Yesterday, Du Zijun had already seen the third concubine's room, and he worked harder to clean her courtyard today. The small yard was swept back and forth three times, striving to leave no dust.

The door of the third concubine's room was opened, Du Zijun instantly ran to the door, and when he saw the third concubine's room coming out, he greeted her with a smile on his face: "Third lady, good morning!" ”

"You've been new lately?" The third concubine looked him up and down and asked.

Du Zijun smiled, "I just came in, and when I saw the third lady so beautiful, I couldn't help but want to talk to you!" ”

"How do you talk, you minion!" Ping'er said.

The third concubine shook her hand at Ping'er, with a light smile on her face, "My yard, are you in charge of cleaning it?" ”

"How can I be so blessed! If the third lady knew what I was doing, I was afraid that I wouldn't be able to sweep this yard. Du Zijun lowered his head in frustration.

This aroused the interest of the third concubine, "Then I would like to know what you do." ”

Du Zijun's face turned red, and he spit out three words to the third concubine room embarrassedly, "Come at night!" ”

Ping'er immediately showed a disgusted expression, and even covered her nose with her sleeve. The third concubine didn't have that big reaction, the three sects were born in the ninth stream, and she didn't feel that she would come to the night to make a wait.

"This is also a job to eat by yourself, which is very embarrassing." The third concubine said with a smile.

Du Zijun looked at her happily, thanked her again and again, and asked at the end, "After that, can I still come here to sweep the floor for you?" ”

"Absolutely! If you like it, stay here and do a sweeping job. The third concubine was so good that Du Zijun didn't hide her liking, and turned to Ping'er and ordered, "You go and tell the housekeeper that I will be responsible for the courtyard on my side in the future." ”

Ping'er didn't know what was crazy about the third concubine's room, how could she let the third concubine come to clean her yard overnight, but the temperament of the third concubine's room made her dare not say much.

"What's your name?" The third concubine asked.

"My name is Wu Sanbao, you can call me Sanbao!" Du Zijun bent over and said with a smile. It seemed that he had already won her favor first, and the method Bai Shuqin said really worked.

The third concubine repeated his name and smiled, "Good name!" ”

What made Du Zijun happy was not only that he had won the favor of the three concubines, but also that he had finally gotten rid of the fate of pouring night incense. At this moment, he could literally walk sideways.

Before noon, Du Zijun ran to Baohetang, and before he entered the door, he laughed and showed off to Xu Fei, "Guess what good things happened today!" ”

Xu Fei glanced up at him, "The night incense poured out the gold." ”

Du Zijun's face was like eating a fly, and he complained to him, "You just can't spit out ivory from your dog's mouth, and you can't know what happened to me!" ”

"A dog's mouth can't spit out ivory, and if you want ivory, you have to talk to the elephant." Xu Fei corrected him seriously.

Beizhu couldn't help but laugh as he listened to the two bickering, they had simply become a source of joy for Boholdo.

Du Zijun is in a very good mood today, and he doesn't plan to be like Xu Fei. He came to Bei Nagisa and sat down opposite her where the patient should have been sitting, "Guess what's going on today." ”

"I, I don't know." Beizhu shook his hands, and his face was full of begging you not to ask me about my expression.

Du Zijun didn't care what her expression was, he laughed and patted the table, "From now on, I don't have to pour night incense!" My handsome and chic appearance finally has a place to use. ”

"Which girl is blind?" Xu Fei said coldly, and the choked Du Zijun almost wanted to reason with him.

Fortunately, Beizhu pulled him in time, and praised him with a sweet smile, "Brother Zijun, I know that you are the best!" ”

Xu Fei held his forehead and sighed, "Another blind one!" ”

"You nerd, you're just jealous of me! I don't know as much as you! Du Zijun snorted, raised his head arrogantly, and then became excited again, "I want to talk to the third princess!" ”

"Hey, Brother Zijun!" Beizhu shouted to Du Zijun, who was already about to rush out of the door, "Sister Bai went to Sima Liang with the third prince today, not behind." ”

Du Zijun hurriedly stopped his feet, and said with pity on his face: "Go to Da Sima, why don't you call me?" ”

There is a grassland on the outskirts of the capital, and behind the grassland is a dense forest, where Sima Liang lives. Because he loved to keep all kinds of horses and invent all kinds of strange things, this place was for him.

In the morning, the dew on the grass had not yet dried, and in the sunlight, it sparkled like jewels scattered all over the ground. The butterflies are in pairs on the meadow, and you can faintly smell the earthy scent.

Sima Liang's dwelling design is also different from others, with only four or five small cabins built on the grassland, with an unknown red flower planted in front of the door.

A few horses were grazing leisurely not far from the hut, and they were not frightened when they saw a carriage coming.

"It's a great place." Bai Shuqin got down from the carriage and sighed, she stretched and took a deep breath of fresh air.

Zhuo Jinxuan took her hand and said dotingly: "If you like it, you will rest here tonight." ”

Sima Liang heard the sound outside, quickly untied the apron on his body, and ran out from inside to greet him. He didn't greet Zhuo Jinxuan politely, and came directly to Bai Shuqin, "Looking forward to the stars and the moon, I can be regarded as looking forward to you." ”

Bai Shuqin looked at Zhuo Jinxuan, and Zhuo Jinxuan also didn't know what Sima Liang meant.

