When Zhang Nan heard Cui Shao coming, he quickly said, "Come in quickly, let's go to the front hall." After Zhang Nan finished speaking, he went to the front hall with Cui Yue, but Zhang Nan was also very surprised. This was obviously the time to go to work, so why is his father-in-law coming to his house now? It's so hard that he skipped the shift like himself?

As soon as Zhang Nan and Cui Yue arrived at the front hall, they saw Cui Shao sitting in the front hall drinking tea.

"Why did my father-in-law come to the mansion today if you have time?" Zhang Nan said with a smile.

Cui Shao was very surprised when he heard that it was Zhang Nan's voice. He turned his head and saw that it was Zhang Nan, and asked with a strange look on his face: "Qingquan, shouldn't you be in the Ministry of War? Why did you come back so early today?"

"Shouldn't my father-in-law be in the Ministry of Revenue now? Why did he come to me?" After Zhang Nan said that, Cui Shao and Zhang Nan looked at each other and smiled. They already knew in their hearts that Cui Shao also skipped the shift.

"Haha, I don't talk about this or this. I came here mainly to see Yue'er today." Cui Shao called him and went over.

"Hey, why is Yue'er still reading books now?" Cui Shao looked at his daughter and found that he was holding a book in his hand, which made him a little strange.

"Oh, this book was written by Langjun. Langjun was afraid that his daughter would be bored in the house on weekdays, so he gave it to his daughter specifically." Cui Yue said with a happy face.

"Oh, Qingquan can actually write books?!" Cui Shao looked surprised. Writing books was an extraordinary thing in ancient times. In ancient times, it was not easy for a person to write a book in his life. Usually, a book took more than ten years or even longer. Cui Yue said that Zhang Nan actually wrote a book, so how could not surprise Cui Shao? Zhang Nan was only in his early twenties and could write books.

"Take it and let me see it." Cui Shao urged.

Cui Yue handed Cui Shao the "Journey to the West" in her hand. Cui Shao picked up the book and looked at it carefully. After reading it for a long time, Cui Shao slapped his thigh and said, "Okay." Cui Shao first praised, and then said, "But did you really write this book Qingquan?" Cui Shao was skeptical about Zhang Nan saying that the book was written by himself. After all, Zhang Nan's memorials were written by his daughter.

"Hehe, although my son-in-law can't write, he can speak. This book was written by me orally and written by someone else." Zhang Nan continued to use the excuse he had already thought of.

"But Qingquan, you are only in your early twenties this year. This book has at least one million words. So when did you start writing this book Qingquan?" Cui Shao didn't want Cui Yue to be so easy to fool. Cui Shao is now asking the bottom line.

The book "Journey to the West" has a total of 820,000 words. 820,000 words are put into modern online novels. It has been a very slow pace for a writer to write in the first half of the year, but it is simply a fantasy to put this speed into ancient times.

"This... I've written it for a year." Zhang Nan just randomly missed a number. Anyway, there was no way to test this thing, so he couldn't help but say nothing.

"One year? So fast." Cui Shao looked shocked, but he didn't say much. After all, Zhang Nan's book is just a weird novel. As long as he has a story in his heart, it is not impossible to just write a book without doing anything every day.

Suddenly, Cui Shao put all his eyes on the paper of this book. In the Tang Dynasty, there was no white paper as white as snow. Even rice paper, no one could be as sworn as the paper of Zhang Nan, and the paper was so good.

Generally speaking, in the early Tang Dynasty, paper was not popular because the general public, especially farmers, had very little demand for paper. Apart from the inferior paper used to go to the toilet, the people would not spend money to buy beautiful but expensive literati paper. Paper became a mass consumer product until the Song Dynasty. Therefore, paper was used during documents from aristocratic families and government officials. Even so, it was divided into grades.

The paper used for government documents varies according to the official position and the category of documents. For example, the administrative documents of the court are usually copied from white hemp paper, the military documents are jute paper, and the five-color hemp paper is used for the documents used by the court to senior officials in various ethnic minority areas. Therefore, Cui Shao is unheard of the paper for this book.

"Qingquan, what kind of paper does this book use? Why have I never seen it before? This paper is not only as white as snow, but also has a much harder texture than rice paper. It feels not easy to damage. What kind of paper is this?" Cui Shao asked in surprise. After saying that, Cui Shao turned out a page and twisted it with his hands, as if he was feeling the quality of the white paper.

"This paper...this paper is made of a secret method that I travel through time, so it's normal that my father-in-law hasn't seen it before. After all, this paper has never been circulated on the market." Zhang Nan then whispered.

"Since that's the case, you must know the secret method of making such paper, otherwise this book would not be possible." Cui Shao said.

"I know this...I know." Now that things have come to this, Zhang Nan had to say that he knew. Anyway, if Cui Shao wanted to know how this paper was made, he could also change the method of making paper in the system.

"Oh, how much does this paper cost?" Cui Shao asked with interest, as if he was interested in the method of making paper in Zhang Nan.

"It's very low cost, it's not expensive anyway." Zhang Nan thought for a while and said that the most important raw material for paper like this is wood, but if it were ordinary wood, how expensive would it be?

"Oh, Qingquan, you have such a good recipe, why didn't you take it out earlier?" Cui Shao said with regret.

"Is this... very important?" Zhang Nan looked puzzled. Cui Shao was not short of money. This use of paper to do business should not be Cui Shao's original intention.

"With this paper, how many of our Cui clan's orphans could have written it on this paper to preserve it, and even used it to exchange books from other aristocratic families." Cui Shao felt very excited when he thought about it.

Since woodblock printing was not popular in the early Tang Dynasty, books were still mainly hand-copied, so their prices were relatively expensive. All the aristocratic families regarded collecting books as the most. Books were the capital of aristocratic families over other aristocrats. Only with books can we educate the next generation. It can be said that education was monopolized in ancient times. Although there were poor scholars studying, most of the officials in the officialdom were children of aristocratic families.

Zhang Nan didn't know these things, so he could only remain silent. Cui Shao flipped through the books with satisfaction, as if he had obtained some treasure.

"By the way, I want to remind you that you must not let this cheap papermaking method... know." Cui Shao said this and pointed to the sky. It goes without saying who it was. "If you are known, it will be a catastrophe for our aristocratic families." Cui Shao stroked his beard and said.
Chapter completed!