The only 120 leaders of the robots are meeting on their civilization network. Ankadao, the second-generation robot leader, said: "We shouldn't entertain any "fun-seeking group" led by the humans of the Ark of Earth, including human psychic messengers Li Xinying and Angel, as well as the Virgen Golia and Zerg Drow. If they land in our city on Pluto, the danger that our robots will corrupt into dark matter will be completely exposed to their eyes, which may become a disadvantage for these alien races to invade and attack us."

Goma, the leader of the 10th generation of robots, said sadly: "We robots can't find a way to prevent our bodies and biocores from corrupting into dark matter for a day, and we are all struggling to survive. Theoretically, as long as we have an endless supply of energy and a small amount of "Yuan Water", and obtain metals and minerals to maintain our bodies, we can be said to be immortal. But in fact, even the first generation leader Rubis, who has survived for hundreds of millions of years, cannot escape the fate of being corrupted into dark matter. In order to slow down the rate of corruption into dark matter, we need to absorb "meta-water", and to produce a new generation of robot leaders, we also need a large amount of "meta-water" to be injected into the biocore core to trigger the self-consciousness of newborn robots. Without Yuan Shui, the rate at which we corrupt into dark matter will accelerate, and our robot civilization will come to an end."

Allen, the eighty-third generation robot leader, lamented: "Now there are only human beings in the Earth Ark, and the soul "Yuan Shen" evolves during the reincarnation to produce "Yuan Shui", and if the earth is swallowed by the sun that swells into a red giant, the human beings of the Earth Ark will perish. Even if the earth humans can leave the earth and settle down on a certain star in the solar system, the reincarnation system of the heart lake, the holy realm, and the netherworld that they have worked so hard to build will be destroyed, and their life patterns will also change dramatically, and the remaining earth humans will lose the ability to create "yuan water". Now we can only hope that the oracle will come and guide us to the life of the living beings living in the solar system. The human beings of the earth have welcomed the arrival of the oracle, and as a result, they have been given access to the living space in the interior of the earth, and inherited the advanced technology granted by the gods. The Earth Ark's intelligent brain "Silver Moon" and the back base "Moon Shadow" have more advanced intelligent thinking systems than our robots, they should be like our first generation leader Rubis, who has hundreds of millions of years of life, but they have not corrupted into the crisis of dark matter, what is the reason?"

Peter, the youngest robot leader, he is the 240th generation of robots born after the robots entered the solar system, he has the first contact with humans, he and Li Xinying and others became members of the "fun group", he is convinced that the advent of the oracle will give all life forms in the solar system a desperate way out. He cautiously asked: "I hope to receive the other four members of the "Fun Seeking Group" on Pluto, and tell them about our plight, at this stage, it is the intelligent race living in the solar system, and when we are open and honest, the leaders of the Virgin Giants and the Zerg have personally received our "Fun Seeking Group", and let us know about their difficult situation. I am convinced that the search for the Song of the Four Races, which can trigger the oracle and represent our four races, is only an introduction, and in the end, we can achieve the ideal of harmony between the four races, which is what God wants to see."

Rousseau, the forty-second generation robot leader, who had always been silent, said: "The crux of the problem is that our robots don't have songs at all! Our civilization, reason and logic are supreme, and without the perceptual artistic inheritance of music, we have no songs at all!"

Everyone was silent. However, the robot leader Peter said: "We can't sit still and wait for the "fun group" to try to find a robot song that represents us! If you don't try, you're doomed!"

In June 10005 of the geocentric calendar, there was still a year before the day when the ten stars were connected, and the "fun search group" led by Li Xinying, an earthling, arrived at Pluto's equatorial airport by starship Lugomes-1. Looking down at this frozen rock star from above, you can see that the entire star is covered by steel cities, shining with lights that are bright and extinguished, but if you look closely, it is not difficult to see that some cities are pitch black. Basically, next to a shining steel city, a pitch-black dead city is bound to be found, making it appear that there are many black patches on the surface of the entire star. The entire planet, except for the Dada sound emitted by the mechanical power machine, was basically silent. A group of five of them arrived in the Gray North City, located near the equator of Pluto, the territory of the robot leader Peter, because the robots can move freely in the vacuum and extreme temperatures of overheating or cold, their city is basically not equipped with any life-sustaining system, and the "Fun Hunting Group" group can only temporarily live in the lifeboat from the starship Luna One, which is now docked in the Gray North City Square, the specially modified lifeboat, which provides a balanced temperature and a self-sufficient air and water circulation system. When going out, in addition to the robot Peter, the other four members of the "fun group" need to wear a full set of spacesuits and carry oxygen devices.