Sima Liang looked behind Bai Shuqin, didn't see Du Zijun, and asked curiously, "What about the kid?" Why didn't you come along? Have you finally driven him away? ”

"No, he's busy doing other things." Bai Shuqin explained with a smile, and suddenly she smelled a familiar smell, which made her frown, and turned around to ask Zhuo Jinxuan, "Did you smell anything?" ”

Zhuo Jinxuan sniffed vigorously, there was indeed a strange smell, he approached Sima Liang, and the smell was indeed emanating from his body! He fanned it with his hand, "What does it smell like on you?" ”

Sima Liang looked at Bai Shuqin's eyes with excitement, "Have you smelled it?" This is my latest research. ”

"You're working on gunpowder?" Bai Shuqin was a little shocked, gunpowder in this world should not have been invented yet, and it was still the era of hard weapons. If Sima Liang really researches it and is discovered by someone with a heart, he is afraid that it will cause turmoil in the world.

"Sure enough, you know!" Sima Liang had an expression of "You understand me", and stretched out his hand to invite Bai Shuqin and them into the room.

The smell of gunpowder in the room was even stronger, and Bai Shuqin covered his mouth and nose with his sleeve, but he still couldn't stop the smell. Zhuo Jinxuan also felt panicked, "Liang, what are you doing?" Shu'er, let's go out! ”

Bai Shuqin followed Zhuo Jinxuan, and when she came outside, she put down her sleeves and breathed heavily.

The wooden house Bai Shuqin and Zhuo Jinxuan said that they would not go in, and Sima Liang had no choice but to take them to the mansion not far from him.

On the way, Sima Liang told Bai Shuqin that he had heard Du Zijun say things in Jiangzhou, which triggered his determination to invent gunpowder. It's just that now he has hit a bottleneck, and the gunpowder he invented will only emit thick smoke, but it can't explode.

Bai Shuqin blamed Du Zijun for talking too much, she just casually told him some modern guns and ammunition. Although she can use it and disassemble it, she really doesn't have the ability to make it completely from scratch.

"Madame, how is it that I have never heard you speak of these things?" Zhuo Jinxuan's eyes narrowed slightly, and the vinegar smell was obvious.

Bai Shuqin snorted, "That's just a joke, don't take it seriously." ”

Sima Liang didn't think so, "This is for national security, if it is really invented, that kind of thing in Jiangzhou can completely minimize the casualties." ”

What Sima Liang said is not unreasonable, there is no good or bad gunpowder, the key is the person who uses it. What's more, according to the historical process, even if Sima Liang can't invent it, there will be Sima Dark's invention in the future.

However, Bai Shuqin doesn't know much about this, after all, not everyone who eats chicken should care about how the chicken comes from.

She thought for a while and said to Sima Liang: "I only know the recipe, but how to do it and what things can be invented, you still need to slowly explore." ”

It's just that Fang Zi is enough to satisfy Sima Liang, and he asks urgently: "What is Fang Zi like?" ”

"Potassium nitrate, sulfur and charcoal powder, the three ingredients are modulated in proportion. Potassium nitrate seems to be three-quarters, but I can't remember exactly. ”

This is a recipe for black and gunpowder, and Bai Shuqin only remembers this briefly. Although it is not as good as modern weapons, it is also a great improvement for this world.

Sima Liang kept the three materials in mind, and he was still a little puzzled, "I know what sulfur and charcoal powder are, but what kind of substance is this potassium nitrate?" ”

Bai Shu Qin froze, what should potassium nitrate be called in ancient times? She frowned and thought seriously, she read the book in this world and went through it in her mind, but she didn't find the corresponding substance.

"Is there anything else that can be replaced?" Sima Liang asked.

Bai Shuqin stretched out her hand to Sima Liang and motioned for him not to speak, she had to think about it. Zhuo Jinxuan smiled and said to Sima Liang: "Let her think about it." ”

Sima Liang nodded, hoping that Bai Shuqin could quickly come up with it and let him invent a new weapon as soon as possible.

The mansion was in the middle of a secluded forest, and there was no one else within a radius of ten miles, except for a small village in the distance. Although it is much better than a wooden house, it is still just an ordinary courtyard.

The courtyard was made of bluestone bricks, and the door of the house was not painted red like other officials, but was simply a wooden door with red couplets pasted on it.

If you don't say it, you will never guess that this is Sima Liang's residence, it is really very simple.

Sima Liang stepped forward and pushed open the door, except for the paving of cobblestones, there was no treatment on both sides, overgrown with weeds, and white wild chrysanthemums were scattered in clusters in the yard.

"Ryo, how long have you been abandoned here?" Zhuo Jinxuan looked around.

After a year, Sima Liang has been living in a wooden house, and only a few servants have been left here to tidy up. The weeds in the yard, only in summer Sima Liang will let people remove the grass, and they will grow at any other time.

The doors of the hall and the doors of the other rooms were closed, and Sima Liang was slightly stunned, "This group of people, I'm lazy when I'm not there." Give it all to me! ”

With this roar, the two men and two women hurriedly opened their respective rooms and came out of the room, apparently taking a nap.

The woman who was wearing a cyan cotton dress and the crow's feet at the corners of her eyes could not be covered by powder were the first to trot over, "My lord, why did you remember today?" ”

"The three princes and the three princesses will come to stay for two days, and you should quickly go and tidy up the room." Sima Liang said with a straight face.

The woman glanced behind Sima Liang, promised to turn around and greet those who had not yet run behind her, and made the tea, and tidied up the room, and the whole atmosphere became busy.

Sima Liang beckoned them into the hall, Bai Shuqin stopped in place, she remembered that when she looked through the medical book before, it was recorded that the soil nitrate was like potassium nitrate.

Thinking of this possibility, Bai Shuqin hurriedly called out to Sima Liang, "You can use earth nitrate instead." ”

"Earth? I have a lot of this! Sima Liang's spirit was lifted.