After Gu Sangyu returned to Fengluan Palace, he immediately sent someone to send the news out.

The old lady was so happy after receiving the news that she packed up and prepared to go in to see her daughter.

Before leaving, Mr. Gu was a little worried. "Why would Sang Yu let you in to see her again when she's fine? When you go in, ask her if there's anything wrong."

The joy on Madam Gu's face suddenly faded. "The letter didn't say anything, it just asked me to go in and take a look. I think everything is fine. I guess Sang Yu missed us."

Madam Gu thought for a moment and then asked in surprise, "Could it be that something happened to Jingzhi?"

Their grandson's reputation as a playboy was well known to everyone, even among the common people. Who knew who had spread the rumor? Their grandson was only three years old. It was normal for a child to be playful and disobedient, wasn't it? Why was he labeled a playboy?

When he grows up, even though he is a prince, it is not easy to say where he will get married!

Upon hearing this, Old Master Gu felt a little uneasy. Ever since the emperor ascended the throne, his family had been living cautiously, not daring to make even the slightest mistake.

He couldn't imagine what he would do if something happened to his little grandson.

But then he thought, if something really happened, it would be impossible for someone to just send a letter. He comforted the somewhat uneasy Madam Gu.

"Don't let your imagination run wild. Once you enter the palace, you'll know everything. What's the point of scaring yourself with random thoughts?"

Old Madam Gu entered the palace with an uneasy mood. At this time, Old Man Gu really envied his wife for being able to enter the palace. Unlike him, it was difficult for him to see his daughter and grandson.

When Mr. Gu agreed to let Gu Sangyu marry the prince who was not yet the emperor, he never expected that this day would come.

If he knew that this man would become like this, he would never let his daughter marry this heartless and ungrateful emperor even if it meant being hated by her for the rest of her life.

…

As soon as Madam Gu entered the palace, Gu Sangyu sent someone to take her to Fengluan Palace.

As soon as Mrs. Gu saw Gu Sangyu, her heart relaxed a little.

"mother!"

"Your Highness." Madam Gu wanted to pay her respects but was stopped by Gu Sangyu.

She looked up at Gu Sangyu with some embarrassment, and found that Gu Sangyu's face was full of pleading. Madam Gu sighed and gave up the greeting.

As a mother, is she really willing to greet her daughter with respect? Of course she doesn't want to be so distant, but her status is different.

Seeing Madam Gu compromise, Gu Sangyu's face broke into a smile. "Mother, everyone in Fengluan Palace is my people. You don't have to worry. No matter what we say here, it won't get out. Just treat me as an ordinary daughter, okay?"

The last sentence was pleading, and the tone was trembling.

Old Madam Gu smiled slightly, with tears in her eyes, but she finally compromised. She couldn't bear to see her proud and arrogant daughter become like this.

"good."

Gu Sangyu had someone prepare some pastries with a happy look on her face, and she also sent someone to call An Jingzhi back from playing outside.

After they sat down, Madam Gu asked, "You hurriedly sent someone to send a letter to call me into the palace. Is there something wrong?"

Gu Sangyu happily took something from Xiaowan's hand. It was a wooden board with many small pieces of engraved words on it. These blocks of words could be taken off and moved around at will.

After she brought the things over, she placed them on the table between them.

"Mom, this is why I asked you to come today." In fact, there was a bigger reason: she missed home.

But now I can’t go home, and I can only let my mother come in to comfort me.

She told Mrs. Gu about the role of movable type printing and their ideas.

Mrs. Gu's first reaction after hearing this was not joy. She frowned and said, "Sang Yu, you don't have to worry about me and your father. We are all living well. We have enough food and clothes. We don't need this kind of business. This thing is not something you can touch casually."

Although she is a woman, she has lived to this age, which is indeed something that ordinary people cannot compare to.

I could see the importance of this thing at first glance.

Why was it difficult to study in ancient times?

Isn’t it just that the books that carry knowledge are monopolized by the upper class?

Although the imperial examination was a relatively fair path, it was actually very unfair.

If an ordinary farmer's son wants to go to school, the cost is beyond the reach of a family that relies on farming.

What's more, the cost of pens, ink, paper, and their tuition fees, all added up, can crush a family.

Now with movable type printing, the cost of book production has been reduced, but those who master this knowledge will also become enemies of the ruling class.

Gu Sangyu knew what Madam Gu was worried about, so she told her what An Jingzhi had said to her, trying to convince Madam Gu that as long as they hid the movable type printing technology, the price of the printed products would be the same as on the market.

When I really make money, I can build a library.

A relatively free library, of course not completely free.

In order not to be too conspicuous, you can charge two cents. As long as you pay two cents, you can read freely in the library all day long.

This library will become the guardian statue of the Gu family in the future.

When the time is right, libraries can also become free.

In short, with the library, if the emperor wanted to take over their family, he would have to consider the opinions of the scholars in the world.

An Jing later discussed the idea behind this with Gu Sangyu. He already knew it from the original owner's memory. According to their original statement, Mrs. Gu would definitely not agree to make a living by writing books.

After all, they don't value those enjoyments, and at the current stage, they would like to be as low-key as possible.

But Gu Sangyu's library plan really impressed her.

Although the situation is relatively peaceful at this stage, both the Gu family and the emperor know that the emperor is waiting for them to make a mistake.

When the emperor loses his patience, he may put a label on them even if they have not made any mistakes, or force them to make mistakes.

"This library you mentioned sounds good, but I have to go back and discuss it with your father." Old Madam Gu was still tempted, and she planned to go back and plan it carefully with Old Man Gu.

Gu Sangyu smiled. She knew that her mother would agree.

In fact, she didn't know why her three-year-old son could come up with such a brilliant trick.

An open and aboveboard conspiracy.

Even if the emperor knew what they were thinking, he would not dare to do anything.

After all, if they opened a library, it would benefit students all over the world.

And it’s not free, so it doesn’t overshadow the emperor.