Onihei blinked blankly, and then hurriedly said, "There is a small town fifty miles from here, and I came from that direction, and there is a small blacksmith shop there!" ”

He no longer concealed his anxiety and excitement, as if a child who knew that he could go to the mall to pick out toys looked restless.

Then the three of them traveled fifty miles to the town.

It's really small, and from the entrance of the town, the end of a main street is the end of the town. This main street has a variety of upper bunks, all of which are convenient for nearby farmers to come and trade. In the center was a bunch of inns and a small blacksmith's shop.

There are a lot of iron tools placed at the door of the blacksmith shop, generally horseshoe cowring kitchen knives and the like, that is, there are few metal hoes, but the most are firewood knives, which does echo the fact that there are many surrounding mountains and forests. The whole is a large open house repaired with mud, and you can see the inside from the street, with a half-open stove on the left in the middle, and an iron pillow on the right, an old blacksmith and a young man sitting on the side resting, with trousers underneath, but the upper body is bare, and it looks strong, and it is covered with an apron that I don't know what kind of animal skin is made up to the chest and abdomen. Next to the two of them was a sledgehammer and a small hammer and tongs.

These three tools are the basic tools of the blacksmith's shop, and nothing else is needed.

The conditions here can be described as extremely poor, but what makes Tiansin's eyes light up is that there is a strange 'grinding disc' near the door, the stone on it is very dense, and there is a wooden handle on it that can be pushed back and forth through the guò to make the 'stone mill' turn, and on one side of the stone mill there is a gray stone that has been half worn off. It was this stone that amazed the sin!

This grinding disc is undoubtedly a symbol of the wisdom of the people, a tool that can be sharpened quickly, and the rapid rotation of the grinding disc through the guò grinding disc to polish the iron into a sharpening shape, there is nothing to say, but the gray stone......

Heavenly Sin stepped forward and picked up the stone, and with a light clasp of his hand, he 'pinched' a piece from it, and when he rubbed it with his fingers, it turned directly into powder, and the powder would reflect a sporadic luster in the sun.

'Isn't this something like sanding paste?!' Lao Tzu really underestimated the wisdom of the world! ’

He didn't have to think about it to know the operation of this grinding disc, while rotating the gray stone into powder, the powder stained on the grinding disc and then polishing the metal tools, and they should know from experience that the more glorious the metal tools, the less likely they are to rust, the sharper the knives, and the smoother the horseshoe.

When the old man in the blacksmith saw someone coming, he hurriedly stood up and stepped forward and said, "What does the guest officer want to buy?" We don't have a lot of stuff, but we still have a lot of stuff. ”

Guiping stepped forward directly and said coldly: "You two go out!" I'm going to use your store now! ”

The blacksmith shop owner and the young man were both startled, already angry, but still cautiously asked, "Excuse me...... Do you want to tell me why? ”

Ghost Ping sneered, and suddenly his palm shook, and a red light flashed in his palm, and then asked, "Is this reason enough?!" ”

The shopkeeper was shocked, stumbling and saying that enough was enough while leading the young man to run out, but he was reluctant to run far, squatting on the opposite side of the street at a steamed bun shop and looking at it carefully.

Onihei then said to Heavenly Sin, "Is it okay here?" ”

Tiansin looked at him from the corner of his eye and said, "Naturally, you can do it at any time, but I don't know if you can do it." ”

Guiping wondered again: "Why is this?" ”

"I can't do such a big project alone, and I still need you to do it, and ...... It needs a lot of wind, and it depends on whether the strength in your arms can provide it. ”

"Arms?" Onihei tilted his head and glanced at the bellows next to him, and the corners of his mouth twitched. Although he doesn't seem to be a powerful character standing in front of Heavenly Sin now, but in the Heavenly Sword Sect, in addition to the sect master, he has a high status, although he is young, but no matter where he goes, in any sphere of influence, there will always be someone who will give him a little face, and because his position is relatively unique, he is doing work such as assassinating foreign enemies and cleaning up portals, and his murderous reputation has long been spread, otherwise Xiao Lu would not be very nervous when he saw him, and he looked like he was going to die.

He is powerful, and the talent of the red-level thirteen stars is placed there, but this is not the key, his most powerful place is his city government and stratagem, as well as the exercises that are specially used for assassination!

It is rumored in the mainland that Ghost Ping once killed a gold-level master! But no one can say who this gold-level master is, and how he killed it, and it is impossible to confirm whether there is such a thing, but very few people doubt it. The fame is so strong that children can stop crying at midnight. If someone on the road accidentally looks at him with strange eyes, they may suddenly kill the killer, and no one will notice that he killed him.

Murderous, cunning, high-minded, low-key, he has all the standards that echo the killer's requirements, but at this time, he suddenly shows his cultivation to scare ordinary people, which is fundamentally different from the previous low-key principles, obviously...... He has been corrupted by the sin of heaven, and now he is a little 'messy'.

