The sky on the A floor is still a deep blue of nature, and the smoke of the war between the two regimes never seems to have drifted here, and most of the people here have been able to enjoy a relatively stable and peaceful life even after being separated by five levels.

In her memory, her father's tall figure always surrounded her for a long time. When he was a child, his father accompanied him through one spring, summer, autumn and winter after another, no matter the joys and sorrows, whether it was cold or warm in winter and summer, as long as it was where he was, he would definitely have his father.

His father was a physicist. When she was a child, she could always see a lot of things in her father's laboratory that made her curious, and whenever she moved her childish steps and stretched out her little hand towards the high test table, her father would put down what he was doing and run over and pick her up. He was always smiling and very patient in explaining science to his daughter, and as long as she wanted to hear it, he would always tell him unreservedly as a father.

Under the influence of her father, she gradually developed a strong interest in physics. When she told her father one day that she wanted to be a physicist like him, he touched her head lovingly at the determined gaze in her eyes, and he pulled a few strands of hair from her cheeks back.

"Come on, Daddy is waiting for you to become a great physicist one day." He smiled kindly at his daughter.

Later, she was admitted to the university and went to other districts to study and live, and for more than a year, she rarely had the opportunity to go home and meet her father.

She remembers that it was during the summer vacation of her sophomore year, and when she got home, her father came to the station to pick her up.

She saw that her father's face had a lot more wrinkles and his hair was much grayer. After such a long time, she found out for the first time that her father was unknowingly, gradually aging in the process of growing up with her.

Her father told her that he was working on a science and technology that had never been broken through before by mankind - the creation of a time machine.

As a scholar who is also well-versed in physics, she knows how difficult it is to deploy and how unfeasible it is. She wanted to persuade her father to abandon the impossible idea.

But when she saw her father's resolute expression, she couldn't help but hesitate.

She remembered that when she was very brave enough to say her dream to her father, wasn't that the expression on her face? He is so unwavering in believing in what he aspires to and boldly pursuing breakthroughs. This is the attitude of a scholar.

She participated in her father's experiments and was responsible for helping him with practical operations. Although she is only a sophomore, after years of accumulation, her knowledge of physics is no less than that of any senior physicist. She found that her father's idea was not groundless, on the contrary, after her father's efforts for so long, many technical levels of her father's proposed time machine research have been broken through, and some have even reached extremely high standards.

Following this trend, it is not impossible for this technology to finally achieve a breakthrough from scratch.

After the summer vacation, with great expectations and reluctance for her father, she returned to her campus. She is still in close contact with her father, and whenever he tells her that he has made progress in some aspect of technical research, she is sincerely happy and proud of his efforts and achievements.

Until one day she received a message from the police about her father's death.

At the beginning of the day, it seemed to be as usual, nothing special happened, classes were normal, and I was preparing to talk to my father during breaks.

When she opened the communicator, she found an unfamiliar document in the message column. She looked at the signature, which showed the Police Station in District 1 on Level A. The content is not much, a few lines, only the corresponding factual content is stated.

My father died. Died in his own laboratory.

Her expression stiffened at that moment. All the expectations and enthusiasm that I originally had seemed to have been poured on a basin of ice water, and it was extinguished all at once, leaving no trace.

The most important person who accompanied her in the course of her twenty-three years of life disappeared from her life without warning.

The world swirled in a whirlwind. In a panic, she hurried home.

My father's body has been sent away. The lab seemed to be empty all of a sudden, and she wouldn't see the familiar figure standing there again.

Tears blurred her cheeks.

There were only a few people at my father's funeral, and many years of closed-door research and life made very few people really close to my father, except for a few close friends at work, most of those relatives did not understand what my father did.

It was raining heavily that day, and it seemed that when people were in a bad mood, their surroundings were able to respond. She stood in front of her father's tombstone with an umbrella. She looked at her father's posthumous photo on the tombstone with a slight smile. My father is not a man of words in front of others, only to himself, to his only daughter, he will always show a gentle smile. She thought, at this moment, is he still looking at herself?

She returned home and sorted out the relics left by her father alone, including various experimental materials and report papers that she had done during her lifetime. The most recent one was about the progress of her father's research on the time machine. She looked at the document with a wandering look in her eyes. She didn't expect her father to make such great progress in this experiment, which was impossible in the eyes of normal people, the formulas on the information documents, and the data of the experimental records that her father scribbled in his busy work, little by little, were clearly arranged. She silently sorted them together into a small box that her father had used during his lifetime.

She had a dream later. She was back in her childhood, and her father held her little hand and smiled softly.

When I woke up, tears were already soaking my pillow.

She suddenly wanted to continue her father's experiments. She wondered if she could use the machine to go back in time when her father was still alive if she could use the machine to make such a thing.

I still have a lot of things to say to my father, and I want to look at his gentle smile again and accompany him for a long time. My father's experiment has come to an end, and I am almost there, as long as I continue to follow my father's path, there is hope for success.

A few days later, she went back to school to take a leave of absence, and when she returned home, she began to study the materials her father had left about the experiment day and night. She gradually became isolated from the world and did not return to her original circle of life.

The time scale passed three years in her memory.

After three years of day and night, she finally completed the overall exposition of the construction of the time machine in theory, and realized the possibility of technical implementation in theory.

The night after completing the final report of the experiment, she had another dream. For more than three years, due to excessive physical exhaustion, she couldn't remember all kinds of dreams she had clearly. But this time there was an exception.

