Ge Zi and Mu Mu returned to the tool room, and the two sat down to rest, and they breathed a sigh of relief.

"Are you scared, Xiaozi?" Mu Mu turned his head and asked her.

"Afraid of what?"

"You've just escaped death." Mu Mu smiled, "Now that we are on Titan, it is not certain whether we can be rescued, objectively speaking, our hope of being rescued may be very slim, won't we be afraid?" ”

Ge Zi thought for a moment, "I'm afraid." ”

"You look so calm."

"Me? Am I calm? Ge Zi pointed at himself, "I'm just scared stupid." ”

Zhao Mumu took out his laptop and turned it back on.

The hard disk is in Mu Mu's hand at the moment, which stores the station records from twenty years ago, they have seen it roughly before, but they haven't been able to read it all, in addition to audio and video, there are also a lot of text materials in the hard disk, if you want to read and analyze all these records in detail, it will take a long time.

Ge Zi leaned over and put his arm around Mu Mu's shoulder.

Since they can only stay here to rest, it is also idle to be idle, so it is better to continue to analyze the information left by Cassini Station twenty years ago, they are quite curious about what happened here back then, and the abandonment of Cassini Station is a secret buried in history.

"Mumu, what do you think that black ball is?" Ge Zi asked.

"A product of some alien civilization, right?" Mu Mu said, "Look at the physical characteristics of that black ball...... At that time, the researchers at Cassini Station left very detailed analysis data, the mass was just 2.718, the circumference was exactly 3.1415926, and it could absorb almost all electromagnetic waves, where can humans make this kind of thing? It can only be the work of other wisdom. ”

This conjecture is quite bold, and so far, no trace of the existence of other higher intelligences has been found.

If the black ball really comes from another advanced civilization, then this will completely change humanity's perception of the universe.

"Then why is it on Titan?"

"Because that higher wisdom has been here." Mu Mu smiled, "How long is the history of the universe?" At 14 billion years, how long is the history of the solar system? Five billion years, how long is the history of mankind? Three million years, before the birth of humans, other advanced intelligences had 4,997 million years of time to visit here, and perhaps when they established their cities on Titan, life on Earth was just setting foot on land. ”

"So what is this ball for?"

"I'll have to ask the creature that made the black ball." Mu Mu shook his head.

"Did it kill the people at Cassini's station?"

Mu Mu was stunned.

"According to the records, since the appearance of that black ball...... "Ge Zi recalled the video he saw, "the people in Cassini seem to have become abnormal. ”

"Yes." Mu Mu whispered, "It may affect the human spirit, but this doesn't make sense, that ball doesn't actively release any matter and energy to the outside world, if it really releases something that can affect the human brain, the people in Cassini Station will definitely be able to detect it." ”

Cassini Station has state-of-the-art detection tools, and even if something is imperceptible to humans, it will not be able to escape the eyes of the instruments.

Trust your tools, not your eyes.

This is the experience summed up by the predecessors, tools are more reliable than the eyes, the human eye and brain are delicate but fragile and delicate, easy to be disturbed by various factors, but tools are different, tools are machines built by physics and engineering, it is always calm and always meticulous.

"But the one who disappeared...... Lou Qi, what's going on with him? Ge Zi asked, "How did he disappear from the P4 lab and disappear from the world?" ”

Zhao Mumu was silent for a few seconds and shook his head.

She didn't know what was going on - if Hu Donghai's death and the subsequent weird changes could be explained by his mental state, then Lou Qi's strange disappearance was completely beyond the scope of common sense, how could an adult man with a height of one meter seven and weigh more than a hundred pounds suddenly disappear for no reason?

Ge Zi and Mu Mu were both a little frightened.

The disappearance of Lou Qi is enough to overturn the hypothesis that the so-called black ball affects the human brain, no matter how much it affects the brain, it is impossible for a person to disappear completely, as long as the problem cannot be explained, then it is impossible for them to know what happened back then.

What happened at Cassini Station twenty years ago may not be so simple.

"Hee-he Mu Mu suddenly leaned over and smiled at Ge Zi, letting out a strange shrill laugh.

Ge Zi was startled, and jumped to the other side of the tool room with a scream.

"Mumu, you scare me again!"

"Is it that scary?" Zhao Mumu shrugged.

"I ...... I'm almost having PTSD. Ge Zi nodded and took a breath, "What is this strange sound of heehehehehe?" Is it laughter? How do I think it wasn't sent by people. ”

"I also don't think it's like it came from a human being, he......he Hehe......he It sounds like laughter, but who laughs like that? ”

"Sure enough, something invaded Cassini Station later, right?" Ge Zi asked, "The two people who came back from outside...... Liang Jing and Jiang Zi, there must be something wrong with them, right? ”

Mu Mu stared at the mottled wall opposite the tool room, silent.

She had no way of knowing what that voice was, the things she and Xiao Zi were discussing happened twenty years ago, who could know what happened here twenty years ago?

Unless someone was now somewhere twenty light-years away, looking at the Titan with a telescope, he would be able to see the living Cassini Station crew in life.

"Not necessarily." Mu Mu said, "Maybe those two people - Liang Jing and Jiang Zi, they are really crazy, affected by the black ball or something, anyway, they have been in this kind of place for a long time, and it is not normal if there is no mental problem, so they are going to kill Mo Yu and Ya Xiang, as for this weird laughter, they are mentally ill people anyway, and it is not strange to make any sound." ”

This is the most realistic explanation.

Ge Zi silently hugged his knees, Mu Mu's explanation was very reasonable, but was the truth really so simple?

"When we fix Dabai, Dabai is the only computer that has personally experienced the accident 20 years ago." Mu Mu continued, "When the time comes, you can ask Dabai directly." ”

"And what about the last rescue ship?" Ge Zi remembered that there was another spaceship that they had missed, "The spaceship that came to the rescue, the Buran, where is it?" ”

"Twenty years ago, no one survived here, which means that the Buran also crashed." Mu Mu was excited, "It must have crashed around here!" That ship, the Buran, must be near Cassini Station! ”