Zhuo Ruozhen came to the small cross courtyard of the west wing of the main courtyard, and happened to meet Zhuo Xiao coming back.

"Fourth sister, is there anything wrong with me so late?" Zhuo Xiao asked.

Zhuo Ruozhen suddenly felt a little weak, today Zhuo Ruoning made a big show in front of everyone with her arithmetic, she immediately came to borrow "Nine Chapters of Arithmetic", which will inevitably make people think that she wants to compete with her sister.

She smiled: "I just asked the second brother if he had bought a new one recently. Books, not in a hurry. ”

Zhuo Xiao: "It just so happens that Shidetang has published a set of "The Song of the Two Phoenixes", and I will show it to you. ”

Zhuo Ruolin followed him to the study, but saw the light leaking from the window of the study, Zhuo Xiao said "Huh", pushed the door into the room, and saw Zhuo Ruoning sitting in front of his desk, biting the tip of the pen with a hideous face.

"Niannian, why are you here?" Zhuo Xiao said strangely.

Zhuo Ruoning hurriedly stood up: "Second brother, borrow your study for use, I told the second aunt, I didn't touch your things." Second brother, do you have any books here about the preparation of gunpowder? ”

"Gunpowder?" Zhuo Xiao was puzzled: "The recipe for the preparation of gunpowder is a secret of the imperial court, how can there be such a book on the market?" ”

It's a secret!

Zhuo Ruoning pouted in disappointment, "I wanted to write a book to fool him, but there is no reference material, and this project is too big." ”

Zhuo Xiao walked over and saw a stack of papers spread out on the desk, which read:

Research on the Invention and Application of Gunpowder

Chapter 1: The Invention and Early Application of Gunpowder

Section 1: The invention of gunpowder

1. Understanding and utilization of saltpeter, sulfur and charcoal

2. The development of the practice of Dan and the practice of Dan arts

3. The relationship between Lian Dan and gunpowder

Section II: Early Applications of Gunpowder

1. Gunpowder and medicine

2. Gunpowder and the military

……

Chapter 10 The Widespread Use of Gunpowder in Life

……

The outline alone is deleted, deleted, and densely written on a piece of paper.

Zhuo Xiao was no longer surprised by this sister's brain hole, and held his forehead: "What are you doing with this?" ”

Zhuo Ruoning told him about Xu Jinchen coming to her, and said angrily: "I kindly reminded him, who knows that he is not reasonable at all." ”

Zhuo Xiao's face became solemn, and he said solemnly: "Jinyiwei is the emperor's pro-army, responsible for investigating major cases, arresting criminals, and interrogating criminals, and is only loyal to the emperor. The leakage of the secret recipe for gunpowder is not a trivial matter, and you are so familiar with gunpowder that he naturally wants to investigate. According to Xu Jinchen's iron-faced and selfless style, agreeing to tolerate for a few days is already unprecedented. ”

"So I had to make up a book myself."

Zhuo Ruozhen knew the seriousness of this matter, and asked nervously: "How can you make it up yourself?" Even if it is made up, if Jinyiwei sues the emperor and says that the Zhuo family's private possession is prohibited. Books, this book is ironclad evidence, and our family will suffer when the time comes. ”

This Zhuo Ruoning didn't expect it, so she had to ask Zhuo Xiao for help: "Second brother, what should I do?" If I hadn't handed over the book, he wouldn't have let me go. ”

Zhuo Xiao looked at the paper on the table and pondered, got inspiration from the outline, took the pen in her hand and said: "It's not a bad idea to make up a book, but you can't write it like this." ”

He circled the words "alchemy and gunpowder" with a pen, "Since gunpowder was invented by accident during alchemy, let's compile a booklet of alchemy, without too many words, and the information is easy to find." ”

It would be easier to have the second brother to help with this, he thought about it more thoroughly, and said that he would go to the bookstore another day to find a few alchemy books and come back, and the paper would have to use old paper.