Without saying a word, Onihei walked to the bellows and grabbed the handle directly with both hands, ready to start work at any time.

Satisfied, Heavenly Sin smiled lightly, took the two pieces of metal that the ghost regarded as treasures from his arms, threw them directly on the ground like rags, and then squirmed his small body and began to add a black 'mud block' to the stove.

This mud is fuel, at first glance, the sin of heaven thought that he had hit the luck and met the coal, picked it up and looked at it carefully to know that he was not hitting the luck, but winning the lottery, this is actually 'Jiaoyan'!

Coke rock is also a kind of coal, but a large amount of coal is burned at the same time, most of which is not burned completely, and will 'flow' out of a black thick liquid like something 'floating' on the surface of coal, this is coke, also called coal coke, is the highest calorific thing in coal, can be described as the essence of coal.

Coal and coke are burned to produce a large amount of gas, but this kind of coke gas is different from ordinary gas, it has a very magical place, that is, 'wind change'!

With the order of Heavenly Sin, Onihei began to pull the bellows frantically, and the violent wind blew up from the wind tunnel below, directly through the coal coke and then flew out of the hole above.

Heavenly Sin waited quietly, waiting for the originally black things to burn into a red patch.

And the magic place also appeared at this time, the combustion temperature of the gas is actually only more than 300 degrees close to 400 degrees, and the combustion temperature of coal is up to 1,200 degrees, only through the blast furnace and other equipment that can increase the temperature of the furnace can make its temperature reach 2,000 degrees, but ...... The instantaneous combustion of coal gas is incomplete, and coal coke is even more so, when the wind blows quickly and makes them fully burn, they can raise the temperature to more than 3,000 degrees!

It's like ...... Spray gun! In the absence of a furnace, the steel bar can be burned through the steel plate, not to mention that there is an environment where the temperature can be raised as a whole?

When the fire was scarlet, Heavenly Sin picked up the tongs and threw the two pieces of metal into the furnace at the same time, and then used the tongs to gather the reddish coal in other locations, so that they were completely covered on top of the two pieces of metal. Subsequently...... It's prayer.

These two pieces of metal are good things at a glance, but the heavenly sin really doesn't know it, what is their melting point? And how much temperature does it take to deform? And what steps do you need to make them 'steel'? Brittle stool is sharp, solid and tough, how to quench to make the edge sharp, if the beating can ensure that all the metal is not smashed into sparks and can ensure that the metal reaches a certain density and purity?

Everything is unknown, but Heavenly Sin happens to like this process of groping and exploring.

Waiting quietly, the bellows sounded, and the flames were blown into a line by the wind, and flew straight towards the roof, the hole was too small, and in a few clicks, the earthen shed was also burned red, shattered, and disintegrated. With a wave of his hand, a golden light flashed, and the entire roof was directly overturned by him, falling on the street to block the crowd and scare away many onlookers.

While Kihei was working, he was secretly full of strength, ready to kill him and the beautiful woman in an instant as long as he confirmed that Heavenly Sin was lying to him! Because for some reason, he was afraid of this woman who had been silent and vigilant, like some kind of animal-like instinct, powerless to the behemoth. So he decided that he had to kill her, no matter what the outcome would be.

Heavenly Sin slowly closed his eyes and hugged his arms, as if he was asleep standing up, only his index finger was tapping his arm one by one, as if there was some kind of rhythm.

Everyone present, whether it was the ghost or the crowd watching from afar, or the passive alarm, an old man who walked over from a restaurant in the distance, no one could understand what Heavenly Sin was doing, and what that melody was.

Only Xiao Lu, frowning slightly, tilted her head slightly and listened carefully to the beat of the sin that day, and then turned her head sharply to look at the cupola flames in the furnace, the melody ...... It turned out to be the rhythm of fire!

At least half an hour has passed, even if he is such a master as Oniping, he can't help but sweat on his forehead in such a long time of uninterrupted labor, if he is someone else, he must be impatient or even angry at this time, but he is different, silent like a fox crawling behind the grass.

Suddenly, Heavenly Sin opened his eyes, grabbed the fire tongs, and slammed in and out, and clamped out a piece of metal buried deep in the red coal coke, but saw that the original pure silver bright small piece of metal had been burned translucent at this time, emitting an incandescent light, and Heavenly Sin looked at it, and suddenly the concept of 'glowing ice cream' appeared in his mind, which was very similar, making people want to go up and take a bite. Although it is bright, it is bright and cute, and the edges and corners give people a sense of 'roundness and smoothness'.

The heavens know that this is the beauty of the destruction of the metal at the threshold between the molten and the unmelted when the temperature is extremely high.

'That's it! ’

He couldn't help but shout excitedly in his heart.