In the dream, she walked alone on a dark path, the road was so long that it seemed that there was no end in sight. In the dark space, she walked in a lost way. Even time seems to have stopped beating and is frozen in this black world. She wanted to cry out for help. I opened my mouth, but I found that I couldn't make any sound.

groping aimlessly in the endless darkness, for a long, long time. In the haze, she seemed to have forgotten why she was trapped here.

In the distance, rhythmic footsteps could be heard.

"Click", "click", "click".

She looked back, and in the thick darkness, she couldn't see anything.

The footsteps continued, and the sound grew clearer from far to near.

She began to run away in a panic. In a panic, he took a step forward. There was a faint glimmer of light ahead.

As if grasping at a life-saving straw, she rushed there.

The blinding light shone on her at once, and she couldn't open her eyes. She stood on a green prairie, with flames above her. Looking back, the darkness that had been around was long gone. It was as if I was standing in the middle of this grassland.

Occasionally, the wind swept across the meadow and made a whirring sound.

In the distance, huge pyramidal buildings stretch out in the midst of the greenery.

She had never seen anything this big. She vaguely remembered that it was a mausoleum built thousands of years ago by an ancient civilization for their dead rulers. She remembered what seemed to be a building called a "pyramid". But in my impression, it seems that only in desert areas can you see such large-scale mausoleums.

She walked towards there.

When I took a step, the moment I landed, the surrounding scene changed rapidly as if the image in the projector had been switched. When I came back to my senses, I was already standing on the beach, and in front of me was the blue sea, and the waves kept crashing against the sand, causing pale white foam. She could clearly smell the sea breeze.

Her gaze was fixed on the sea, where massive "pyramid" buildings stood in the air.

Where am I? She thought, and couldn't help but lean down to grab a handful of mud and sand on the ground.

The line of sight was once again darkened. She rubbed her eyes hard, and when she opened them again, she was standing on a knoll in the middle of a vast plain. Surrounded by a wasteland, there is no grass.

She saw in the distance the familiar sprawling complex, which looked eerie in the gray shadows. The cold wind blew, and she shivered with the cold.

I could vaguely see something dark and misty in the gray field in the distance, beating constantly on the empty field.

She watched, slowly growing a little frightened.

These strange things were moving in the direction she was standing. She wanted to leave, but found that she was frozen and could not move.

It was as if I heard a desolate scream. The voice, as if coming from the sky, was obscured by the gray clouds, and she didn't know what it would be.

A shadow of black pressure gradually permeated around her body, getting closer and closer.

She was stunned. In the darkness, a pale face was revealed.

Her gaze suddenly became glazed. "Father." She said unconsciously. What greeted my eye was the familiar gentle smile.

He slowly walked up to his daughter. With the smile he once had, he opened his arms to his daughter.

She pounced without hesitation.

"Sting". She felt a sharp pain in her abdomen.

A wisp of blood ran down the tip of the knife and flowed to the ground. When I looked up again, my father's face was long gone.

In front of him, a tall black figure stood.

The rich black color made her unable to see each other's faces clearly. Gradually, she felt a heavy feeling of vertigo, and her body began to fall down uncontrollably.

His eyes were on his own body. It's like an out-of-body experience. She watched her pupils drift.

She let out a scream.

When I woke up, I was already in a cold sweat. She got up and walked to the bathroom, where a haggard face reflected in the mirror. She hadn't had a good rest in so long. She thought it was time to put the results of her research into practice. My father had been involved with an industrial conglomerate in a government department, and it was possible to use their power to actually build the machine.

Early the next morning, she went to the premises of the industrial group with all her research reports on the experiment.

When she went out, she felt a little dizzy, she patted her head, last night's nightmare kept her awake all night, and her body still felt very tired.

It was already noon when I arrived at the train station. Due to her physical condition, she always stopped and stopped along the way, and she was delayed a lot. The station was as crowded as ever, and she sat down in a small corner of the waiting hall after buying her ticket. The extreme dizziness struck again, and she felt her eyelids uncontrollable, and her vision gradually blurred.

It was as if I was back in that familiar nightmare. In the black field, she stood alone on the hillock.

She knew she was having nightmares again. She began to work hard to wake herself up from her dream.

The black shadow reappeared, slowly trying to get closer, and this time she saw the face of each one.

Countless familiar figures, surrounded by thousands of people with faces like their fathers. They slowly approached her. She struggled to free herself from the nightmare.

The people in the station all looked at this strange girl with a strange gaze. Her gaze did not sparkle, and she walked sluggishly towards the entrance of the platform.

She slowly moved forward, and slowly, to the edge of the platform, below which were two long railroad tracks.

Someone tried to stop her. They ran over and pulled her arm.

The girl's strength was so great that she broke free from them at once.

There was a sound on the platform for the bullet train to enter the station. In the distance, the lengthy figure of the bullet train, with the sound of "whirring", is about to drive into the platform. She pushed everyone away at once.

The train is getting closer, and it is about to pass in front of you. Her body fell straight down.

She woke up from her nightmare all at once. In my sight, there is a huge bullet train in front of me. Her pupils dilated infinitely with horror for a moment. How did you end up here?

There was a roar, a muffled crash, and flying blood splashed the platform red. The backpack he was carrying behind him was knocked into the air. The zipper came loose, and a wad of white paper scattered out and scattered in the air.

The fluttering paper, with the light wind carried by the train, fluttered lightly in the air, and then slowly fell to the ground.

The crowd let out an exclamation.