Except for Bai Wanyi's firearms workshop, where water could not get in, the rest of the place was leaking like a sieve.

Qin Wan naturally knew why Bai Wanyi didn't train his own people. The firearms workshop was set up at the border, so naturally the people were trained there. After returning to Beijing, he was constrained everywhere, so naturally he did everything he could to save money. Even if Bai Wanyi wanted to train his own people, she couldn't do it.

The more she talked, the more mistakes she would make. Qin Wan simply kept silent. She was just curious about how far Bai Wanyi's telescope had progressed.

Qin Wan opened the window and looked at the stars in the sky with a telescope.

A cold wind blew in through the window. Xie Qing looked up at the sky. Even in winter, the stars were still hanging in the dark sky, trying hard to shine their light.

Qin Wan tried to turn the telescope and adjust the focus. The stars in the sky became clearer and clearer. After watching for a while, she reached out to Xie Qing and said, "Give me the telescope."

"I haven't seen it either." Xie Qing muttered, but still gave her Qin Wan's telescope.

Qin Wan took her telescope and looked at the stars in the sky. She raised the corners of her lips and said softly, "It seems that people from the future can't always be ahead of others."

Xie Qing didn't hear clearly and asked, "What did you say?"

Qin Wan shook her head, handed him her telescope and motioned him to look.

The dark night is dotted with stars, but the one that people can see at a glance is always the most dazzling star.

But with a telescope, even the stars that are far away and have only faint light can be seen to have dazzling light.

Xie Qing was so engrossed in watching for a moment that he noticed something was being handed to him. He looked down and saw that it was the telescope he had brought.

Qin Wan said, "Come and see the difference between the two telescopes."

Xie Qing took it and looked at it for a while. He put down the telescope and closed the window. "Your telescope can see far and has high clarity, but the telescope made by the Bai family seems to be more sophisticated and can control the distance."

Qin Wan nodded. Bai Wanyi's telescope had a knob to adjust the focal length, which was very useful when the view was unclear, but the telescope she made herself did not work.

However, if it comes to seeing farther and with clearer vision, Qin Wan is very confident that her own telescope is better.

Xie Qing grabbed Qin Wan's binoculars and refused to let go. "Shall we exchange?"

Qin Wan was naturally happy. She also wanted to know how Bai Wanyi's telescope was made so sophisticated, what the parts for adjusting the focal length looked like, and whether she could make them herself.

Moreover, if the telescope can be made smaller, can it directly replace the magnifying glass?

Or perhaps see something even smaller?

Qin Wan thought about it a lot, but then sighed: "My people have been taken away by His Majesty. The people I have are all apprentices. It takes a lot of effort to train them."

Xie Qing encouraged her: "You can train one, but you can't train a second one? I believe you can do it. When you are done, you must give me one."

Qin Wan shook her head. How could it be that easy?

If it is a simple magnifying glass, the thicker the lens, the more difficult it is to ensure its clarity. Doing this requires a craft, not to mention that the later polishing is also very important. Doing this requires not only craftsmanship, but also a sense of touch.

Seeing that she stopped talking, Xie Qing stuffed the telescope into his arms, opened the window and said, "You have agreed. I am leaving now."

Xie Qing jumped out of the window. In front of the stunned Tao Yao, he did not forget to turn around and close the window. He also warned Tao Yao: "Your guards are too lax. You need to increase the manpower."

Tao Yao watched Xie Qing jump over the wall as if nothing had happened, without alerting the Qin family's guards. She blinked her eyes, then ran into the bedroom after realizing what was happening: "Miss! That Crown Prince is too... too..."

She couldn't explain it. Was there really a prince who would break into someone else's house, break into someone else's boudoir, and then complain that the other family's guards were too lax?

Qin Wan played with the telescope and waved her hand, saying, "It's okay, pack up and go get some rest."

"But our guards really can't stop His Royal Highness the Crown Prince." Tao Yao sighed, "Should we ask the Marquis to strengthen the guards?"

Qin Wan wanted to shake her head. Who could stop His Royal Highness the Crown Prince?

But then she smiled and said, "Tell grandfather. I want to see if His Royal Highness the Crown Prince can break in next time."

"Does the prince still come to our house to climb over the wall every day?" Tao Yao wondered.

Qin Wan curled her lips and chuckled, then took the telescope and tapped her head lightly: "Naughty."

"Miss." Tao Yao didn't understand, but when she saw her young lady smile, she also became happy.

The third day of the New Year.

Xie Qing strode into Duke Du's mansion and walked towards Prince Du's courtyard with ease.

As soon as I entered the door, I saw a beautiful woman.

The woman stepped forward and saluted: "Excuse me, sir, who are you?"

"I'm the prince." Xie Qing had never seen this woman before. "Who are you? Are you new here?"

"Your servant greets His Royal Highness the Crown Prince." Ding quickly kowtowed and knelt, "Your servant Ding."

"It's you." Xie Qing suddenly realized that it was the one from Wanhua Tower. He looked at Ding and said with a smile, "They are a good match in appearance. Where is your prince?"

Mrs. Ding stood up and led the way: "He was beaten yesterday and just woke up now, lying down."

When Xie Qing entered the bedroom, he saw the pitiful Du Shizi lying on his stomach. His face was pale. He went forward and lifted the quilt: "Let me see if he can move."

"Cold!" Prince Du said angrily, "You are not a righteous person! Who am I helping? You didn't even bother to come and see me."

"I'm here, aren't I?" Xie Qing took a look and hit him, but he didn't use any harsh force. "Can you still move?"

Prince Du looked at him with his eyelids rolled up: "What? What if I move? What if I don't move?"

Xie Qing shook the telescope in his hand and said, "We got a good thing. Let's go out and take a look."

Prince Du had never seen this telescope before. His eyes lit up and he asked, "Have you made it?"

Xie Qing had the telescope for some time. He originally asked someone to make it, but no matter how much they tried to take it apart, they couldn't figure it out. Now that he had taken this out, Prince Du guessed that it had been made.

Xie Qing shook his head: "Miss Qin did it, let's go and take a look."

Prince Du quickly got up and called someone in to put on his clothes.

Who knew it was Ding who came in? Prince Du was instantly overwhelmed: "I've already told you, since I've redeemed you, you're now a good citizen. You don't have to stay in my house as a servant anymore. Go find your parents and brothers."

Mrs. Ding shook her head and took some clothes to help Prince Du get dressed. "If I enter a place like that, my reputation will be tarnished. I can't go to my parents and brothers and cause them trouble."

Prince Du frowned. This had truly caused him a great deal of trouble. However, when he looked up and saw Xie Qing's eyes that looked pleased with himself, he was furious: "Who am I doing this for? And you're still laughing at me!"