Slingshots are something that almost every modern little boy has played with when he was a child, and Arold's soul was also proficient in this rather destructive toy in his previous life, and because of his innate love for machinery, the slingshot he made when he was a child was the red-eyed of other friends, but here Arold did not expect that he would return to his old business and make slingshots for his family's soldiers, a weapon that did not exist in this era.

In the 21st century, it is very easy to make a slingshot, because rubber bands are easy to find, but in the Middle Ages, when he didn't even know what rubber was, Arold had a lot of brains, and could only use the primitive material of leather tendons, and the few leather that was originally left in his family's warehouse were used, and it was easy to get together twelve elderberry slingshots.

"What the hell is Arrod used for?" Sir Wendell asked curiously in the training ground where his youngest son's weapons were being tested.

At this time, there were several scarecrows planted about a hundred paces in them, the scarecrows were stuck in the mud crookedly, the scarecrows wore worn felt hats on their heads, and the straw on the scarecrow's chest was a little loose, because it was originally arranged for the peasant soldiers to practice stabbing, because they were often stuck with spears, so it was a little messy.

"Well, let me show you how." Arold was a little distracted, because he had just seen his family's peasants practicing with a spear, and the person who had been assigned the spear did not agree, and good weapons and equipment on the battlefield often meant a high chance of survival, so a group of farmers fought together for a few inferior spears, until Sir Wendell stopped the mess, which also made Arold feel that his family needed a lot of improvement.

The slingshot made by Arold has been fully calculated and designed, and some places are still based on the simulation of the type of military slingshot he has seen in the past, because of course, the material cannot be 100% the same, but the lethality is definitely enough to cause damage to light infantry.

"Whoosh~~~Smack." Arold put a stone into the semicircular leather bag of the slingshot, raised his left arm and aimed it at the head of the scarecrow in a Y-shape, and with his right hand, he pulled the slingshot and let go, and shot the stone out of the scarecrow in one go, but unfortunately the stone did not hit the head of the scarecrow, but hit the branches and leaves of a large tree over the wooden fence of the clearing, knocking down a few leaves.

"Well, I'll try again." Arrod's face turned red unconsciously, to be honest, as a technical otaku, his skills in making are far greater than the skills he uses, but today is indeed a big mess, and the maker of his own weapon has actually missed.

"It's okay, you try again." Although Arold had fired the stone by mistake, Sir Wendell's eyes lit up, this weapon that emitted stones by elastic force was so powerful that it knocked down the leaves outside the clearing two hundred paces away, and if it hit a person, even if it did not bleed, it would make the enemy suffer.

"Okay." Arold gritted his teeth and tried hard to adjust the position of the slingshot, and once again pulled the slingshot and shot out the stones, this time hitting the target, only to see the stones embedded in the face of the scarecrow, and the whole body of the scarecrow trembled a few times, as if he was hit and trembled because of pain, of course, the scarecrow filled with straw did not feel any pain, it was just a physical reaction caused by the inertia of the slingshot.

"Well done." Marcos applauded, and as a mercenary, he quickly saw the benefits of the slingshot, which was that it was easy to use and that the projectile was a stone everywhere.

Sir Wendell is also very satisfied with Arold's invention, this slingshot complements the long-range attack ability of his family soldiers, although there is no bow and arrow range, but when reporting to the duke, a force with long-range attack ability can still deepen the influence to some extent, Sir Wendell is always angry that his family is not allowed to enter the duke's court, this is also a matter of no way to his own territory is small, his relatives and his wife's relatives are mostly middle and low-level small nobles, without the support of powerful people, Of course, the weak family was not favored by big nobles like Duke Mason.

"I didn't expect the nobles of the Middle Ages to be quite receptive to new things." In his previous life, Arrod sometimes watched knightly movies in Europe and the United States, where the nobles were often described as a group of vested interests who refused to innovate, and the knights seemed to only believe that their carbine could pierce any enemy's defenses, and other weapon innovations did not appear in their minds, but Sir Wendell, as a nobleman, was able to follow his advice and equip his troops with slingshots that he had never seen before, which was something he did not expect.

In fact, Arold only knows one thing but does not know the other, as a vested interest of the big nobles of course hope to always control their own advantage, that is, the absolute advantage of the heavy cavalry on the battlefield, any other threat to the only advantage they have will cause unhappiness, but as low-level small nobles, small landlords, they have always been the most active class in feudal society, how to improve their family strength is their primary consideration.

