Two days passed, Murong Xue stretched her waist, and then took the drawings in her hand with satisfaction and stood up.

"It's done, Ziling, let's go find Jiuyan. Give him this weapon diagram first! Murong Xue walked out while holding the drawings in her hand.

As for why she didn't get gunpowder first, it was because gunpowder was cumbersome and not so easy to make.

Murong Xue remembers that at the end of the Tang Dynasty, around the beginning of the 10th century, gunpowder began to be used in warfare. Gunpowder was introduced into the military and became a new type of weapon with great power, and this caused major changes in strategy, tactics, and military science and technology. The initial gunpowder weapons, with poor explosive performance, were mainly used for arson. With the improvement of technology, the explosive performance of gunpowder has been enhanced, and new types of firearms have also appeared. During the Anti-Japanese War, the squadron also used gunpowder weapons to fight.

In the Song Dynasty, gunpowder was more widely used in the military, the Northern Song Dynasty in order to resist the barbaric attack of Xia and Jin in Western Liao, attached great importance to the test and production of gunpowder and gunpowder weapons, in 1000 (Song Zhenzong Xianping three years) and 1002 (Xianping five years), the Shenwei Naval Army Commander Tang Fu and Jizhou regimental training envoy Shi Pu, had made rockets, fireballs and other new gunpowder weapons in the palace respectively, and were rewarded by Zhenzong. Since then, gunpowder has become an essential equipment for the Song army.

Later, the government of the Northern Song Dynasty established a gunpowder workshop in the capital Bianliang, which was a government-run handicraft workshop specializing in the manufacture of gunpowder and firearms, with "7,000 sunrise crossbows, 10,000 gunpowder arrows, 3,000 tribulus cannons (gunpowder bags with barbed iron sheets), and 20,000 leather artillery."

In 1044, Zeng Gongliang wrote "Wujing General Essentials", which recorded three gunpowder formulas and a variety of gunpowder weapons, and with illustrations, which is the world's earliest firearms production process recorded in the Southern Song Dynasty, gunpowder weapon technology became more and more advanced, and the stereotyped De'an (Hubei Anlu) used to use muskets to charge.

In the middle and late Southern Song Dynasty, there was a sudden musket, and the technology advanced a step forward to invent a far-reaching tubular firearm, the bamboo tube was changed to an iron pipe or copper pipe, and the sub-kiln was made of iron and other substances (similar to bullets) and then the gunpowder used the tension of the blast to shoot the fader out, which was the prototype of the later rifle and bullet. Of course, there must be a gun, there must be a cannon, the principle of blasting is the same, the Song Dynasty destroyed the Southern Tang Dynasty, and used artillery when capturing Jinling, and also used the Chinese chess piece with the cannon, which made the Song Dynasty the earliest use of \ Jiuyan's brother in history, one of the princes.

Murong Xue quietly stuffed the drawings into the placket of her clothes, stopped, and took a step back quietly, intending to let the person in front pass first.

"Bold, when I saw His Royal Highness the Prince, I didn't kneel!" A shrill voice rang out.

Murong Xue glanced at it, and it should be the accompanying eunuch. But getting her to kneel is impossible!

Feng Ziling instantly stood in front of Mu Tian, clenched the knife in his hand, and looked at the person in front of him defensively.

"Presumptuous, arrest these two people!" The shrill voice shouted even more harshly.

Feng Ziling drew his sword in an instant.

"Wait!" At this time, the man who was called the crown prince waved his hand to stop the guards beside him.

The eunuch beside the crown prince instantly bowed and took a step back.

"Who are you?" The crown prince's majesty was undiminished, and he walked up to Murong Xue and the others slightly condescendingly and asked.

"Just ordinary people!" Murong Xue said lightly.

The prince glanced at the two of them up and down, and there were a lot of waves in his heart. These two people are extraordinary, and with such appearances, it is impossible to be silent.

"Brother Huang! How did you get here? In the distance, Jiu Yan, who was a little hurried, walked over.

"What?! Can't I come and see you yet? The prince asked rhetorically.

"Brother Huang laughed, Brother Huang can come over, I'm too late to be happy, come, let's go into the room!" Jiu Yan stood between Mu Tian and the prince, blocked the prince's look, and warmly invited the prince into the room.

"Wait a minute!" The prince pushed away slightly and took Jiu Yan's hand.

Jiuyan's smile stiffened slightly.......

"When did the two guests come to the emperor's mansion? Why haven't I seen the prince in the house look like this? The prince slowly bypassed Jiuyan and walked back in front of Murong Xue, if it weren't for his flat figure, he wouldn't have believed that it was a man in front of him, as bright and beautiful as a crape myrtle blossom.

