Professor, your turtle!

Xun Jiangyun said: "We are surrounded by a network of heaven and earth. It is impossible for us to leave Xiaotangshan directly, but I think, maybe I can take Liwan back to my time and leave all this crazy. It sounds very risky, but I don't want to No choice."

"By the way, have you heard of the conservation of time?"

Fu Mingyuan frowned slightly, showing interest for the first time.

"I concealed this speculation from Tang Yun, but in fact, setting up corresponding substances to counteract the 'time amount' in reverse is a necessary condition for the shuttle to succeed."

"To put it simply, the movement of matter on the time axis follows a certain conservation principle. When an object is launched forward, there must be an object of the same amount that moves backward to cancel the 'time amount'." He gestured, " Compared with the amount of motion, the rule of 'time' is simpler. Since the existence of time cannot be measured by time itself, the time we are talking about here is just a pure vector, which only represents the direction, not the size. When the object is on the time axis When a move occurs on the top, the total amount is equal whether it is one or ten squares."

"In other words, neither the mass of the substance used for offsetting nor the time distance it travels will affect the result, but there is one point, the nature of the two substances must be the same - that is, if we want to realize the shuttle of people, we must use humans as the medium .”

Ji Fan sweated silently, is it really easy? Hey!

Xun Jiangyun moistened his lips, and continued: "Those young people who died unfortunately, because part of their torso moved to the future, and the other part moved to the past, they were cut in half by time. Lanzhou and I have the same reason , but luckier—when the shuttle happened, he happened to be forward, and I was backward, and the two barely reached a balance, and they just saved their lives from the explosion."

"Based on this consideration, theoretically, the experiment should be carried out by two people at the same time, jumping in different directions respectively. But as you can see, this method is very unstable and prone to accidents—for example, A's head and B's The torso appeared at the same time. So I began to research a safer substitute. Finally, from the body of the deceased, I isolated a special crystal."

"—that is a special product left over from time travel. It can replace the human body and become an equivalent 'weight'. I first tried it on experimental animals, and then repeatedly deliberated on the dosage. After several months, I finally prepared I bought enough crystals for two people to jump, and planned to take Liwan away while she was asleep."

"Maybe it's the retribution for my selfishness and cowardice, but the accident still happened," he rubbed the center of his brows wearily, "Liwan was pregnant, but I didn't know that there was a mistake in the dosage of crystals. I was the only one who was supposed to fall Arrived, and she was thrown out halfway."

"Can you imagine that feeling? When you wake up, your wife's granddaughter is almost ten years old."

His tone was playful, but the corner of his lips evoked a helpless smile.

"I immediately made up my mind to go back to find her. The crystals I left were enough for me to jump once, but that night, there was a sudden noise in the village, saying that the little granddaughter of the Xun family was missing."

"I didn't need to meddle in my own business. I comforted myself that as long as I travel back in time, everything will be changed, we will live together forever, and it is impossible for Ahuang to disappear. But I couldn't help but think, what if it fails? What if I fail to go back, and what happened to Ah Huang?"

"I sat and thought about it for a long time, and finally went back to the woods to find her granddaughter." He paused, showing a wry smile, "Oh, who would have thought that the person who kidnapped Ah Huang was actually Tang Yun. No, what I should have guessed is that I underestimated his obsession... Probably because time is running out, he tried his best to restart the 'Xihe' plan, trying to crack it to prolong his life. He immediately made my offspring ——Since the experiment on me was successful, then maybe Ah Huang can too."

"That man is already crazy." Xun Jiangyun shook his head, "I rescued Ah Huang from the abandoned test site, but was cornered by the pursuers. In desperation, I made a desperate shuttle."

"This time, we jumped back to ten years ago. As you can see, the too hasty jump took my legs. Fortunately, I still have a life, and I raised her alone until another 'Xun Huang' Disappeared from Liwan's side and brought her back."

Fu Mingyuan has been silent for a long time, and when he heard this, he suddenly said, "Why did you come back now? If the same person met at a different time, what danger would there be?"

Ji Fan understood what he meant, and Fu Mingyuan held his arm so tightly that his bones ached.

Xun Jiangyun thought about it for a moment, and said, "Well... I'm not sure. From my point of view, I'm just worried that Li Wan won't be able to accept it, and I don't want to disturb the ten years she deserves to enjoy family happiness."

Fu Mingyuan breathed a sigh of relief, and his tense muscles relaxed.

