. ”

"Is it only 100 meters?" Zhou Xin frowned, "This range is indeed a bit small, but let's investigate first, it's better than nothing." Voyager, isn't there a way to go any further? Didn't I remember that our detectors were not resistant to the interference of magnetic fields? ”

"Theoretically, our detector can resist the interference of a weak magnetic field, but the magnetic field strength in these mountains has far exceeded the anti-interference strength of the detector." The Voyager replied, "As for other methods, we can use ultrasonic detectors to explore this area, but since this situation was not expected by this ship, this type of detector was not prepared before, and must be manufactured now, and the efficiency of using ultrasonic detection is relatively slow." ”

"None of this is a problem." Zhou Xin said, "Let's start manufacturing now, as for the slow exploration, there is no way, it's better than not being able to continue to explore." ”

"Understood, this ship will start to make ultrasonic detectors."

After arranging the work of the Voyager, Zhou Xin said to Spred, "Then I will focus on the exploration of this circular area. But don't relax in the exploration of the entire planet, although we have explored most of the surface of this planet, but the exploration of the interior has only just begun, do not let go of any anomalous locations. And then there's those special creatures, I think there's more to them than that, so I'll leave it to you. ”

Spred said solemnly: "I see, the probes have reported to me that they have begun to explore the deep sea and underground, and I will help you pay attention to this matter." ”

"And me, and me, and me." Ralph shouted as she jumped and shouted, and Spred pressed her head before ending the communication.

Over the next month, the investigation of the area was painstakingly conducted. The initial exploration was not smooth, those detectors that were expected to be able to probe about 100 meters, although they turned off most of the modules that were interfered with, but the components of the detectors themselves were also interfered by the strong magnetic field, so these detectors will stop working under the interference of the strong magnetic field within a few minutes of working in the target area. This made Zhou Xin feel a lot of headaches, and he had no choice but to withdraw those detectors, and then launch the ultrasonic detectors he had just made into the target area.

Normal detection work finally begins after the arrival of the ultrasonic detectors, but even when they do, the progress of these detectors is still very slow. Although these detectors can detect terrain below 5,000 kilometers underground, they only cover about 10 square kilometers per day. According to this progress, it will take nearly ten years to explore this area, which makes Zhou Xin very anxious, and he has no choice but to ask Voyager to speed up the manufacture of new probes, with the gradual increase of probes, their efficiency in detecting this area has gradually improved, and now it can detect an area of about fifty square kilometers per day.

At the same time, in other parts of the planet, exploration of the deep sea and the earth is also underway, and the exploration of other places is very fast compared to the circular area, and in this month, the probe has searched about a tenth of the planet's range. Sure enough, as Zhou Xin expected, special creatures were found in the deep sea and underground from time to time, and the location of these special creatures just filled the large gap between those special creatures that had been discovered for a long time. At the same time, it did not coincide with the range of activities of the special creatures discovered before, which made Zhou Xin even more confused, and they couldn't figure out how this civilization could control the range of activities of creatures. However, although they didn't know how these special creatures were controlled, they saw the complete control process for the first time, but when they saw this control process, they were even more confused.

It was in the middle of the deep ocean, and the probe photographed a special species of bony fish, and just as the probe was about to notify the robot to come down and capture it, the camera captured an incredible scene.

At first, this bony fish was swimming slowly in front of the camera, with its mouth still open and closed, looking very leisurely. After the fish had swam for a while, it began to struggle in place as if it had encountered some ferocious fish. But no matter how much it struggled, it couldn't continue in the direction it had just started, and after a moment of struggle, the fish flicked its tail and turned its body around. As soon as the fish changed direction, the force that bound it seemed to disappear in an instant, and at the same time it stopped struggling, and then it resumed its original leisurely swimming state as if nothing had happened.

Zhou Xin was also surprised to see this video at first, but after watching this video, he felt puzzled, so he contacted Spred and asked them to hear their opinions. After watching the video, they were surprised and came up with a lot of strange ideas, but they were just conjectures, and there was no actual evidence to prove them. It wasn't until the end of the day that they came to the conclusion that while it wasn't known exactly how this behavior was accomplished, it was obvious that these special creatures were trapped in a fixed area. As for how they are trapped, they have many ideas, some say that the genes in the organism limit their range of activity, some say that the special environment on the planet restricts their activities, and some say that it may just be a conditioned reflex. There are different opinions, and Zhou Xin can't be sure which opinion is right.

Since he could not draw a conclusion, Zhou Xin had to put the issue aside for the time being, leaving it to find more evidence to explain the doubt later. So, he turned his attention back to the circular area.

"Voyager, report on the status of the investigation in that area over this period of time." Zhou Xin asked the Voyager.

"After a month of investigation, the probe has completed the exploration of 1,000 square kilometers to a depth of five kilometers, and several underground cavities have been found during the exploration. The ship conducted a detailed investigation of these underground cavities, and found that these underground cavities were all naturally formed, and there were no traces of civilization. Aside from these few cavities, no other anomalies have been found in the surveyed area. Voyager reports.

"Is it only a thousand square kilometers?" Zhou Xin frowned, "It's only been a month to detect this point, and this progress is a bit slow." Can't you speed it up a little faster? ”

"The ship is stepping up the manufacture of ultrasonic detectors." Voyager replied, "As we increase the number of probes, the area of our exploration will gradually increase, and yesterday the area of exploration in one day exceeded 100 square kilometers. ”

"Okay." Zhou Xin understood that this kind of thing was not in a hurry, so he said helplessly, "Try to speed it up." Then he asked reluctantly, "Did you really find anything unusual?" ”

"Nope." The Voyager replied in the affirmative.

Sighing slightly, Zhou Xin comforted himself, "Don't worry, I just completed one-thirtieth of the regional survey, I hope there will be good news in the next investigation......"