Since Sir Wendell was as good as he could, Arryd's mind was also active, he thought that his family's soldiers were very small, so he could not stick to a single weapon such as a spear in terms of weapons, and when Arold saw the English mercenary Marcos, a weapon came to his mind, this weapon may be unfamiliar to many people, but the English were the first to use this simple and capable weapon to restrain cavalry, that is, the medieval hook and sickle.

"Hook and sickle?" Sir Wendell felt that his mind was obviously not sufficient to stay with his young son, and the endless emergence of new weapons made him feel a little unstable in his heart, so he asked suspiciously.

"That's right, in fact, it is to tie the scythe used by the peasants to the wooden stick, this thing is simple to use, the material comes from the farm tools that the farmers are used to, the key is that the production cost is almost zero, and the effect against the cavalry is good." Arold said excitedly to his cheap dad.

"Well, I think it's better to take it slowly." Sir Wendell looked away, he had fought all his life, and he had never heard of peasant soldiers using dung forks to fight against cavalry, let alone elite knights in armor and armed with long horse pistols, even when ordinary light cavalry broke into the peasant soldiers, they often caused a rout, and the only role of peasant soldiers was only to make up the number of people to do miscellaneous, after all, the battlefield belonged to the knights and nobles.

"I think ~~~." Arold tried to persuade his cheap father, but Sir Wendell waved his hand impatiently, so he had to stop.

"Hmph, the guy who hasn't grown his hair is even trying to deal with the knight." When Sir Wendell left, Yves gloated and mocked, which made Arryd's face look very ugly, and he realized that this was not his army, and even in advanced weapons and war theory, no one would believe him, the second son who had never been on the battlefield and had no status.

"Don't listen to me, a time-traveler with thousands of years of knowledge, don't blame me for the loss." Arold was angry and slandered in his heart, he ignored Yifu and the others angrily, left and walked to the creek to pick up stones and throw them around.

"Oops, who's throwing things around, doesn't they have long eyes?" The stones splashed in the middle of the clear river, and from the dense weeds by the river, stood a thin body, wearing a shabby linen skirt, the gray skirt seemed to have become white in many places because of the frequent washing, but it was very neat, from the two long sleeves stretched out slender arms were inserted into the waist, and then up was a flushed cheek, a pair of blue eyes stared at Arrod viciously, the small mouth was very funny, and a golden hair was scattered behind the head.

"Huh, someone?" Arold didn't expect that he would throw stones in anger, and he would splash the river water on others, and hurriedly wanted to apologize, but the other party suddenly laughed when he looked at his face.

"It turned out to be Master Arrode, aren't you helping Lord Sir in the training ground? How did you come here? The little girl asked curiously.

"You, do you know me?" Arold asked in wonder, he was not very familiar with the people in this village, and it was obvious that the other party knew him well.

"Ah, I'm Layla, Chodo's daughter, have you forgotten Young Master Arrod? I brought you honey in May of this year, and Leila is a beekeeper. Leila hurriedly stepped out of the grass by the creek and said to Arold with a smile.

"Oh, it's Leila, ha, of course I remember." Arrod knew that he hadn't crossed in May, so he didn't know Laila, but he didn't dare to say that he didn't remember, so he hurriedly said with a smile.

"Hey, young master, you're very strange." Layla tilted her head to look at Arrod, her eyes full of doubt.

"Ah, you, what are you doing here?" Arold felt that he was about to be seen through by this strange girl, so he quickly changed the subject and asked.

"Leila is looking for bees, Leila doesn't have any friends, only bees are my good friends, but now there are fewer and fewer bees, because the weather is slowly getting colder." At this point, Leila became active, and she was glad that someone could talk to her about bees, and her eyes brightened.

"What are you looking for honey for?" Arold asked curiously, he remembered that his family's honey should be stored enough, and he should not need to use it.

"Oh, can I tell?" Leila looked at Arrod cautiously, with a somewhat timid expression, lowered her head, and put her hands behind her back, looking pitiful.

"Tell me, what's going on?" Arold asked curiously.

"Because, my father Jodo has been coughing very badly lately, and I want to find some honey to help him, you won't tell Lord Sir." Lyra whispered, sneaking a glance at Arrod's face from time to time, like a frightened fawn.

"Well, honey is very helpful for coughing, it's so smart that you actually know it, oh yes, you said Jodo, it won't be a coward Jodo." Arold complimented Leila.

"My father wasn't a coward, he, he was a very good fighter." Laila said excitedly with a red little face, Arrod didn't expect that the girl who was like a fawn just now suddenly became emotional, and suddenly became at a loss.