It was late, and the light was still on in only one room of the cottage in the field, where the young man in the white shirt sat at the table with his pen and drawing on a piece of silk.

It was time to finish the last stroke, and he put the pen in his hand aside.

His eyes fell on the canvas in front of him, the painting was already very beautiful, and the woman in the snowy night looked beautiful.

But the boy looked at the painting and still didn't seem satisfied, so he let out a breath and slowly rolled up the canvas.

It's still a little bit worse, the original painting of Shuo Fangnu he saw back then is far from being comparable to the one he painted.

I thought it was just the difference between silk cloth and drawing paper, but he had tried several times, and even if he painted with silk cloth, he couldn't draw so truthfully.

Shuo Fangnu's painter did not leave his name, and it is a pity that he has not painted anything else since then, as he heard that this painting was his last work.

"Bang bang."

The rain made a lapping sound on the windows, the air was cold, and the rain outside had not stopped.

The boy placed the rolled canvas on the side of the table and sat down on the edge of the table, looking sideways out the window.

The windows were hidden, and it was pitch black in the rain outside, and nothing could be seen, only the shadows of a few distant mountains seemed to be visible in the distance.

There is a bit of coolness in the rainy night, which makes people's sleeves slightly cold.

The boy stood up and pushed the door open, and the sound of the rain outside became more chaotic as the door was pushed open, and it was set up in pieces in the courtyard, splashing on the ground.

It was already nearly the middle of the night, and the boy walked through the corridor beside the courtyard with his hands behind his back, and he was going to see the guest again, hoping that it would be harmless.

He didn't rest until this time because he was worried that something would happen at night, and the cane in the guest's hand always gave him a bad feeling.

The sound of the young man's footsteps was not heavy in the night, and he was not removed by the sound of the rain, and he walked to the guest room on the side of the courtyard.

The light in the guest room had gone dark, and the people inside were already resting, and the young man's slightly frowning eyebrows were loosened a little, and it seemed that he was really too careful.

It is inevitable that he is so cautious, now that there is no father and brother in the family, he is the elder brother, and they all say that the elder brother is like a father, so he naturally wants to keep his family safe.

Not long after the Yellow Turban Disaster, there were bandits outside, and a man of unknown origin may be living in his home with a sharp weapon.

Ordinary people probably won't let such a person in, and it's already his concern to let people stay overnight.

The young man was about to leave, but suddenly found a bamboo and wooden box in front of the door of the guest room.

It was the box that the guest carried.

How to put this box outside, the young man's eyes showed a hint of doubt, and he walked over.

The box was placed on the steps under the eaves, so that it did not rain much, but even if it was, it should not be placed outside but in the house.

Standing in front of the box, the young man hesitated for a moment, then reached out and opened the bamboo box.

Looking at the contents of the box, even this often indifferent teenager swallowed a mouthful of saliva.

A whole box of books, enough to fill a few small bookshelves.

In these days, books were a rare thing, and the books in his house were only a few, mostly left behind from his father.

It can be said that he has never seen so many books put together several times in his life.

The boy's mouth moved, and his hand holding the box trembled.

His eyes were fixed on the bookcase, and at the titles of the books on it, many of which he had never seen before, or even heard of.

This adds to the allure of this box of books for this young man.

He froze there for a moment, and looked into the room, where there was no sound.

His face was red, with some shame in his eyes, and he wanted to close the bookcase, but his hand paused again.

There is always a thought in my heart, just look at it, and put it back after reading it.

In the end, I didn't hold back.

He took a copy out of the bookcase, lifted the hem of his clothes earnestly, sat down on the edge of the bookcase, and looked at it.

Look at it first, and after reading it, tomorrow I will ask the gentleman in the room for the guilt, and let him punish him.

The clouds and rain in the sky opened slightly, revealing some moonlight, which shone on the young man who was kneeling on the edge of the bookcase, and slightly illuminated the book in his hand, so that he could read the handwriting on it.

The book he was holding in his hand was called Arithmetic Briefs.

His brow furrowed slightly when he first looked at it, and the arithmetic on it was a form he had never seen before, with many symbols that he didn't even recognize.

But as he understood it, he soon immersed himself in it, his eyes became brighter and brighter, and he lowered his head from time to time in thought.

Although the arithmetic method in this book is special, it is extremely convenient and simple, and according to the method in the book, the calculation is much faster than the regular arithmetic.

If the arithmetic on it is popularized, it is enough to change the ancient arithmetic system, and just a thin book is enough to say that it is an arithmetic work.

The arithmetic is not thick, and it has only been two hours since the boy finished reading, and the sky is still dark.

He closed the book and looked into the bookcase again, a look of incomprehension in his eyes.

It's just a book, and if this box is full of books like this······

At this time, this bookcase is simply a treasure in his eyes.

But then there was a burst of regret in my heart.

I'm afraid the guests in the guest room will leave tomorrow, and I'm afraid I won't be able to read a few books in this box at all.

Looking up at the sky, it was about a few hours before dawn, and the young man put the arithmetic brief in his hand back into the bookcase.

He was about to pick up the following book of Introduction to Arithmetic, which in his opinion should be a further explanation of arithmetic.

However, his hand stopped again, and instead of taking the book of arithmetic, he picked up the general theory of armor on the side.

One night was too short, he could only choose to watch more, his arithmetic was not good, and it was something he had never learned at all, it was the same as learning it from scratch.

He had read the content of a simple arithmetic book for only a few dozen pages, not to mention the more in-depth content.

Let's take a look at something that's easier to understand first.

The general theory of military armor, the title of the book of view, should be a book of soldiers.

The boy held the book in his hand and turned a page.

It is indeed a book of soldiers, and it is not that he has not read the theory of soldiers at all before, and even once read the fragment of Sun Tzu's book of soldiers.

But this general theory of the art of war still made him sigh, and it recorded several strategies for using troops, all of which were quite unique, but they all had their own practicality. The text is simple and not blind, so that people can quickly understand its meaning.

For example, he was impressed by a sentence in the book that summed up guerrilla tactics.

It is sixteen words, the enemy advances and I retreat, the enemy is stationed and I disturb, the enemy is tired and I fight, and the enemy retreats and I chase.

Time passed quickly, and the boy sat by the bookcase and watched all night until the next day's dawn.