"Blackbeard, more than 30 henchmen, gathered more than 500 people, burned and looted everywhere."

Among these words, the one that gave Rosen the most headache was the first one.

Blackbeard, a former officer of the Parason Empire, is the leader of the rout, this is his identity on the surface, but in secret, he has an even more terrifying identity, that is, he is actually a high-ranking werewolf.

Werewolf, half-human, half-wolf, nearly 3 meters tall, strong muscles, hard bones, can easily weigh more than 400 kilograms, powerful as an elephant, and has a terrifying vitality.

An ordinary werewolf, swinging a claw at will, can shoot a four or five hundred kilogram domestic buffalo out of five or six meters, the claw can easily smash the ordinary sword, its skin is extremely tough, the ordinary sword can only cut a shallow blood hole at most, and it will not take ten minutes to completely heal.

The high-level werewolf is even more terrifying, its strength and size are one size larger than ordinary werewolves, and it can freely transform between human form and wolf form, it is okay in human form, except for greater strength, it looks little different from ordinary people, but in werewolf form, he is a flesh and blood siege tank!

In the game, since Blackbeard appeared, the town of Sunderland and the surrounding area have been bad, at the beginning, Blackbeard led his bandits to sweep the villages around Sunderland Town, and after the village was almost destroyed, he also gathered more than 1,000 people, and then, he led the more than 1,000 outlaws to attack Sunderland Town, and after a few days of the battle, Blackbeard showed his werewolf form, broke through Sunderland Town, killed the lord Baron Draco, and replaced him as the Black Lord of Sunderland Town, and began his reign of terror.

In the game, Rosen, as a master hunter, once infiltrated the fallen town of Sunderland and killed Blackbeard. Fortunately, Rosen succeeded the first time, and his main weapon at that time was the Spiral Troll.

"Hey~ I've been so busy lately, I forgot that there was this trip, which is also strange that Sunderland is a small place with a big fart, which is really inconspicuous. ’

'Looks like my weapon-building plans are getting faster. ’

With his mind in a jumbled mind, Lawson turned and walked towards the Savi Glass Shop.

In troubled times, everyone only wants to live, luxury goods are the least valuable, and now the rout outside Sunderland is raging, and every family is trying their best to store food, where is there anyone who has the heart to fiddle with glass?

When Lawson arrived at the glass shop, there was no one in the store except Savi.

Fat Savi sat behind the counter with a sad face, his big white and chubby face almost wrinkled into a bun.

"Savi, what are you doing?" Rosen asked.

"I couldn't afford it, so I quit." Savi was listless.

Seeing him like this, Rosen shook the parchment roll in his hand: "I brought a new process, do you still want to learn?" Let's say okay first, if you don't learn, that's if you breach the contract first, I won't return the money. ”

Savi smiled wryly: "I want to learn, but now in this year, who has the spare money to buy glass?" ”

"War will pass."

"Who knows if I'll be able to make it to that point, Blackbeard is menacing, and I don't think even Sunderland Town is safe."

Rosen put the parchment roll on the counter and persuaded, "I tell you, the polishing process is not the same as ordinary glass jewelry. ”

Savi held his fat chin with both hands, and looked at Rosen weakly: "What's the difference?" Isn't it all luxury? Who buys this thing in ordinary people these days? ”

Lawson said: "You think, glass jewelry is nothing more than a good look, it doesn't matter if you have it or not, right?" ”

"Hmm~~~" Savi nodded sadly.

"But the magic mirror is different. The magic mirror, in addition to looking at women, can also be used by scouts and sentinels to detect the enemy. With the magic mirror, if the enemy wants to sneak attack, we can see it from afar, isn't this an opportunity? ”

"Huh?" Savi perked up and sat up straight: "Master, what you said makes sense." ”

The fat man's head began to spin, and after a few turns, his back drooped again: "No, no, even if I can really make a magic mirror, but this thing must be very costly, which lord is willing to give this thing to a stupid soldier?" ”

Lawson reached out and knocked on the counter and scolded: "You are stupid, the cost is high, you won't think of a way to reduce the cost?" ”

Savi looked confused: "What kind of descent?" ”

Rosen rolled the sheepskin in Savi's direction and pushed: "Take it and take a closer look, and you'll know." ”

Savi unfolded the parchment roll in disbelief, and when he looked at the first one, he saw that the title on it had four words: 'Geometric Optics.' ’

His heart moved slightly, and then he looked down, and saw the sentence 'Light can be abstracted into countless straight lines', and next to this sentence, there is an intuitive picture.

Seeing this, Savi's heart shook suddenly, and he reached out and patted his head: "Yes, why didn't I think of it?" ”

He was immediately intrigued, and he threw all his energy into it, and after looking at a few more lines, he saw another sentence: 'Why do chopsticks in the water look like they are broken from the side?' Why should you shoot a fish with an arrow, not directly at the shadow of the fish, but under the shadow of the fish? The reason for this is because of the refraction of light. ’

Savi's life experience is quite rich, as soon as he saw these two sentences, and then saw the picture next to him, he understood at once, and couldn't help but pat his thigh and shouted: "Exquisite!" ”

To this extent, he has been introduced by Rosen into the temple of optics.

Lawson was not idle, closed the door of the glass shop, and led the lost Savi towards the backyard studio.

