Just one pregnancy and four babies, but the prince actually pledged his love to her

Hearing this, Shen Yu's face turned pale. This time she heard the coldness in the eldest prince's words.

She also has to rely on the eldest prince to become the most noble woman and must not be abandoned by him.

She felt that just relying on a formula for explosives would not be enough to convince the eldest prince to marry her willingly.

"My Lord, I know that the great event you are planning is not something that a small person like me can get involved in. However, I know one thing, that is, the great event you are planning requires not only powerful weapons, but also money. I have a few ideas to make money. As long as you, my Lord, have people do it according to my methods, I guarantee that you will make a lot of money. Not to mention hundreds of thousands of taels of silver, even hundreds of millions of taels is not a big problem."

When the eldest prince heard Shen Yu say this, he immediately let go of his hand.

He knew that Shen Yu was right, and he was also in urgent need of money.

You have to know that if you want to raise soldiers quietly, in addition to keeping it confidential, you also need a lot of money.

Even if he has a lot of properties under his name, the money he would spend to support tens of thousands of private soldiers would be no small amount.

He had been trying to find ways to increase his income, but the increase was considerable, but his consumption was even greater, so that as a prince, he was often troubled by money issues.

Now hearing what Shen Yu said, he felt hopeful. As for whether Shen Yu would deceive him, he was not worried.

He had someone investigate Shen Yu's background a long time ago. Shen Yu was just lucky enough to be chosen by Prince An's Mansion and live there, becoming the mansion's cousin for a period of time.

But now Shen Yu has been driven out of Prince An's Mansion and has no one to rely on in the capital. If Shen Yu was smart, he would know what to do.

"Miss Shen, as long as you can make the explosives and come up with an idea to make money, this prince can promise you that after the success, you will be the mistress of the mansion."

"My Lord, please rest assured that what I said is all true."

So Shen Shenyu asked the eldest prince to send someone to buy charcoal, saltpeter and saltpeter, the three raw materials for making explosives.

Although the eldest prince doubted whether these seemingly insignificant things could really be used to make explosives that could blow people up, he would not miss any possibility and immediately sent people to buy them.

Then Shen Yu wrote down on paper three ways to make money: soap, rouge, and movable type printing.

The first two princes didn't care about it, because there were already people selling soap in the capital. He now used soap whether he washed his hands or his face, and it was indeed very useful. He also knew that the soap business in the capital was run by Miss Yun Ran from the Prime Minister's Mansion.

He had also thought about using soap, but because Prime Minister Yun did not take action, he could only watch countless amounts of money flow into the Prime Minister's Mansion.

He also tried to recruit Prime Minister Yun, but every time they met, Prime Minister Yun was vague with him and never made his attitude clear.

But he had already received the news that Prime Minister Yun had defected to the second prince and stood in the second prince's camp, which made him hate Prime Minister Yun very much.

However, he also knew that there was nothing he could do about it. If he wanted people to follow him willingly, he had to give them what they really wanted. He couldn't satisfy Prime Minister Yun, but the second brother could do it, so he naturally couldn't complain.

Now Shen Yu gave him a surprise. He could also get someone to do the soap business, so he wouldn't have to feel bad about the money going to the second brother.

Suddenly, the eldest prince's expression perked up, and he hurriedly asked Shen Yu: "Miss Shen, this movable type printing technology can really improve printing efficiency."

Shen Yu was very satisfied with the eldest prince's reaction. She said, to the ignorant ancients, movable type printing was a great invention and no one would not be excited.

"That's right, my Lord. Compared to the current copying and woodblock printing, the efficiency is more than ten times higher."

"You didn't lie to me, but you know the consequences of lying to me."

"My Lord, how dare I lie to you about such an important matter? I am telling you the truth. If you don't believe me, you can find someone to carve it now. You will know after trying it."

The eldest prince knew that his reaction was a bit excessive, but it was really not his fault.

You should know that books have been very expensive since ancient times, which is why ordinary people cannot afford to read.

Because the efficiency of both copying books and woodblock printing is very low, especially copying books, the quality cannot be guaranteed.

After all, everyone's handwriting is different, and there is no guarantee that everyone can copy well. Moreover, copying a book is time-consuming and laborious.

Besides, people who can afford to read must have savings at home and will not waste their precious time copying books.

Only extremely poor scholars would squeeze out time to copy books for the little money they earned.

If you want to print a book using woodblock printing, you need to carve a large number of templates. Sometimes the templates for a book can fill an entire room.

In addition, if the craftsman is distracted during the carving process and carves a wrong character, then the entire version will be scrapped and will have to start over, which invisibly increases time and cost.

Now that he had the technology of movable type printing, as long as he made the right type molds, he could print a large number of books in a short period of time. Then he could have someone specialize in this matter and recruit more people from poor families to work for him. At the same time, he could also make a lot of money from selling books.

I feel extremely excited when I think that he will have many students all over the world in the future.

"Miss Shen, you are really the lucky star of this prince. You can stay in the mansion with peace of mind. I will ask the housekeeper to select a few people to serve in your yard."

"Yes, Yu'er will listen to the eldest prince."

The eldest prince said nothing about Shen Yu's unauthorized change of his name. He picked up the soap, rouge and the method of movable type printing and was about to leave.

"Prince, please wait a moment."

"Miss Shen, what's wrong?"

"Prince, are you not going to let someone do the rouge business?"

"How much money can you earn from women's things? This prince doesn't even bother to earn money from women."

When Shen Yu heard the eldest prince say this, he chuckled.

"You don't know, my Lord, that women's money is the easiest to make."

Today, the eldest prince learned that Shen Yu could make explosives and had obtained the soap formula and movable type printing. He was in an unprecedented good mood. He did not care about Shen Yu's unreasonableness, but asked Shen Yu in a good temper: "Miss Shen, what do you mean?"

"My Lord, you are of noble status and it is impossible for you to personally participate in business on weekdays. Naturally, you don't know much about the ins and outs of this business."