Because of the visit, the atmosphere in the entire palace was a little different.

This time, the three concubines, as well as the seventh prince's biological mother, Concubine Ning, and Concubine Yi, were among them.

It would be fine for others, but Concubine Yi had no children, but she was allowed to visit her parents. No one else could figure out why.

Most people believed that this might be an attempt to appease the military commanders.

Only Gu Jiuxing thought he might know the truth...

After all, when Emperor Ming Yan heard what Yan Shiyue said, he said with emotion: "Yue'er's ability to make money is beyond my reach even if I flatter her."

Then Concubine Yi was included in the list of people who would be visiting their parents.

But he just thought about this secretly. After all, who would believe that the emperor asked the concubine to visit her parents just to take advantage of her family?

It was at this time.

The results of the county examinations for the 13th year of Ming Yan were announced in various places.

...

...

Emperor Yan of the Ming Dynasty issued a special decree a few years ago, that starting from this year, for three consecutive years, students from northern academies could take part in the imperial examinations in Longmen County.

Of course, the number of admitted students will increase according to the number of participants.

After the Longmen County examination results were announced, among the admitted students, there were as many as fifty-six students from Northern Academy, while Longmen County itself only admitted seventy-seven.

At the same time as the news came, Yan Shiyue's business teaching materials were finally completed.

After dinner, Huo Qijing took it out and handed it to Xu Wenqu, saying, "Sir, Yue'er said that if there are allusions like Guan Zhong's 'wearing silk and surrendering to Lu and Liang', please help put a few in."

Qu Sinian, Gu Hengsha, and Huo Qiyang all went over to see.

It was a very thick stack. If it were put in modern times, it would probably be as thick as a dictionary. About one-third of the front was written by Yan Shiyue, and about two-thirds of the back was written by Huo Qijing.

When they first came in, a few people were still chatting and laughing, but gradually, they all became silent and the room became quiet, with only the sound of flipping pages.

It can be seen that she really put a lot of thought into writing this thing.

The first part is about the new accounting method, and the second part is about the explanation of each chapter, which is easy to understand and very practical. In order to facilitate understanding, many examples are included, such as Fu Bo's surrender to Lu Liang and some operations of the Ministry of Commerce.

Yan Shiyue's idea is to write two books. This one is an introductory textbook, focusing on sales. The other one is to train "traders". The overall situation, current affairs, the way of balance, etc. will all be discussed. Well, of course, this one only exists in her mind now.

The four of them watched until 2:15 a.m. before they finished. Xu Wenqu finished first, put his hand on the table, and sighed, "Today I suddenly feel that I have wasted ten years of study!"

Indeed, although the text is simple and logical, if you read it carefully, even someone like Xu Wenqu who knows nothing about economics can get a glimpse of it. In the words of Yan Shiyue, it is all practical information.

Huo Qiyang said: "Master, there is no need to make a big move. Merchants don't need to have too high standards in terms of literature and science."

"Yes," Qu Sinian agreed, "Just correct the mistakes and omissions. It's better to make it simpler."

The four intellectuals were so excited about what they were saying that they simply rolled up their sleeves and started transcribing. They separated and managed to finish transcribing just before the morning court session.

Then Qu Sinian presented the newly copied version to Emperor Yan of Ming after the morning court session.

When Emperor Mingyan heard that the four of them had not slept all night, he couldn't help but laugh and said, "Is it really that good?"

Qu Sinian said: "Your Majesty, just take a look and you will know that we are truly impressed."

Emperor Ming Yan agreed with a smile, but he was busy with official business and had no time to take care of it. He wanted to summon Xu Wenqu to talk about it during lunch, but he heard that Xu Wenqu had taken three days off, apparently wanting to concentrate on editing the book.

Seeing such importance attached to it, Emperor Ming Yan became curious and took it to have a look after his meal.

Then I just stayed there, putting my afternoon things aside, and watched until the moon was at its zenith.

It is indeed interesting, as if a new door has been opened. It also makes me more understandable about her previous actions.

Emperor Ming Yan ordered someone to deliver it to the crown prince.

Xu Wenqu spent three whole days revising the book from beginning to end. When he sent it to Yan Shiyue, Yan Shiyue felt very guilty: "I'm sorry, sir, I may need to revise a few more places..."

Xu Wenqu smiled and said, "It's okay, just revise it. It takes ten or eight years to revise a book, so what's the harm in revising it a few times?"

Yan Shiyue said, "Then let me tell you while I am revising it, so that you can save some trouble when you copy it again."

Xu Wenqu smiled and agreed, and Yan Shiyue went into the study, took the red pen, and added and revised directly on the paper. At the same time, he couldn't help but sigh: "Sir, it's really a turn of events. It's only been a few days, and I can circle your words!" As he spoke, he circled a stroke.

Xu Wenqu just laughed and said nothing.

It took Yan Shiyue another two days to make this change.

Then Xu Wenqu spent another two days copying out the fourth edition... Yan Shiyue felt extremely embarrassed and made a few more changes.

During this time, the Fourth Prince came and took the third edition away.

It was revised in this way until the seventh edition, when it was finally finalized and handed over for quick printing.

Yan Shiyue named it "General Knowledge of the Ministry of Commerce". The original author was Yan Shiyue and revised by Xu Qing. There is an index at the front and selected questions and reference answers at the back.

This was originally a normal operation, but before it could be printed, two unexpected guests came to the Duke's Mansion.

The seventh and eighth princes came and said to her seriously, "Royal sister, can you let us handle the sales of the Commercial Ministry General Knowledge?"

Meow?

Qiba is two years younger than Huo Qiyang. Although he is said to be ten years old, he is actually only nine years old. She is used to Huo Qiyang's maturity, but these two... In her mind, she still thinks of the little kid who played with the six-sided spinning wheel.

Yan Shiyue asked: "Who asked you to come?"

The Seventh Prince said, "We came here on our own initiative. I asked our father, and he said that as long as you agree, it will be fine..." He held her, blinking and acting coquettishly, "Sister, just let me try. We will split the money we get from the sale with you fifty-fifty."

Fine, she didn't intend to profit from this anyway.

So she said, "I can leave the work to you, but first, the books must arrive in the prefectures as soon as possible. Second, the price of a book cannot exceed thirty taels."

With the invention of movable type printing and the improvement of papermaking, the price of books has dropped a little, but her book is very thick, so the cost would have been at least ten taels.

The Seventh Prince nodded: "I know, this thing is of different significance. Raising the price by relying on its rarity will damage the reputation of the court. We can't lose the big picture for the small one!"

Okay, if you have this awareness, nothing serious will happen.

Yan Shiyue raised his hand and handed the matter to him.

The children of the royal family are really extraordinary. They dare to ask for work at such a young age.

In the evening, Yan Shiyue chatted with Huo Qijing for a long time. He didn't answer, so she asked: "Did you hear it?"

Huo Qijing had been listening to the fetal heartbeat with a stethoscope for a long time without saying anything. When she asked, he said, "I heard it."

She said, "I want to ask about the fetal heart rate!"

He smiled and said, "I can't hear it clearly. Is it because the child is too young?"

Really? Yan Shiyue didn't know the time very well, so she said, "Then I'll listen to it in a few days." As she spoke, her eyelids kept closing together, "I'm so sleepy, I'm going to sleep..."

Huo Qijing quickly put away the stethoscope and blew out the candle. She snuggled up to him and fell asleep in seconds.

Huo Qijing slowly placed his hand on her huge belly, his fingers trembling slightly.