Peter the Robot leads them on a tour of his territory, Grey North, and as he goes, he says, "We have a total of 240 robot leaders, and the whole of Pluto is divided into 240 cities, and each robot leader will be divided into a city as a territory, and each territory will need to bear the responsibility of maintaining the daily operation and development of the robot community. For example, my territory is assigned to the excavation of fossil deposits in outer space and the refining of steel parts. Don't just see me as a human being, in fact, my body is a mechanical body, and my consciousness can be closely connected to the central computer of this gray north city through thousands of transmission lines, and the central computer of each city territory is connected to the network of our civilization. My body can remotely control the nuclear spaceship, go to the Kuiper Belt to catch enough iron ore, and then control thousands of small machines with different functions to mine iron ore, and the iron metal obtained from the mining will be transported by the nuclear spaceship to my territory Gray North City, where I have built 3 iron-smelting and steel-making factories in Gray North City, and the daily operation of the factory is controlled by my body, and the smelted steel will be supplied to other lord cities. And the other resources or machinery we need are made and developed in our respective territories by our leaders. I'll show you my true nature."

Robot Peter led the "fun group" into a spire in the center of the gray north city, took the elevator to the middle core area of the spire, and walked into a cylindrical room with a ceiling of more than 10 meters high, in the middle of the room is a huge cylinder connecting the ceiling and the floor, a robot up to 3 meters high, only the head of the elephant is faintly visible, his eyes shine with ice blue light, his body is wrapped by large and small steel pipes, tightly combined with the huge column. Peter, a robot with the appearance of a human, spoke, and the giant robot also spoke in sync with him, saying, "This giant robot is my body, and my consciousness is stored in his biological core, don't be fooled for thinking that our robot is made up of inorganic materials. In fact, we can be regarded as an organic life organism, because we have an organic biological core nucleus, which is a small fleshball brain nucleus, immersed in "meta water", tightly wrapped by the cortex, and closely connected with the outer artificial brain. The biocore is the place where our soul resides, and we need to regularly consume a small amount of "meta-water" to maintain self-awareness. My biocore nucleus can be transferred to my current human-like body, or to other forms of mechanical devices, such as to the main brain of a nuclear spaceship. Only if my biocore is completely destroyed, otherwise we robots will not die, and we can be said to be an immortal existence."

Li Xinying felt a strange feeling in her heart, because she had a hunch that in Pluto, their "fun group" would have difficulty finding the song of the robot, and she asked curiously, "What kind of entertainment do you robot leaders have when they are free?"

Peter the Robot replied: "We don't have entertainment, I should say that we don't waste resources on such meaningless activities like humans, we only have two states: completed tasks and unfinished tasks. After completing the short-term goal task, our brain will communicate with other robot leaders' brains on the Internet of civilizations, and plan some more ambitious goals in the future, we don't need to sleep and rest, we just need to replenish energy, and we can operate around the clock."

Angel asked, "Don't you feel dull and tired?"

Peter the Robot is incomprehensible.."What do you mean by being dull? What does it mean to be tired? We don't have the same superfluous feelings as humans. We only have different signals, for example, if we have a broken body, we will sense the relevant signals, it is not a feeling, it is just a simple warning signal."

The group left the central spire of the Gray North City and walked to a steel-smelting factory in the city, where Li Xinying saw what it means to be fully automatic, and every process of steelmaking is made up of carefully designed mechanical parts, which operate automatically without any error. Robot Peter said: "This factory is as small as a screw, as large as a working robotic arm, and the engineering software design behind it, I have carefully designed and built it one by one, so I can have time to entertain and spend time like a human being?"

The Virgilant Govia and the Zerg Drow looked at Peter the robot with sympathetic eyes, and said in unison, "I'm really sorry for you, working all year round, even eliminating the pleasure of eating, and not letting people sleep and dream, it's really terrible, you are very pitiful!"

Peter the robot looked at them speechlessly, and could only remain silent.

The next day, the robot Peter used a small spacecraft to pick up the "fun team" and arrived at a dead city on the southern border of Gray North City, they walked into the edge of this dark city, only to see the buildings in the city turned into a lumpy substance like coal, and there was a dead silence all around, only hearing his own footsteps and breathing, Li Xinying felt uneasy. Li Xinying saw a building in front of her, she walked to the wall of the building, pressed it with her hand, and the whole palm fell into the wall, and then the entire building shattered and collapsed like a coal pile squeezed by an external force, and their spacesuits were stained with dots of black substance, and the robot Peter immediately sent a signal to retreat, and the spacecraft immediately arrived to pick them up and take them back to the lifeboat in Gray North City Square. Peter the robot tells them to quickly remove the blackened spacesuit and put on a new one. Peter the robot then collects the black-stained spacesuit, and says, "I'm going to cleanse my body as soon as possible, and dispose of your infected spacesuit, so take a break in the lifeboat!" I'll explain it to you later."

