The blacksmith lady is killing people in the harem, and her son is responsible for it.

After dinner, the little lion returned to his room.

Qin Wan said excitedly, "Wait a minute, I'll show you something good."

Zhao Zhen looked at Qin Wan leisurely. He hadn't been to the backyard for many days, and he actually wanted to go to bed early.

Zhao Zhen glanced at Qin Wan's belly with a gloomy look, "Oh? What is it?"

Qin Wan didn't notice anything strange about Zhao Zhen. "Wait a minute. I'll get it."

After saying that, Qin Wan went to the inner room and took out a small mechanical clock. "Zhao Zhen, take a look, what is this?"

Zhao Zhen saw the little thing in Qin Wan's hand. It looked a little cute, and there were numbers on it. "Is this Arabic numerals?"

Historically, Arabic numerals were introduced in the middle of the Tang Dynasty. They were not widely circulated at that time, but aristocratic families were still exposed to them.

Qin Wan was curious, "Hey, you also know Arabic numerals?"

Zhao Zhen raised his eyebrows, "You know all this, how can I not know? Didn't this thing come from the Tang Dynasty?"

When Zhao Zhen mentioned the dynasty in front of Qin Wan for the first time, Qin Wan's eyes lit up. She didn't expect that there was a Tang Dynasty in this world. She was a little excited, as if their history was not completely different.

"Then you also know Li Shimin?"

Zhao Zhen shook his head, "Who is this person?"

Qin Wan: “…”

Qin Wan was stunned!

Is it reasonable that there is the Tang Dynasty but no Li Shimin?

"Li Shimin is Li Yuan's son and the second emperor of the Tang Dynasty!" Qin Wan was a little anxious.

Zhao Zhen pulled Qin Wan over and she sat on his lap. Zhao Zhen touched Qin Wan's forehead and said, "You don't have a fever, why are you talking nonsense? The royal family of the Tang Dynasty did not have the surname Li but Xiao. You, have you read too many storybooks?"

Qin Wan: “….”

Qin Wan finally realized at this time that the world she traveled through was completely inconsistent with the history she had learned.

Zhao Zhen thought about where Qin Wan used to live, and understood that when she was a child, she probably didn't have the opportunity to learn this knowledge. Thinking that she always called him by his name directly, he didn't mind. But now that she is the Crown Princess, her every word and action in terms of etiquette and rules are all under the attention of others, so he also gave her a reminder.

"However, when it's just you and me, it's okay for you to call me by my name, but in other situations, you have to call me Prince."

Qin Wan heard Zhao Zhen mention the title and realized that she was wrong. In ancient times, people rarely called their husbands by their names. She was indeed too careless and too casual with Zhao Zhen. "Okay, I will call you Prince from now on."

Zhao Zhen carefully played with the clock in her hand and coughed lightly, "When we are alone, it's okay to call me by my name, or you can call me husband!"

Zhao Zhen's eyes were slightly deep, hinting at something.

Qin Wan: “…”

Qin Wan was a little shy, especially since she was still sitting in Zhao Zhen's arms. She immediately fled from Zhao Zhen's arms like a frightened little rabbit.

"I haven't taught you how to use this clock yet, let me explain it to you in detail..."

In order to ease the ambiguous atmosphere, Qin Wan hurriedly explained to Zhao Zhen the principles of the mechanical clock and how it told time.

In ancient times, one hour was equal to two hours, and when people talked about time, it was generally not accurate.

Zhao Zhen's original focus was on Qin Wan. As Qin Wan explained, Zhao Zhen began to pay more attention to the clock. "Hearing what Wan Wan said, the clock is indeed more accurate. It's very practical! It's just a little small!"

Qin Wan smiled and said, "The size can be changed. This is a sample of the first batch of goods. It was newly delivered from the workshop today. After the store opens, our workshop will mass-produce popular styles based on market popularity."

"Oh? When will your store open?"

Qin Wan's eyes turned, and she thought of what Zhao Zhen said about going to the Lantern Festival on the 15th. "Then let's choose the Lantern Festival. It's a good opportunity for me to go out of the palace and have a look!"

Zhao Zhen knew that Qin Wan wanted to go out of the palace more often, but she was the Crown Princess, so how could she go out easily? "Okay, let's open the store that day!"

Qin Wan thought of the exposure methods of future products, and looked at Zhao Zhen with sharp eyes, "This clock is given to you. Put it in your office."

Zhao Zhen nodded, "Alright, put it in my study!"

"No, you are the only one in the study, how can others see it? You have to put it in a crowded place."

Qin Wan also wants Zhao Zhen to advertise!

Zhao Zhen's eyes turned and he understood what Qin Wan meant, then he laughed, "Okay, let's do as you say, but one clock is not enough, take out a few more, I will send one to my father and mother, so that my father can meet more officials."

Qin Wan: “…”

Send a clock to the emperor and the empress?

Is it unlucky during the Chinese New Year?

Given the emperor's physical condition, will he not be able to survive?

However, it would be a good thing if Zhao Nanxiao died.

Qin Wan raised her lips and said, "Sure, I can give you as much as your father wants, hehe!"

Zhao Zhen looked at Qin Wan, who was smiling like a little fox, and felt that what she said was strange, but couldn't figure out what was strange. "Okay, I'll go to the Taiji Hall tomorrow morning and take her there."

"Hmm!" Qin Wan came closer again, "Do you think I can make a lot of money from this business?"

Zhao Zhen found it funny to hear about the huge sum of money, but it seemed good if the Eastern Palace had more income, "You can make money, this is a unique thing!

However, the craftsmen must keep a close watch on this and not let it leak out. If others learn it, there will be competition.”

Qin Wan was not afraid of competition. "Don't worry, this is just an appetizer. I have many other ways to deal with it!"

Zhao Zhen really liked Qin Wan's confident look. He pulled Qin Wan into his arms and said, "It's getting late. Let's go to bed!"

Qin Wan didn't struggle, but nodded with a red face.

The next day.

The little lion woke up early because he was worried about going to school and didn't sleep well last night.

Eunuch Gao helped the little lion to put on his clothes, and then reminded him: "Your Highness, when you go to Hongwenguan, you can't be as naughty as you were in the East Palace, and you must get along well with your classmates."

The little lion patted his chest and said, "Don't worry, I'm a good kid. I won't let the tiger bite anyone!"

The little lion always used the tiger head to scare the young eunuchs who followed him, and it always worked.

It is for this reason that Eunuch Gao specifically instructed the little lion.

It is true that the little lion is the grandson of the emperor, but the children who take classes with him are all of high status. They are the legitimate grandchildren of various families. The power behind these children is not small!

The future of the little lion, and whether he can get the support of the court officials, is closely related to these children.

"Well, Your Highness, you need to have a good relationship with those children."