Several soldiers stepped forward one after another, each carrying two long white porcelains one foot long, half foot wide and three inches thick in their hands. The long porcelains were hollow inside and filled with gunpowder, with only a small opening connecting to the outside. The soldiers put them in a deep hole that had been dug, and then tightly twisted the fuse exposed on the outside together.

Zhao Yu stepped forward and asked everyone to retreat. He lit the torch himself and then ran away quickly.

Then, a roar was heard. Above the deep cave, rocks were scattered down, and the city wall, about thirty meters long, was blown up with a gap of nearly half a meter.

When the smoke of gunpowder dissipated, Zhao Yu stepped forward and carefully measured the length of the gap, checked the degree of damage to the city wall and the size of the holes that were blown up.

He turned to Zhou Xian who was walking over and said, "The long walls of ordinary Wubao, about thirty such fried porcelain are enough. If a big city wall like Jinan City wants to completely collapse, the amount of gunpowder should be increased by at least ten times, and large fried porcelain should be used."

Zhou Xian nodded and said, "Brother Zhao, thank you for your hard work, let's do it today! One thousand such small long porcelains will be made first, and they will be transported to North Korea and southern Liaoning respectively."

Zhao Yu said anxiously: "I want other good things to show you!"

Zhou Xian smiled, "I have something to do today. Let's wait tomorrow! I will send a group of generals who have been on the front line to check. As long as your things are what they need, they will definitely not miss them. In addition, I need to list a table for me that records the range, power and advantages of various firearms, so that it is easy to judge."

Zhao Yu nodded and said, "This is easy to deal with. I will do whatever you say. But in terms of money..."

Zhou Xian looked at his businessman-like smirk and said with a faint smile: "Don't worry, I will give you an extra 3,000 taels of silver every month from now on. As long as the things you make are endless, they will definitely make a fortune. But your face as a profitable businessman is really annoying."

Zhao Yu curled his lips and laughed: "It's not okay if you are not a tyrant businessman! Now there are nearly a thousand craftsmen under my command, and they all cry and shouted to ask me for money. Just like some time ago, Lord Song wanted to build a blast furnace, saying that it was to increase the strength and hardness of the iron so as to make better weapons. I asked, "Oh, he would have to ask five thousand taels of silver at once, and it would be the first investment. What is Lord Song's identity? He said this. Do I dare say no? In the end, I could only piece it together and finally got him five thousand taels of silver. But others also want silver! I'm so annoyed that every day! Brother Zhou, if you have money, you can add a little more! I promise to make a better and more powerful firearm in the future."

Zhou Xian thought for a while and said, "You just say it! How much do you need to add?" Seeing Zhao Yu's eyes rolling around, Zhou Xian suddenly felt a little regretful and hurriedly said, "I also need money everywhere now, don't be arrogant, the lion opens his mouth!"

Zhao Yu smiled and said, "No more, not more, just add another 3,000 taels."

Zhou Xian's face changed slightly and he said, "Get out."

Zhao Yu hurriedly said, "Don't be angry! Let's discuss it again. Two thousand taels are fine. One thousand taels, one thousand taels, no more can be missing."

Zhou Xian did not refuse this time and directly agreed to him.

Seeing Zhao Yu go away, Li Dingguo said, "This is the master you call, and it doesn't look very good! But you can see that he has a good relationship with you."

Zhou Xian smiled, "Don't underestimate him. The existing artillery in the army is either made by him or improved. There are also flintlock rifles, and all these are made by him based on the book. It can be said that he has improved the firearm equipment of our army by his own efforts. Brother Ning Yu, tomorrow you will lead your troops first, and I will give priority to the supply of any firearm you need."

Li Dingguo nodded and asked, "I heard that Li Kai's troops and I left on the same day. Do you have enough ships?"

Zhou Xian smiled and said, "Don't worry. I have ordered the call of all the large merchant ships in Jiaozhou and Zhoushan. Not to mention you, even if the number of people doubles, there will be no problem. In addition, in addition to the nearly 7,000 cavalry you have, I will transfer one thousand cavalry from southern Liao to you."

Li Dingguo frowned slightly, "How many cavalry do you have left in southern Liaoning?"

Zhou Xian replied: "There are nearly a thousand cavalry, plus the one thousand cavalry brought by Li Kai, which should be enough for the time being. I will keep Sun Xuan in Jinan to continue training cavalry. If the number of cavalry is still insufficient when attacking Jinzhou next year, I may have to transfer some from you. Although southern Liaoning is close to the hinterland of the Tartars ruled, the Qing army is guarded by the Qing army along the north, and the area for transfer is too narrow. But the North Korean side is different. The road is long, the sky is vast, and the Qing army is lax in defense, and the eight thousand cavalry can be traversed everywhere. As long as the Qing army is disturbed there, they have to drive troops eastward, our army will have the opportunity to seize Jinzhou here. At present, Dorgon led the main force of the Tatars into the pass to compete for the world, which is the weakest time for the Qing army in Liaodong. If it cannot make a breakthrough this time, the future situation will be really unpredictable."

Li Dingguo nodded and said, "Don't worry, leave everything to me. I heard that the Lord of North Korea is a North Korean. If I go, will he listen to me or will I listen to him."

Zhou Xian nodded and said, "Yes, his name is Lin Qingye. He is one of the few famous generals in North Korea. He was also awarded the general of the Ming Dynasty by Emperor Chongzhen. I recommended him at that time. Let me understand more. North Korea is a vassal state of the Ming Dynasty. The current Ming Dynasty is in the south. Because of the foreign enemy of Manchu, Lin Qingye and the Korean royal family, all the ministers should still cooperate with us to attack Liaodong, but they may not be completely united with our army. The tribes you lead are completely independent and do not have to listen to his orders. Of course, he does not have to listen to you. Discuss with him more often when encountering problems, after all, it is still someone else's territory."

Lee Dingguo frowned slightly, "Why didn't you eat North Korea directly? I heard that many of the families of the soldiers in the Korean army are in Dengzhou. Compared with the cowardly King of Joseon, they are probably closer to you who will help you when they are in trouble! Find a reason for cooperating with the Han army in North Korea and coercing the Korean royal family to be loyal to you, it shouldn't be difficult! Besides, the Korean Crown Prince Lee Hyun-sen is also in Shandong. If there is any accident in King of Joseon Lee Deok-in, then isn't you still the decision?"

Zhou Xian looked at Li Dingguo in surprise, and Zhan Mei smiled and said, "Brother Ning Yu, it seems that you have really put in a lot of effort recently! Even such a small thing is so clear."

Li Dingguo said lightly: "Since you are going to North Korea, of course you need to know these things. These days, you asked Li Xuan's office to go to me every day and send someone to bring so much information about North Korea. Didn't you just want me to know this in advance? You haven't answered me yet! Why not do that?"
Chapter completed!