Xu Zhan walked to the door of the reference room and looked at the girl behind him looking up at the mirrored ceiling. The distorted light cast a moving shadow on her face, and her face flickered in the light and shadow, making her whole person a little unreal.

"Hey, what's the fuss, don't let me go back?" Just when Xu Zhan was full, she suddenly urged.

"Well, okay, I'm going to close the door. Senior, you ......"

"Okay, okay, I'll talk about it the day after tomorrow. Feng Shaojun interrupted him, turned his head and smiled, "Why didn't I find out that you talked so much before." ”

Xu Zhan didn't want to nag any more, turned around and exited the data room, and closed the door gently.

Three, two, one.

Pushed it open again, and the data room was already dark.

Raising his head, there was no mirror on the ceiling, and it seemed that Feng Shaojun had already left the data room.

The curtains were not drawn on the window, and the light from the window passed through the window, casting colorful blocks of light on the old wooden floor of the reference room, and the whole room seemed very quiet without the cheerful and lively girl.

Will she go back to rest, or will she continue to work in the lab to help the professors with their projects?

With all kinds of conjectures, Xu Zhan walked to the desk, picked up the brown notebook that was lying quietly in the corner of the desktop, and came to the laboratory on the first floor.

The time for crystallization cultivation was almost up, Xu Zhan glanced at the semi-finished products in the crystallizer, sighed and wrote the experiment record on the notepad.

"The crystalline particles that precipitate are in the form of powder, which means that we are still not making progress in the final purification operation. The newly developed crystallizer from Meissen Pharmaceuticals will arrive in a week, and according to the previous analysis, it should significantly improve the quality of our products. ”

Anyone who has played with copper sulfate crystals knows that crystals will "grow", and the same is true for phyllophyllin crystals, the higher the purity, the larger the crystals. Cemented powder is a sign of poor quality and poor crystalline development.

The content of phyllophyllin itself in phyllophyllin plants is particularly low. Fifty or sixty years ago, only Feng Shaojun's team determined through a large number of experiments that a few micrograms of phyllophyllin could be successfully extracted from the flower neck of the leaf sunflower plant through a specific experimental method.

Over the years, many places around the world have tried to further promote the chlorophyllin project, but it has not reached the level of Feng Shaojun's team.

Xu Zhan flipped through the information in his hand to confirm whether there was any mistake in his words, and while writing, the speed was really not fast. When I was writing about the new crystallization equation, it occurred to me that there was a formula that I had recently seen in the old library, and it was just right to use.

Without saying a word, he grabbed his notebook and rushed to the library with a dozen materials.

Because there are a lot of basic knowledge to be learned, and a large part of the books cannot be found electronically on the Internet, in addition to the reference room, the old library, which is only three minutes away from the No. 7 laboratory building, has become Xu Zhan's second base.

Song Qinghui was very familiar with the librarian teacher, and Xu Zhan naturally asked for the access card from him.

Brushing open the door of the library, Xu Zhan hummed a little song and entered the reading room of the library with ease. The old library is never crowded with people, so it doesn't close until 10 p.m. like the big library, and it usually locks after 6 p.m. Turning on a small lamp, Xu Zhan pulled out a chair and sat down, reading the materials while doing a lot of calculations on the scratch paper.

He was the only one in the entire library. The sound of the tip of the pen writing on the paper swished softly, accentuating the silence around it.

Xu Zhan especially enjoyed this quiet environment, which made his attention more focused.

After counting a few pages of manuscript paper, I finally came to a conclusion. Xu Zhan closed the reference book with a sense of accomplishment, and was about to fill in the conclusion on the notepad, but saw that there were two more juanxiu blue characters on the notepad.

"Come on!"

He couldn't help but be stunned, wiped his eyes carefully and looked again, only to confirm that he was really not wrong.

Is it Feng Shaojun's handwriting? Xu Zhan flipped through the pages and was surprised to find that some of the experimental records he had written before had also appeared in small blue pen letters, the same as the annotations he had seen on the lecture notes before.

But this book has always been in his hands, when did Feng Shaojun write it?

He felt that his brain had condensed into a mess, and when he turned it back, he saw that the blue pen words had been modified on the crystallized equation he had written, and it was being modified!

It was Feng Shaojun who was helping himself revise the experimental records "40 years ago"!

Xu Zhan watched in amazement as numbers and letters appeared in his notebook out of thin air, and couldn't help but pick up the pen as well, and wrote, "Senior, thank you." ”

And attached a smiley face afterward.

Feng Shaojun's handwriting paused for a moment, and he drew one on his smiling face.

After ten minutes, no new content was added to the notebook. Xu Zhan looked at the time, it was not early, she should have gone to rest.

This notepad that can chat across time and space is really an amazing thing, as if it were a chat software.

Anyway, the information to be checked was almost checked, Xu Zhan simply put aside all the things that had been sorted out, and tinkered with this magical notebook.

