The entire city seems dead because it has no residents, and even animals are very rare. However, after searching, it was found that the reason why the city was not covered and destroyed by nature and animals and plants is not other than that, but because there are some special robots in the city. These robots are made of a biological material. In addition, they have good self-repair ability and the special nature of the materials. It is difficult to find it directly in the universe. After searching on the ground, these robots were quickly noticed.￥f,.

These robots are the lowest-level robots. In fact, it is not right to say that they are robots. At best, they are just a machine tool with some intelligence. Their function is to ensure the integrity and cleaning of the city, and of course they also include a certain effect on driving animals. However, they drive them away not by weapons, but by using sound waves, etc. Although this driving method is simple, the effect is very significant, which is also the reason why there are basically no animals wandering in the entire city.

The robot only moves within a certain range. Depending on the situation, the program should be set up in advance. Nathan captured a robot according to Su Li's request, but after checking, it was quickly released because, as they imagined, it was just a machine tool and had no value. The robot after it was released seemed to have nothing happened. It continued to crawl in the area it stipulated according to the program, and cleaned up the streets and corners of the city.

It is precisely because of the existence of these robots. There are no other traces in the cities, including those buildings. Perhaps, at the beginning, there were traces left here, but the existence of the robots and the continuous cleaning of day and night had already wiped out all these traces. When they walked around the city and almost completed the search, they did not find any clues. As for what was going on in this city, whether there were civilized races inhabited and how those civilized races left, the answer is still unsure.

"Stop searching." Su Li said to Nathan on the Home spacecraft: "It seems that searching for cities is meaningless, so I'd better go to the Great Pyramid to take a look."

"I understand, we will return to the Pyramid Square immediately and prepare to enter the Great Pyramid." Nathan replied neatly, Pubmann did not speak, but just kept looking around the city.

"Pubaman, what did you find?" Nathan asked with a strange look.

Pubman shook his head: "I didn't notice it, I just felt strange. This city is so similar to Monsas City. You know that I have lived in Monsas City for so many years, and when I came here, I felt like I suddenly returned to Monsas City."

"Haha, I didn't expect you to have a sentimental personality. OK, sit back! We're going to go back to the Pyramid Square." Nathan said with a smile, then reminded him, and then the speed of the speed suddenly accelerated. In just a few dozen seconds, the speed arrived at the square in front of the pyramid. The large shuttle was still there, including the combat robot standing outside the shuttle and there was no change when they left.

Getting off the speed, Nathan inspected the equipment because they were about to enter the Great Pyramid. Before entering, no one could determine whether the Great Pyramid was the same as the Great Pyramid in Monsas City, so the necessary precautions must be implemented.

Confirm that the equipment is correct, Nathan reports to Suli that they are about to enter the Great Pyramid. Suli on the Home spacecraft replied to her agreement with the order. After receiving the reply, Nathan directed a robot to go to the Great Pyramid. As in Monsas City, the robot will open the passage for them to enter.

Everything went smoothly when the passage opened, almost the same as expected. The Great Pyramid was exactly the same as the Great Pyramid in Monsas City, and even the location of the passage was not even different. When the passage was opened, Nathan let two robots in front, and he and Pubman behind. As for the other two robots, the last formation was swayed and began to enter the passage.

When Nathan and the others walked into the passage, Su Li saw the scene in the passage coming on the home spacecraft. The inside of the passage seemed to be no different from the passage in the city of Monsas she had entered before. However, after they walked in a few meters, communication was interrupted due to the shielding of the materials used in the pyramid, and the entire picture disappeared after a tremor.

Nathan and Pubman entered the search, Su Li waited patiently on the Home spacecraft for the results. According to the plan, it would take about an hour to search the inside of the pyramid. Judging from the previous search of the Great Pyramid in Monsas City, this time is enough.

The disappearance of the signal was expected, so Su Li was not nervous at all, but just waited patiently. Time passed slowly, and 50 minutes passed quickly, and they were about to come out. Su Li looked at the projection intently, hoping that their figures would appear at the entrance of the pyramid.

But strangely, after Su Li waited for another fifteen minutes, Nathan and Pubman still did not appear. In terms of time, they had been staying inside the Great Pyramid for an hour and five minutes. Logically speaking, the time has come, and they should be back.

"Have you been delayed in it?" Su Li guessed so much. She continued to wait patiently, but as time went by, Su Li's heart gradually sank. When the time reached an hour and forty, Nathan and Pubman, and even the four robots that followed them into the Great Pyramid, still did not appear. What's going on?

Whether from the appearance structure or opening the passage, including the passage entrance, the Great Pyramid is no different from the Great Pyramid of Monsas City. The two Great Pyramids are almost exactly the same. Su Li personally entered the Great Pyramid of Monsas City, so she knew the internal structure very well. According to the search time and process, it is enough to go back and forth with a quicker time of fifty minutes. The search time that Su Li determined before was over an hour, which was already relaxed. But now, let alone an hour, it is almost two hours. Nathan and Pubbaman have not returned. This cannot make Su Li feel something is wrong.

"Is it possible that the interior of the Great Pyramid is different from the previous one?" Su Li assumed that without final determination, she could not make a definite judgment, because this was also a possibility. Of course, there was another possibility, that is, Nathan and Pubman encountered an accident in the Great Pyramid, and this possibility was also very high.