When he arrived at the studio, Rosen said to Savi, "Keep looking, I'll borrow your stove." ”

Savi didn't raise his head, and his eyes kept glued to the parchment roll: "Master, you can use it." ”

Rosen didn't rush to raise the fire, he said to Savi, "Do you have oil here?" ”

"What oil?"

"Any oil." Rosen returned, he took the oil for quenching.

"I have olive oil in my kitchen, I'm going to get it." Savi's eyes were still on the parchment, and as soon as he turned around, his head clattered against the door frame.

When Lawson saw his obsessive appearance, he no longer bothered: "You look at it carefully, I'll do it myself." ”

"Hmm~Okay, okay, tsk, wonderful~" Savi's soul had fallen on the parchment.

Rosen didn't bother him anymore, he went to the kitchen to look, took back a small half barrel of olive oil, looked at it, and found that there were many impurities in the olive oil, so he activated the power of alchemy to quickly precipitate the impurities in it to the bottom of the oil barrel.

When it was done, he put on cowhide gloves, picked up a wooden shovel and added charcoal to the stove, lit the fire, pulled the bellows, and quickly raised the fire.

After the charcoal was burning, Lawson took the iron tongs and put the iron pipe he had intercepted yesterday and burned it on the charcoal fire.

This iron pipe was cast, the worst quality gray cast iron, and what Rosen had to do was to machine this thing into a suitable barrel.

Processing metal, this is his old business, when he graduated from college and practiced, he went to a steel processing factory, after being admitted to graduate school, he was most interested in metal materials, after studying, he checked information, did experiments, and spent almost all of his free time on this.

'On Earth, military gun barrels are made of high-strength chromium-molybdenum alloy steel. But chromium and molybdenum are rare metals, and I can't get them now, and the barrel of my spiral troll does not need rifling, and the requirements for the strength of the barrel are not high, as long as the process is proper, ordinary high-strength steel is enough to do the job. ’

'I want a barrel now, and the barrel needs to be resistant to high temperatures, hard, and at the same time have a certain level of toughness. If it's too brittle, a continuous shot can cause cracks in the metal and explode. To achieve this kind of performance, I had to lay out the metal structure properly. ’

While the iron pipe was still heating, Lawson took out his parchment and quill and began to calculate.

For a while, the fat white man Savi was obsessed with geometric optics and mirror grinding, while Lawson focused on designing the steel he wanted, neither of them spoke, and the studio was quiet.

After a few minutes, Rosen came to the result, and he looked up at the iron pipe, which was already red from the charcoal fire.

"It's time to go."

Rosen thought about the specific process again in his heart, and then activated the alchemy power, slightly concentrating oxygen towards the bellows vent, and at the same time, he slowly pulled the bellows.

'Whew~Whew~'

The charcoal in the furnace gets more oxygen supply, the temperature begins to rise slowly, and after a while, the melting point of iron is reached, and the iron pipe begins to soften and deform, and it looks like it is about to melt into molten iron.

Now is it. ’

Lawson kept the furnace temperature constant, the alchemical power wrapped up, and the tentacles of his mind tried their best to sense the structure inside the metal tube.

He removes the cavities inside the metal, precipitates excess carbon, and rearranges the iron atoms.

It is worth mentioning that when doing this series of actions, Rosen did not forcibly confront the metal bonds in the iron, he borrowed the thermal motion of the atoms at high temperatures, and took advantage of the situation to achieve the results he wanted little by little.

There are pros and cons to this method, the pros are less effort, and the disadvantage is that the efficiency is extremely low.

I don't know how long it took, but at this time Savi was still immersed in the new field of optics, while Lawson exhaled lightly, slowly lowered the temperature of the furnace, and when the iron pipe fell below the melting point, he used the iron tongs to clamp out the iron pipe and began the final heat treatment.

Metal heat treatment, nothing more than annealing, normalizing, tempering and quenching, what is the final performance of the metal, the quality of heat treatment has a great impact. The final performance of the same material is very different because of different heat treatments.

Rosen is not a professional worker after all, although there is a theory, but the practical method is very rusty, but it doesn't matter, he has alchemy power, can always perceive the internal structure of metal, and can adjust it at any time if the situation is not right.

After about an hour of trial and error, a hollow iron pipe with a diameter of about 2 centimeters and a diameter of about 2 centimeters appeared.

This iron pipe is dark and swarthy, the surface is smooth, the touch is cold, the inner hole is very round, the lines are indescribably precise, and the sound is dull and crisp when you flick it lightly with your fingers. Just by this appearance, it is enough to make people feel that it is extraordinary.

Rosen rejoiced: 'The most critical part, one is the barrel, the other is the bullet, and now that the barrel is available, the other parts can be easily completed. As for firing bullets, this one is not that difficult. Spiral big trolls, it's 70% complete. ”

He was also tired, and after carefully putting away the barrel of the gun, he sat down by the fire to rest and recuperate, and after sitting for a while, feeling that his energy had recovered a little, Rosen took out the parchment again and began to record the whole process of his operation.

This step is not necessary, but Rosen has developed a habit on Earth, as long as it is a successful experiment, without writing it down, he always feels that something is missing, and the whole person is uncomfortable.

After writing for a while, the fat white man Savi, who had been immersed in hard reading, suddenly trotted a few steps forward, and then knelt down in front of Rosen with a 'poof' and shouted, "Master! Guru! Please accept me as a disciple. ”