If Sugar Candy paints by herself, no matter how fast she is, she can only draw 3 to 4 pieces a day, which is not only limited by her hand speed, but also takes into account the speed of the formation of the clay ball embryo, the speed of the cloth after being soaked in water, the speed of the wood chips absorbing elements, etc. But if you do all these things manually on a large scale, even if one person can do two in a day, and 100 people can do it, you can make 200 in a day. However, it is difficult for ordinary people to have the talent of golden arrows like Sugar Candy, and it is difficult to depict them accurately, especially the circles and straight lines that make up the most spells. Like Lu Jingzhi, I also tried to draw together, but often the stroke was crooked, and in order to correct the drawing, the lines may have to be thickened several times. In this way, the area of the spell will be several times larger, and it will have to be modified many times. Let Lu Jingzhi draw a spell deed by himself without the help of tools, and it will be difficult to draw one in a lifetime.

If you have a compass and a straightedge, it's completely different. First of all, the circles and straight lines that are used most often in the spell can already be drawn very standardly. Secondly, it is easy to divide multiple line segments with a compass, and to quickly measure angles and radians. With these things, Lu Jingzhi can also trace the corresponding graphics according to the cat's drawing. What's more, as long as he can draw it, he can basically draw it by someone else.

The T-ruler and slide rule are more high-end tools, one is used to draw huge figures, which can be used to make more complex spells, and the other is used for quick calculations, in the era when there were no computers, the slide rule could increase the speed of human calculations by dozens of times, and in some respects it was even better than the abacus. Lu Jingzhi once again relied on the accurate technique of sugar candy, using wood as raw material, to make more than 20 sets of compasses and rulers, and made two T-shaped rulers and two slide rules. After Tangtang made a slide rule, he once asked Brother Jing to show her how to use the slide rule. After discovering that almost every math problem she could think of could be answered on the slide rule, she asked, "How did you come up with something so useful?"

Lu Jingzhi "modestly" pointed to his head and replied, "Use it." ”

The effect of the tool was soon revealed, even a clumsy person like Lu Jingzhi could quickly draw a water element collection spell with the help of the tool, and even he used the calculation of the slide rule to draw the line segments on the converging circle more reasonably, so that the water element concentration was higher and faster.

"Isn't it just reasonable optimization? Lu Jingzhi said smugly, "Your brother Jing is born to use his brain, and compared with those who do it, he has an advantage." ”

Tangtang wasn't angry, she just looked at him with a smile and was happy from the bottom of her heart. In her opinion, Brother Jing's cleverness is her own wealth, and no one can take it away.

Since Lu Jingzhi started to draw spells, their grenade production has doubled, and because they are familiar with their hands, they can also think about other things besides production, such as how to increase the number of people.

"Where's the human captives, you say?" asked Lu Jingyi, casually wrapping a soaked coarse cloth around the finished cylindrical clay tube. In order to simplify the wrapping process, Lu Jingzhi creatively changed the spherical shape to a cylinder shape, engraved the spell deed in the cylinder, and then sealed it from both ends.

Tangtang snorted for a moment and said, "I think I may be locked up, and when I return to the castle of the principality, I may be dragged to the soul refining pool." ”

Lu Jingzhi sighed and said, "That's a pity." So many people, so strong, even if they are put in the village to give birth, they are much more alive than those half-dead peasants. ”

Sugar Candy smiled and said, "You use them as breeding pigs." "Lu Jingzhi has pig-raising villages in the mining area allocated by the Duke of Windsor, and those villages will raise breeding pigs to breed sows, and just now Lu Jingzhi said that those prisoners of war should give birth to children, obviously asking them to be "breeding pigs" for the women in the village.

Lu Jingzhi wrapped the grenade, put it aside casually, and said, "You say, if we steal those captives and make grenades for us, how about it?"

Tangtang was startled, the short sword in his hand was crooked, and he almost pierced his hand, and said, "You dare to steal people?" She didn't know that this word had another ambiguity in the world, but she felt that Brother Jing's idea was too bold and reckless.

Lu Jingzhi smiled: "I don't steal people, I just said that, you see it scares you." ”

Sugar Candy then put her mind at ease, and while continuing to carefully carve the wood chips, she thought about it for a while, and said, "If only I could get them here." Otherwise, I'll go to Sister Tilly and ask for it and see if I can use it for us. ”

Lu Jingzhi said: "How can there be such a good thing, someone else's captive is easily given to you? You are not the mother of those undead." ”

Sugar Candy chuckled and snorted, "You just don't look serious." ”

Lu Jingzhi picked up another carved clay cylinder, carefully put away the parchment strip for the barrier - now it has been optimized to the barrier with only one piece of parchment, as long as it is placed on a key outer tangent line, it can prevent the detonation - and then began to wrap it in a soaked coarse cloth, and said to Tangtang: "I think we can exchange things for it, maybe we can exchange it." ”

Sugar Candy asked, "In exchange for what, what undead do you want you to have?"