He said: "Since you've come back, don't rush to see Sun Liwan, what are you doing in this hot spring hotel?"

"This is where I want to ask you for help," Xun Jiangyun gently tapped his legs, "As you can see, my health is deteriorating, and I may not last long. Before I die, I want to try to end this A tragedy caused by human arrogance—Xiaotangshan’s underground research institute has sealed up a lot of materials and experimental products, and I want to… end it.”

"Then the person you should be looking for is not us," Fu Mingyuan said indifferently, "but Boss Tang."

Xun Jiangyun said meaningfully: "I understand, but..." He raised his voice and called, "Lan Zhou!"

Ji Fan looked in surprise at the skinny boy who appeared behind the door.Chen Zhen still had an indifferent expression on his face, and he was not surprised when he saw him, but his indifferent eyes were a little more violent than before, and his whole demeanor seemed fierce.

He didn't come in alone, and he dragged another person by his hand—a rickety old man.His messy and dirty hair was roughly dragged by Chen Zhen in his hands, as if he was carrying a pig or a dog, dragged through the door, and slammed on the ground.

The old man woke up from the fall, his bloodshot and turbid eyeballs glanced around, and he threw himself on Chen Zhen's side, curled up and begged for mercy: "Yes, I'm sorry, I'm sorry, please forgive... please forgive me..."

Chen Zhen was unmoved in the slightest, his face full of indifference.

"Forgive me, I'm sorry... Yes, yes, you want money? I have a lot of money!" The old man grinned with his missing teeth, and his disgusting saliva dripped down.

Ji Fan stared at him nervously: "He...he is..."

Chen Zhen raised his eyelids and glanced at him.

Ji Fan lost his voice: "Boss Tang?"

The sad image of the old man being abused always seems to make people feel uneasy. At this time, Chen Zhen added coldly: "That person...is him."

He was taken aback: "What?"

"I told you about the past, my experience, and your uncle's death. After I disappeared, Youzhen never believed that I would defect. He began to investigate the truth of the incident himself, and finally found out the dirty secret behind the experiment. "

"The murder of Chen Youzhen was done by people surnamed Tang, and he pretended to commit suicide afterward, and it was also done by him," Chen Zhen smirked in disgust, and kicked his hand away, "What a pity, he has gone crazy."

Ji Fan could tell that he really regretted this.

Xun Jiangyun pushed the wheelchair, rolled in front of him, and said kindly: "Tang Yun, do you still remember the pass order of the underground research institute?"

The old man looked up and stared at him blankly.

"As long as you tell me, I promise to let you go."

"Leave...?" The old man's cloudy eyeballs were full of bewilderment.

Xun Jiangyun was a little disappointed, but it was also expected.

"As you can see, he is already a useless person," he turned to Fu Mingyuan, and said calmly, "My revenge is over, but before I completely destroy my life's hard work, there is one thing I want to entrust to..."

Fu Mingyuan frowned.Unexpectedly, Xun Jiangyun turned his eyes, stayed behind him, and said softly, "Ji Fan?"

"?" Ji Fan was stunned, "Me?"

Xun Jiangyun looked at him quietly: "Excuse me, can I trust you?"

His heartbeat quickened unconsciously: "What do you trust or not, I..."

"You, or another you, I want to entrust you with all the information." Xun Jiangyun looked at him gently, "We can't contact him, but I guess he will definitely be by your side."

Ji Fan was slightly taken aback.

At this moment, under the corridor, a tall and thin figure suddenly said:

"Tsk."

No one noticed when he was standing there, as if he had always been there, or just appeared.

He lifted his hood, revealing his thin and fair face—it was the young Ji Fan.

"It's the first time we meet, my surname is Xun..."

"I know," the young man waved his hand to interrupt him, and said simply, "I have no obligation to help you."

Ji Fan was a little surprised. He vaguely remembered that the young man said that the purpose of returning to the "now" was for that piece of data. At this moment, the opportunity was in front of him, but he refused for some reason.

Xun Jiangyun nodded: "I understand. But I still hope you will think about it carefully. In the absence of key technologies, it is purely a fluke that you were able to teleport to ten years ago. You have not gone back. Is it because you don't want to go back, or because... you can't go back ?”

"So what?" the young man said nonchalantly.

"I can find a way to send you back. Xiaotangshan's underground research institute retains experimental crystal samples, equipment, and a full set of data backups—all the destroyed data are there. Even if it's not for yourself, you still have to think about it ..."

The young man was silent for a moment without any rebuttal.