Out of the study, the two sisters returned to Moon Shadow Xuan together, and Zhuo Ruozhen asked with a heavy heart: "Nian Nian, are you familiar with Xu Jinchen?" ”

"Of course I'm familiar, he's saved me several times, but he's not very enthusiastic."

Zhuo Ruozhen wanted to speak several times, and when she walked to the front porch of Moon Shadow Xuan to separate, she finally couldn't help but say: "Xu Jinchen is a Jinyi guard, the person around the emperor, if you accidentally say the wrong thing or do the wrong thing in front of him, it will inevitably reach the emperor's ears, so it's better to stay away from him." ”

Zhuo Ruoning nodded again and again: "I remember, I will definitely be careful." ”

She turned around to leave, but Zhuo Ruozhen stopped her, and said, "I heard that the emperor seems to want him to be the lord of Shangjiang County." ”

"Who?" Zhuo Ruoning was struck by lightning, and the whole person was stunned, "Is Xu Jinchen the fiancé of the county lord of Jiangdu?" ”

"I don't know what's going on, I'm all listening to others. The emperor originally wanted Geng Kan to be the county lord of Shangjiang, but after knowing that he had a marriage contract, he dispelled this idea and turned to reuse Xu Jinchen, who was once rumored in the capital to want the county lord of Shangjiang. ”

Zhuo Ruoning felt like she had been hit on the head. Son, I returned to the room, and the more I thought about it, the more sad I became, and I felt that I was the most pitiful person in the world.

"Spring tea, did the five girls sleep?" Zhuo Ruoling's voice.

"Nope." Chuncha glanced inside and whispered, "Somehow, I've been sighing since I came back from the main courtyard." ”

Zhuo Ruoling walked into the room and saw Zhuo Ruoning spread out on the bed in a large shape, her mouth pouting, and she looked angry.

"What's the matter, who bullied you?" Zhuo Ruoling's stomach was extinguished by her declining appearance, and she couldn't help but ask with a smile.

"Third Sister ~~~"

Zhuo Ruoning was like an octopus that had come back to life, suddenly turned over, and pounced on Zhuo Ruoling with a mournful tail.

She thinks that she has finally tasted the taste of broken love, which is a very commemorative thing, and she is fully qualified to be hypocritical, painful, and moaning without illness. Like all lovelorn girls, you have to do something to pay tribute to the first love that was ruthlessly cut off before it had time to sprout, such as writing some mournful poems and facing the wind. Tears for everyone to comfort or something.

"What are you doing here?"

However, the third sister pushed her away in disgust, and she didn't mean to pity her at all.

Zhuo Ruoning pondered for a long time, and didn't squeeze out a single tear, so she had to give up such a high-tech performance of using tears to win sympathy, and sat up straight and asked, "Third sister, have you heard of Xu Jinchen?" ”

"Have you heard of it, the fiancé of the county lord of Jiangdu?"

Another hammer fell directly on the Tianling cover, and Zhuo Ruoning said angrily: "Why do you all know that I am alone in the dark?" ”

has a crush on the fiancé of the county lord of Jiangdu, and this matter is too distant.

"He's a joke in the whole capital, it's normal that you haven't heard of it in Pujiang."

Zhuo Ruoning was stunned, and hurriedly pulled her to the edge of the bed to sit down, and asked, "Why do you say he's a joke?" ”

If you want to listen to gossip, now you are looking for the right person, Zhuo Ruoling suddenly forgot the original intention of coming here, and said mysteriously in her ear: "I heard that Xu Jinchen is the illegitimate son of Wei Guogong and Xuan Miaoguan's sister-in-law. When the sister-in-law was pregnant with him, the Duchess of Wei tried every means to kill him, but unfortunately things did not go as she wished, and the sister-in-law ran away. ”

Zhuo Ruoning was dumbfounded when she heard this, and asked nervously, "What happened later?" ”

Later, his sister-in-law gave birth to a child outside, Wei Guogong was afraid of his wife, and that time happened to be the mourning period of the old Wei Guogong, he didn't dare to take the child back, and he couldn't let the blood of the Xu family flow outside, so he had to ask the emperor to find a way. The emperor was merciful, and for the sake of the old Duke of Wei, he took the child to the palace to be raised by the first queen. ”