The brown notebook seems to be the node that brings all these out-of-phase changes, and I don't know if it can contribute to the creation of space-time machines for the motherland if it is contributed to the National Physical Laboratory......

You can do physics research that you are better at!

"Why don't I tinker with this notepad and develop a time machine? This is no more meaningful than working on the Z-Sally project, this new anesthetic that has not been developed for forty years!" Xu Zhan couldn't help but sigh.

Breaking through the limits of time, it's a super invention that can raise the entire dimension of human beings!

The brown notepad on the desktop suddenly jumped, and then that familiar sense of tilt reappeared!

He didn't do anything just now!

Why did the situation arise again to bounce him back to the original world?

The shadow of the original world appeared in front of him again, and he saw a dark room without the light of day. At the foot of the concrete wall, the mildew nourished by the dampness reveals a suffocating gloom.

A sense of despair hung over him.

Why is this world so unjust! People who commit crimes can go unpunished, but I just want to tell the truth, but I don't even have the qualifications to speak, I can only be suppressed by the powerful here......

Negative emotions came like a tsunami and avalanche, and Xu Zhan hurriedly took a breath, allowing himself to break free from the boundless whirlpool of hatred.

He was just struggling to ignore the ghosted prison scene when he saw a bookshelf rushing towards him!

Xu Zhan was taken aback, and hurriedly wanted to avoid the side, but because the ground was tilted, the arc-shaped desk had already "hooped" him against the wall when he was distracted just now.

He can't avoid it!

"Boom!"

The bookshelf slammed into the desk, and the books on the bookshelf crackled and smashed Xu Zhan's head and face. I saw the bookshelves in the old library sliding here one after another.

He was so frightened that he saw that the bookshelf was about to crash into him, when the filing cabinet behind him suddenly shook and collided with the bookcase. The bookshelves and filing cabinets were placed in a triangular shape above his head, and Xu Zhan, who had escaped, held his head and froze in place, looking incredulous.

Didn't you get crushed into a meatloaf in the impact just now?

Xu Zhan was a little dazed and obediently squatted back into the gap.

Now, it's a little safer to sit under the desk.

Sooner or later, the weight of books and shelves will crush the desk, and it won't work any longer.

Xu Zhan exhaled and calmed himself down.

At this time, a notebook fell in front of him.

It's the brown notepad.

Xu Zhan's attention was suddenly attracted by it, he picked it up, and remembered what he said just now, he said that he wanted to invent a time machine?

"Isn't it, it's not okay to mumble?" Xu Zhan cried and laughed, "Can you still understand me?"

"Knock!" something bumped into him again, Xu Zhan held the brown notepad in his hand, no matter if it was because of this or not, in short, he would talk back first!

"I'm just talking nonsense! I'm really going to bring you here, and you won't be arrested and treated as a test subject together!"

Xu Zhan roared, completely ignoring his image - of course, he was embarrassed now, and he had no image to care about.

The creaking of the desk's painful struggles stopped, and the falling dust and bits of wood on the ground flew back to where they were supposed to be.

The desk trembled, and finally moved back, and a light appeared in Xu Zhan's dim vision. 、

Xu Zhan felt that he was really immortal...... Maybe there will be a blessing in the future?

He slammed out from under his desk.

It turns out that this accident was because he provoked the brown notepad.

It is worthy of something that can connect the two planes, and it really can't be easily offended.

Xu Zhan fearfully put the brown notebook back on the desk like an ancestor, intending to go out and blow the cold wind to calm down.

This time the world has been dumped for a long time, so the recovery is also extremely slow. Xu Zhan wasn't sure if there would be a problem if he left before this place was restored, so he just stood there and watched the rows of bookshelves quietly retreat back to their original places, and the world returned to its original state like a rewind.

Finally, it was the turn of the last bookcase that had fallen to the ground to recover, Xu Zhan looked at the other things around him, and breathed a sigh of relief, it was almost over.

The bookshelf staggered up from the ground, returning to its place with the books that had fallen from its body. At the same time, Xu Zhan smelled a strange smell in the air, like the smell of rust.

Could it be the smell from the movement of the bookshelves before? Yes, after all, they are all old guys, and it is normal for them to rust or something.

Xu Zhan thought so, and after a while, the smell faded.

He took two more steps forward, and found that a take-out drink cup appeared on the ground at some point, and the drink in the cup was poured out, and the ground was full of water, and now this water was slowly crawling back into the cup. On the ground not far from the cup, some french fries were sprinkled, half on the outside, half in a paper bag, and pressed under the pile of books along with the bag.

How could there be food in the library? He didn't notice these things when he came in just now? Was it thrown by the students? But the library is cleaned after it closes......

Xu Zhan thought suspiciously, at this moment, the pile of books that had fallen to the ground suddenly shook, and one book flew off the ground and returned to the distance, revealing what they had buried under them, or rather, people.