"These two are my friends, not from a big mansion, but I accidentally got acquainted with them when I went out last time, and invited them to the mansion to get together, these two are not from the palace, so I don't understand the etiquette of the palace, and please don't mind the royal brother, let's go into the house and chat, these two people are just civilians, and the imperial brother probably has no interest in getting to know each other!?" Jiu Yan's hand behind him clenched his fist slightly, but the expression on his face remained silent, as if Mu Tian and the two were really not worth mentioning.

Mu Tian and Feng Ziling stood there quietly like this, neither looking humble nor arrogant, as if they were noble people who had left behind an independent world, which attracted the prince to look twice.

"Huh! You're wrong, I'm interested in both of them, so I don't mind if I invite you two to my house! The folding fan in the prince's hand slapped his palm lightly, and turned his head to Jiu Yan and said.

Jiu Yan's face cracked slightly, "I'm afraid that they will give the imperial brother trouble.......

"It's okay, anyway, it's quiet in my house, it's still okay to greet two people! Ben Tai ....... My name is Jiuhuang, I don't know what the two of you call me? Jiuhuang asked.

Murong Xue glanced at Jiu Yan, and then replied, "Mu Tian! ”

"Feng Ziling!" He put away the knife in his hand and replied coldly.

Feudal society is trouble, for the system of imperial power, Murong Xue really doesn't like it, fortunately, the Jiu Yan she met didn't let them kneel down, otherwise the two would not have gotten along with Jiu Yan so well. But the prince in front of him doesn't seem to be so easy to talk to, and he doesn't know why he invited the two of them?!

"The two of you will come to my house as a guest, it just so happens that I also want to hear the two of you talk about things outside, as the prince, I rarely have the opportunity to see the outside world, and I have some yearning for this, you don't mind telling me about it!" Although it is said to be an invitation, it is clearly threatening.

At this time, Jiu Yan stood up, "Brother Huang, your mansion is in the palace, it's not good to let two outsiders in......."

The Prince's East Palace is located on the inner side of the Imperial Palace, and although it is some distance from the main hall of his father, it is still in the Imperial Palace. On weekdays, outsiders are not allowed to stay in the palace, and there is a lot of security everywhere, if these two people are allowed to enter the palace, even if he wants to protect these two people, it is very troublesome.......

"It's okay, just invite two guests. Don't worry, it's just a chat, I won't embarrass your friends. If you are worried about the safety of the palace, it is even more unnecessary, I can still take care of the prince's mansion! Jiuhuang said lightly. These two people inexplicably made him feel wrong, how could he have never heard of such a look, and his imperial brother seemed to be very nervous about these two people.

"Thank you for His Royal Highness the Prince's love, we two rough people really don't dare to enter a holy place like the palace, if His Royal Highness the Crown Prince likes to hear us talk about things outside, you can come here at any time, we are willing to talk all night for the prince." Murong Xue arched her hand and said.

"Oh?! When will a rough person be able to have such grace?! I think the two of them are extraordinary, I'm afraid they are not ordinary people, are they from other countries?! When he said the last sentence, his voice was bitterly cold.

"Those who are clear are self-purifying! We are definitely not from other countries! "Certainly not from Snowpiercer.

"Oh?!" After a pause, Jiuhuang continued, "That's it, since the two of you don't want to, I won't force it, but Ben Tai ...... We'll talk next time! Brother Huang, let's go in and talk, there are some things for you! ”

"Okay, Brother Huang, please!" While walking towards the guest house with Jiu Huang, Jiu Yan made a wave to Mu Tian and the others, asking the two to hurry back to the room.

Jiu Yan didn't expect the prince to come to visit suddenly, otherwise he would definitely inform Mu Tian and the two to stay in the room and not come out, speaking of this prince, he is the most jealous of all the brothers, for so many years, the prince and the royal brother have been very good in the reputation of the ministers, but to be able to sit firmly on the throne of the prince for so many years, it is definitely not incompetent.

Mu Tian and Feng Ziling turned their heads and walked back to their room, in fact, Murong Xue didn't intend to have too much to do with the people of this era, after all, they were not people of this era in the first place, except for Jiu Yan.

Feng Ziling and the two knew very well that if the prince insisted on letting the two go to the palace, I am afraid they would not be able to refuse, it would involve too much.

If it weren't for the last resort, they would definitely expose the space!

"I guess His Royal Highness the Crown Prince will keep an eye on us?!" Murong Xue said when she returned to the room.

"The boat will naturally go straight to the bridge, Mu Tian, don't worry too much, since we have chosen to help Jiu Yan win that top position, then it will be a matter of time before we meet other royal families!" Feng Ziling comforted.

"Well, you're right! Then we have to plan well. By the way, let's go out and find out. Murong Xue said.