Zhuo Ruoning sighed: "Then the nun must be very beautiful, does Xu Jinchen look like her?" ”

Zhuo Ruoling didn't care that she was not born at all when the incident happened, and concluded: "Of course, otherwise, no matter how you are fascinated by Wei Guogong, the Xu family is not something that everyone can climb." ”

With a soul-soothing beauty and a miserable life experience, such a man is simply a killer for an ignorant girl like Zhuo Ruoning, she clutched her chest and asked, "Did the Duchess of Wei accept him later?" ”

"What a ruthless character the Duchess of Wei is, she ran to the palace of the first queen and cried and made a fuss, wanting to reconcile with the Duke of Wei, saying that there was no illegitimate child without her, and the emperor had to send the child to Wudang Mountain to Zhang Zhenren to raise, this gift was fifteen years, and it was not picked up until three years ago."

"No wonder Xu Jinchen is always cold, it turns out that his life experience is so miserable." The resentment towards him just now suddenly disappeared without a trace.

Zhuo Ruoling pretended to sigh, and seemed to sympathize with his plight: "But isn't it, the emperor originally wanted him to be the county lord of Shangjiangdu, but the Xu family didn't recognize his identity, and he didn't even have an official household registration, so this matter has been dragging on." The county lord of Jiangdu was miserable by him, and the marriage dragged on for three years, which has become a joke after everyone's tea and dinner. ”

Zhuo Ruoning somewhat understood the mood of the Jiangdu County Lord.

The next day, Zhuo Xiao found a copy. When Daozang came back, Zhuo Ruozhen helped sort it out, and Zhuo Ruoning worked hard to write a book and compile a book of "Interesting Stories of Golden Pills". In order not to make her handwriting, she wrote with her left hand throughout the whole process.

"Golden Pill Interesting Facts" is written in the form of short stories, divided into three volumes, volume one contains the wonderful alchemy method of Baoling sand, the ascension technique of immortals, the secret of the hair, the secret of the golden pill of the Taishang Holy Ancestor, the secret recipe of alchemy such as the method of making the big dan of the dust grits and the meridian spirit sand method, the second volume contains the secret methods of refining medicinal materials and making pills in the Danfang, and the third volume is the secret of the Yellow Bud Dadan. Several of the recipes for refining sulfur and nitrate are similar to the recipes of gunpowder, which perfectly explains why she can smell the gunpowder of the Fuller Paradise.

Copying books is still quite fast, Zhuo Ruoning has the ability to use several things, and can chat with her sister about gossip while writing hard, and the thin booklet was completed in two days. Zhuo Xiao said that he wanted to use it to make it old, but he turned two pages, and he was fascinated by the little story in it with Zhuo Ruozhen, and after reading it, he couldn't get enough of it, so he copied another copy.

The book is done, and her grandfather's birthday banquet is coming soon, so she has to hurry up and make her glasses, and she has been busy these days, so that she has forgotten all about the loss of love.

Zhuo Ruoning drew the drawings and began to tinker with the horn frames. She sawed the saw blade for a long time, the black horns were thick, and her two thin arms couldn't be sawed at all, so she had to go out to find a craftsman, but fortunately there were elders this time. Hold it, and she doesn't need to worry about the money.

When making the frame, Boss Song of Huaiyufang also sent polished lenses, she measured it with the method of convex lens imaging, and found that the curvature was deviated, the power was a little lower, and the lens was thinner.

Boss Song looked at her and looked at her, a candle and a measuring rope, pulled out the reflection of the candle on the wall, and measured it with a rope, and could judge that the thickness of the lens did not meet the requirements, and I couldn't believe that this method worked.

Zhuo Ruoning explained to him the principle of convex lens imaging, and after Boss Song understood the principle, he admired her so much that he threw himself to the ground.

Boss Song is also a craftsman, and helped to inlay the lenses into the horn frame, and trim the edges and corners.

When his grandfather came back, Zhuo Ruoning took it to him to try it on.