What is that possibility? Su Li couldn't judge. Now all she could do was wait. As time passed by minute by minute, two full hours soon passed. Su Li's guess about the latter's surprise became more and more certain. In the end, when three hours passed, that is, more than three times the scheduled search time, Su Li was basically sure that Nathan and Pubbaman should have encountered an accident. As for what accident they encountered in the Great Pyramid, Su Li couldn't judge.

Since Nathan and Pubman left the Home spacecraft in a shuttle and headed for the second planet of life, Robin has not gone anywhere. He stayed in his cabin and seemed to be thinking about something.

Although Su Li's arrangement did not explain anything, Robin was not a fool. He knew very well that Su Li arranged Nathan and Pubman to go with him to guard against him, and also seized him as a hostage on the Home spacecraft. Robin was not angry about this situation, because he was a smart man and a member of the Kiel civilization. As a prisoner, he was also a prisoner who had a small biological robot transplanted into his body. Su Li also said that he would not infringe on them in any safety aspects. If he changed his position, Robin would also make such a choice, so in Robin's opinion, he still agrees with this.

As for the questions Robin was thinking about, it still has to talk about their experiences on the way to the Red Dark Nebula. It was a bit different from Nathan. Robin was more stable in other aspects, and his identity was related to the official of the Kiel Civilization, unlike Nathan who was just a simple captain.

As a member of the Kiel civilization, Robin has always been proud of his identity. Indeed, in the entire Milky Way, the Kiel civilization has the technology and development history that other cosmic civilizations are envied by. After the Rand civilization disappeared strangely, a war between cosmic civilization broke out in the Milky Way. At that time, the Kiel civilization was not the most powerful cosmic civilization. However, with the outbreak of the war, the Kiel civilization, who was lucky enough to get the base of the Rand civilization, developed rapidly. From the beginning of entering the advanced cosmic civilization, this civilization rose in an unstoppable manner in the Milky Way.

After a long time, the Kiel civilization has now surpassed all other cosmic civilizations in the Milky Way and stood high above the top of the eighth-level cosmic civilization. In the eyes of all members of the Kiel civilization, they can reach the height of the Lant civilization in that year in one step and become the cosmic civilization that truly stands at the top of the pyramid. In fact, this is not only the Kiel civilization itself believes that, but also the other civilizations that are eighth-level cosmic civilizations also see this. Among these cosmic civilizations, everyone thinks that only the Kiel civilization can replace the status of the Lant civilization in that year.

It is precisely because of this that the Kiels are proud, and the Kiels are also extremely proud. Robin, as one of them, is of course the same, but when he encountered Su Li this time, he realized that the Kiel civilization he was proud of was actually not that powerful. The appearance of Su Li and the Home Spaceship made Robin shocked, but this was not the main thing. After all, in Robin's view, Su Li's appearance was an accident. After all, the other party was an advanced cosmic civilization from the extra river galaxy (their misunderstanding). As a high-level cosmic civilization outside the river, Robin could accept it even more than the developed Kill civilization. But when he followed the Home Spaceship to the Red Dark Nebula, a series of continuous discoveries shocked Robin's heart.

Two life planets, two small galaxies, and so many racial civilizations on the first life planet. When Robin discovered the first life planet, he was very angry at first. He felt that this unknown civilization hiding in the red dark nebula was imprisoned with a cosmic civilization that captured the Milky Way. This seemed to challenge their authority and the order they established in the Milky Way.

However, during the subsequent search and investigation, one fact after another, including the discovery of the second life planet, this series turned Robin from initial anger to shock. Although they had not figured out who the other party was until now, and they did not know their true identity, Robin clearly felt that the power of this mysterious unknown civilization was incredible.

Not to mention anything else, just Su Li's performance can make him feel this. You should know that Su Li is a member of the ninth-level universe civilization! As a member of the eighth-level universe civilization, Robin has a strong ability to judge civilization. He always thought that the Kiel civilization is the most powerful cosmic civilization in the Milky Way, but the discovery of Su Li and the Red Dark Nebula made Robin see the terribleness of the universe for the first time. Any possibility will happen in the universe. If he doesn't come to the Red Dark Nebula, he might have spent his whole life in this self-deception feeling.

Thinking of this, Robin couldn't help but smile bitterly and shook his head. What the plagiarist of the Galaxy Code, the top of the advanced cosmic civilization, these discoveries in Su Li and the current Red Dark Nebula are simply ridiculous. Robin even thought that if he could return to the Kill civilization, he would definitely report this situation to his superiors. In his opinion, the Kill civilization has become a level 8 cosmic civilization for too long. Perhaps it is precisely because of this that the entire Kill civilization has lost its spirit of the past and has become complacent.

I don't know how long it took, Robin returned to reality from his thoughts. Robin, who came to his senses, poured himself a glass of water and drank it, and then looked at the time naturally. At this time, he realized that it had been several hours since Nathan and the others left. They should have come back. Just as Robin was about to get up and walk out of the cabin to see the situation, a three-dimensional image lit up in the cabin. Robin turned around and saw Su Li.

"Dear sir, you..." Robin said, but before he could finish his words, Su Li said with a serious expression: "Come on now, something happened to Nathan and the others on the planet of life! Immediately!"
Chapter completed!