"I can guess the general situation in the future," Xun Jiangyun smiled. "Abnormal weather, extinction of creatures, melting of ice caps... There are some omens that have appeared from now on, aren't they?"

The young man's eyes darkened, and he suddenly said, "That's not a world worth sacrificing and fighting for."

Looking at him, Ji Fan seemed to have understood the world-weary temperament of the other party, which was a kind of despair left behind after experiencing countless sorrows, countless efforts in vain, and countless failures.

"No, you don't understand," he said flatly, "The ecology is deteriorating and energy is exhausted. If we all work together, we won't be able to survive. In this world, the only thing that can kill human civilization is human beings themselves."

"I used to naively believe that if I just go back to the past, everything can be undone. But I was wrong."

"Time may be able to save the sickle-wing chicken, the krill, and with a little more effort, even the passenger pigeons that were slaughtered by American adventurers, but it can't save people's hearts. Human nature, from the beginning to the end, has always been Nothing has changed in the slightest.”

"Everything that has been painstakingly saved is just an extra reason for them to destroy legally."

Xun Jiangyun listened carefully, and finally said softly, "You really think so?"

"..."

"Really, nothing has changed?"

The young man suddenly raised his head and glanced at Fu Mingyuan, and the young man beside him, Ji Fan.Ji Fan looked at him for just a second, and noticed that there seemed to be some inexplicable emotional fluctuations in his eyes, which disappeared in a flash, and disappeared before he could see clearly.

The atmosphere in the room was dignified, and the time in just a few minutes stretched extremely long.

Finally, the young man let go: "What do you want me to do?"

The wind blew the lantern lightly, and the warm yellow light reflected in Xun Jiangyun's eyes. His expression was soft, and it seemed that even his pale face had a little more warmth.

"I will hand over all the materials to you, as well as the research notes of the past ten years. I think it should be enough to help you and your team stabilize the shuttle technology. In contrast, when you have done the necessary things, promise me , please destroy it."

"..."

"This is a technology that is enough to arouse the greed of all human beings. It should not have existed in this world. It has already brought too much suffering, and it may cause more tragedies in the future." His eyes became firmer , "It's not enough to just destroy the finished product, you have to cut the grass and roots, do you understand what I mean?"

The young man seemed to have expected it, and he pursed his lips tightly.

Ji Fan was taken aback for a moment, then turned to look at Fu Mingyuan, only to see that he also looked solemn.He realized something instantly, and his face changed.

"What do you mean by cutting grass and roots? If, if the past is completely erased, then all the people related to time travel... you and Sun Liwan, or even us, may never meet."

Xun Jiangyun's tone was calm: "I am willing to return fate to fate. Next, it is your choice."

Behind him, Xun Huang put his shoulders on his shoulders, silently expressing his support.

"Ji Fan, where's your answer?"

The young man didn't make a statement, but just glanced over.Ji Fan held his breath and found that everyone in the venue was looking at him, including Fu Mingyuan. They didn't say a word, but just looked at him quietly.

——One side is the illusory future, and the other side is the precious and precious past.

"Fu..."

Fu Mingyuan turned his face away: "This is your decision."

This is not the first time he has given Ji Fan the right to choose, but never has it been as important as it is now.

——His emotions, his fate, his life and death, he put them all in his hands.

In the blink of an eye, Ji Fan suddenly realized that even though he never dared to think about it, in the heart of the other party, they were always equal.

It turned out that he had always been trusted in this way—loved and respected by such an excellent person, by his Mr. Fu.

Ji Fan's eyes were a little dry, and he remembered some small fragments.

In the closed ice room in Antarctica, Fu Mingyuan was wearing old clothes, showing no signs of embarrassment.He spread Ji Fan's clenched fist, with a cold expression, but gentle eyes.

"You've always been a brave man," he said, "just not confident enough at times."

That was the first time someone praised him like this.The timid heart trembled slightly, like a young bird with flapping wings, beating happily.

Ji Fan raised his eyes to look at Fu Mingyuan, who was still silent, but his eyes were the same as at that time.

The fog dissipated in an instant, and his heart became clear.

Ji Fan turned to Xun Jiangyun, his palms sweating.He swallowed nervously and said, "Sorry, I can't promise you."

"However, I can assure you," he added courageously, "that if what you worry about happens, I will certainly do my duty."

Xun Jiangyun stared at him for a while, then stretched out his right hand.

Ji Fan held it.

"Alright, I trust you."

A very casual promise, but it has a heavy weight.