Lu Jingyi raised the thing in his hand and said, "That's it, let's exchange it with a grenade." This thing is easy to use in war, and they don't know how to do it, so I'll take this to replace people, one for another. ”

Sugar Candy didn't speak, she already knew that this thing was very valuable to the undead, but she also knew that the undead army of the principality was Lu Jingzhi's mortal enemy, after all, there was a stupid and stupid second enemy there, and it was impossible to say that he had forgotten, but now he was not able to resist yet, so he just forbears it for the time being. If Lu Jingzhi has any feelings for the entire Principality, it is nothing more than his personal gratitude to the Grand Commander Tilly.

Although Tangtang didn't speak, Lu Jingzhi also knew what she meant, and persuaded her: "For the sake of those living human beings, let's be humble and wronged." Tangtang nodded, she also has a deep affection for Silly Da Silly Er, but since Brother Jing said so, it is not impossible for her to let go for the time being.

In the days when she was making grenades, Tilly barely saw Lu Jingzhi and Tangtang come to her, and the two of them made spells without sleep or food, which made her feel a little ashamed. After leaving the teacher, she had never worked as hard as the two of them. But they didn't come to her, and she just had time to deal with some military affairs. The dysfunctional nature of the mechanical and electronic equipment in the undead world made it difficult for the soldiers outside to enter on a large scale to search for the missing soldiers, but sooner or later they would find that they could easily penetrate with human or animal power, so during this time, she was also worried about how to deal with this matter. By the time Lu Jingzhi and Tangtang came over to ask her for those captives, she was almost about to give them away.

However, these captives were not captured by her, but by the knights of the principality. These knights were nominally under her authority, but they were not obligated to let her take what she wanted.

"Go and call Hash. Tilly said to the maid beside her. The maid took the order, and after a while, a tall undead knight followed the maid in. Lu Jingzhi recognized him, it was he who took those human soldiers in front of him at that time.

Hash bowed to Tilly and said, "Your Excellency, Honorable Commander, what are your orders for calling me here?"

Tilly frowned, this action only made her pretty face a little more angry, but it didn't make her face ugly at all, she pointed to Lu Jingzhi who was standing on the side, and said, "Those human captives you captured, can you lend them them?"

Hash turned his head to look at Lu Jingzhi and asked dissatisfiedly: "But Your Excellency, he is from the Empire, why don't we arrest him too, and give him the prisoners to use?"

Tilly gave him a blank look and said, "This is a matter between me and him, although he is our prisoner of war, there is no doubt that he is a high-ranking knight, and he is entitled to such treatment." ”

Hash nodded, "Your Excellency, you are right. I also have full respect for high-ranking knights, but the humans I captured cannot be given to others for no reason, even if it is a high-ranking knight, they can't take my loot from me. ”

Lu Jingzhi said: "Mr. Knight, I don't mean to offend you, and I don't want to take advantage of you, I hope I have something of enough value to exchange with you." ”

Hash sneered, "Your Excellency High Knight, I don't believe you left anything of value on you when you were captured. "Capture, whether it is an ordinary knight or a high-ranking knight, or even a king, will temporarily take away what is valuable from them, and call it "custody" until the captives are redeemed for a fairly high value. But the result of this escrow is often accidentally lost, and no one will be overly accountable - who knows if you lost it on the battlefield?

Lu Jingzhi also laughed, he took out a cylindrical cloth bag from his arms, which looked more like a scroll, and said to Hashi: "Mr. Knight, do you know what my title is?" Seeing Hashi shake his head, he told him: "I am the magician of the Imperial Army." ”

Hash nodded, the principality also has a magic envoy, everyone who can get this title is regarded as an elite, and it is a more outstanding existence among the high-level knights, if the little guy in front of him is really a magician, then it can explain why he can get the rank of a high-level knight with such a thin and weak figure. "What do you want to show me?" Hash had a little respect for Lu Jingzhi's tone, no longer that kind of ceremonial respect, but a real respect from the heart.

Lu Jingzhi pointed to the cloth bag in his hand and said: "This is a high-level magic, I sealed it in this cloth bag, as long as it hits, it can achieve a one-hit killing effect on any opponent who has not reached the high-level knight." "It's true, high-level knights have a fighting spirit to protect their bodies, and the simplified version of the cloth-wrapped grenade has limited power, so it may not be able to explode into anything, but those knights who are just powerful knights or even lower-level soldiers or servants can only use their flesh and armor to carry it. In the undead world, Lu Jingzhi had never seen armor and undead bodies that could withstand the frontal impact of grenades.

"You mean...... Trade it for slaves?" the knight's eyes were straight - of course, his eyes were always straight, after all, he was an undead, and he couldn't fly more agile eyes.

Lu Jingzhi reciprocated with an affirmative smile.

Does the hash agree to change? How will Lu Jingzhi change? I want to know what will happen next, and see the next breakdown.