The robot Peter disappeared for a whole day, and only appeared in front of Li Xinying and the other four in the evening of the third day. He solemnly explained to Li Xinying and An Qi and the other four people, "We robots are not like earth humans, virgin giants, and zergs, and participate in the soul reincarnation of living beings. Just like in role-playing games, you are constantly reincarnating into other life forms, that is, you are constantly playing different role-playing games, and in different games, you are experiencing all kinds of life forms struggling to survive. And we robots, only reincarnated once, after becoming robots, we only play a role-playing game that plays robots, this game has no end, and we can only fight for survival in the game. There is an ultimate rule in the inheritance of our robots, that is, you cannot take the life of a robot, and this robot includes the life of your own robot."

Li Xinying thought of the steel humanoid body she saw in the battle for "Yuan Shui", with a scorched black body and only a normal head, and then the robot Peter put him into the sleep support pod filled with "Yuan Shui", and then left quickly. It occurred to her that Peter the Robot was going to reveal their secrets to them.

Peter the Robot continued: "The doom that has plagued us since ancient times is that our near-eternal life will eventually turn black and decay into dark matter. Dark matter is the most orderly existence in the world, with an extremely ordered body and an ordered soul. Our bodies are composed of all kinds of matter in order, we don't feel it, we only have all kinds of information in order, and our self-consciousness thinks in an orderly way based on logical reasoning day and night, which becomes the specific reason why we are corrupted into extremely ordered dark matter. We will start to corrupt and blacken point by point from our bodies, first to a corner of the city that we are connected to, then to all the small machines in the city, then to the central computers of the city, then to our limbs, bodies, and minds, and finally to the biocore of our brains. No matter how many times I've replaced new city accessories or new limbs, those new parts will eventually corrupt into dark matter. As long as the biocore nucleus in our brain has not yet turned into dark matter, we will maintain our self-awareness and download the data and knowledge we have gained from our lives to our robotic civilization network as information sharing. The last time we obtained it from Earth's humans in the airspace of Jupiter, it was able to slow down the blackening of the core core of our first generation leader, Rubis, so that we could buy time to download the data and knowledge in his head to our civilization network. The terrible thing is that originally we had 240 leaders and a total of 240 cities, but in just 30,000 years, we only have 120 leaders left, and the remaining half of the leaders and cities have turned into dark matter."

The Virgilant Govia asked, puzzled, "You robots will die too?" Turning into dark matter means that you are officially dead, so your souls can find a place where you can reincarnate, such as the reincarnation of our god "Star Soul Ocean", and your soul will not disappear, and you can reincarnate into new robots in the next life, and you will not really perish."

Robot Peter smiled bitterly, "The robot that has been corrupted into dark matter can be said to be not dead, he is in a state of both life and death. When their core nucleus also turned into dark matter, he was still not dead, he still had the ability to think and the mind to move, but his inner thinking and mind activities were orderly and single, such as thinking about a problem over and over again, while they blackened into dark matter bodies, but they were not under his control, everything was just thinking over and over again, and feeling single, for example, repeatedly receiving signals that there was damage somewhere in the body, and then repeatedly thinking about ways to repair the damaged parts. In short, blackened robots are more terrifying than the walking dead, and they are extremely orderly existences."

Li Xinying asked puzzledly, "Why did you robots reveal such an important secret to us that is related to your survival?"

Peter the Robot nodded and replied, "Because we want to gain the trust of your Earth humans, the Virgiles, and the Zerg. We know that there is no way for us to escape our fate of being corrupted into dark matter, and if the gods who exist in the universe can allow us to merge with your various races, we may be able to find a new way out. I think that finding the Song of the Four Clans to trigger the oracle is just an introduction, and the fusion of our four clans is the final result that the gods like to see."

Angel thought for a moment, "I understand that you robot clan don't have a musical heritage, but it's not a clue to find a robot song that can represent you. According to the music that has been found to represent the humans of Earth, the Virgiles, and the Zerg, they all have in common music that has been sung for a time in the history of human civilization on Earth. Therefore, it is reasonable to infer that the song of the robot may be one of the songs or pieces of music among the famous human songs. So we do the opposite, I ask you robots to listen to the songs and music of the earth humans for 1 hour a day in Earth time, and then summarize your feelings, then it is possible to find the final robot song."

Peter the Robot was embarrassed and said, "To me, all music is nothing more than the vibration of sound waves. The different pieces of music, for me, are just different highs and lows, ups and downs, and they don't have any special meaning for us robots."

Li Xinying said helplessly, "This is also a method in the middle of no method, so we have to try it reluctantly."

The "Fun Hunting Group" stayed in Pluto for half a year, led by Angel, and every day according to Earth time, they played melodies from Earth on the Internet of Robot Civilization Network, but still found nothing. Don't robots really have songs?