The old man walked through this room, and without stopping, I followed him to another room, in which there was a huge furnace, about three meters high and more than two meters in diameter, and around the furnace were piled up ores of different colors, and at the bottom of the furnace there was a groove that came out, and under the groove was placed a sword-like mold, which looked like ceramic.

In one corner of the room, there are many such molds, and next to the molds there is a stone table, and there are many bamboo slips on the stone table. Next to the stone table, there are several wine jars, all of which are sealed with mud, and it seems that this old man usually likes to drink some wine.

"You just came, and you are not familiar with the forging technique of weapons, so help me work here first, and then look at the bamboo slips when you have time, and when you are familiar with it, you can go outside and forge weapons by yourself." The old man pointed to the bamboo slips on the side and said.

"Okay, what do I need to do?"

"See these ores? You need to put them in the furnace above in the amount I prescribed. The old man pointed to the gravel on the ground and said.

"It's as simple as that?" I asked, a little incredulous.

"Simple? Hehe, lad, you do it first. The old man said with a smile.

Then I followed the old man's request, with a basket of ore on the ground basket on the back, after a while, I was tired and panting, fortunately, the jade pendant on the chest from time to time came a trace of coolness, I did not sweat much, but the old man was amazed.

"I'm a little curious, why aren't you hot at all in such a hot room?" The old man asked.

I saw that the old man was very friendly from the moment he came in, so he didn't hide it, took out the ancient jade from his clothes, and said, "An ancient jade from my family, it can produce cool air." ”

"Can you show me?" The old man asked with a hint of surprise in his eyes.

I took off the jade pendant and handed it to the old man, and at the same time I instantly felt a wave of heat rushing over my face, and beads of sweat the size of beans on my head poured down, as if I had entered a sauna at once.

"Shhhh Where did your ancestors get these treasures? The old man gasped and asked.

"I only know that this is a relic left by my grandfather, I don't know where he got it, why, my uncle knows the origin of this thing?" I asked, a little surprised.

"I don't know where he came from, but I can feel that there is a huge amount of energy in it." The old man shook his head and said.

"Really? How can I not feel it? ”

"Because the fluctuations that come out of this are very similar to the spirit of the sword I forged." After the old man finished speaking, he returned the jade pendant to me.

"Machine spirits? It's the first time I've heard of it, what is this thing? I asked curiously.

"It is to collect the spirit of the ancient divine beast, and then inject it into the sword, so that the sword will not only recognize the master, but also be very sharp!" The old man talked eloquently.

"Uncle, you are really a master in the world, I don't know if I can see it." I asked, a little surprised.

"It's really time for you to come, I'm forging a peerless divine weapon, but I need someone to help me, I'm worried about this." The old man said in surprise.

"Aren't there so many people out there? Wouldn't it be okay to just pull one over and help? ”

"Hehe, if you can pull someone over at will, I need someone to keep adding ore to it, the furnace temperature will continue to rise, and this person has to adjust the amount of various ores according to my command, if it is an ordinary person, it will not be able to complete these operations at all, it will be stunned by the furnace fire, and when I put in the spirit, the furnace temperature will rise sharply, and the person who throws the ore will either die or be injured."

"These are all imprisoned people outside, and you still care about their lives or deaths?"

"It's okay for them to die, but if someone dies when the sword is forged, it will affect the spirituality of the sword!"

"I see." I nodded knowingly.

"So, if you can come, God will help me, without further ado, let's start work now." The old man said excitedly.

Then, I stood on the blast furnace, according to the old man's request from time to time to add ore to it, the temperature in the furnace is getting higher and higher, and from time to time there are fireworks coming out, the ore is constantly melting, and finally, the old man pointed to the small pile of black ore and shouted: "Quick! Fill it all in~! ”

I hurriedly picked up the ore and threw it all into the furnace, at this time, I could see with the naked eye that there was a layer of green light around me, like a protective cover, no wonder the furnace temperature was so high, I didn't feel it at all, the old man was already hot and sweaty.

I stared at the ore in the furnace, and the pile of jet-black ore I had thrown into it for a while, but I still didn't see it melting, and I couldn't help shouting at the bottom: "Uncle! This ore doesn't melt! ”

The old man's brows furrowed, and he looked like he was thinking hard, but I didn't bother him, but still stared at the ore in the furnace.

After another period of time, the ore in the furnace still did not change, but the color of the furnace fire has changed from yellow to cyan.

"The fire has turned cyan, what should I do?"

"Hey! If the temperature can't be reached, the dark iron ore can't melt! The old man said anxiously.

"Can't get the temperature?" I frowned and thought for a moment, then suddenly said, "I have a solution, I don't know if it's feasible?" ”

"Tell me about it."

"Do you have water here? Get a bucket of water and pour it inside. ”

"You're not kidding me, are you? Water can extinguish fires, don't you understand? The old man gave me a blank look and said.

"How do you know if you don't try, you get a bucket of water for me first!" I yelled at the old man.

"You wait!" The old man hesitated, but turned around and walked out, and after a while, the old man came back with a large bucket of water.

I got down from the blast furnace, ran up with water, there was a scoop in the bucket, I picked it up and got a scoop of water and poured it in, the whole furnace instantly burst out of flames, the temperature rose sharply, at this time, the ore inside finally slowly melted.

"Melt, melt!" I shouted with joy.

"Really?" The old man looked incredulous.

In fact, he didn't know that when water encounters high temperature, it will react with carbon to produce carbon monoxide and hydrogen, and these two gases will burn rapidly after encountering an open flame, producing a sharp high temperature in a short time, which is common chemical knowledge in our modern times, but in ancient times, they did not know.

I put in all the rest of the water, scoop by scoop, and in a few moments all the ore was melted.

"It's all melted, come and see!" I shouted down there.

The old man hurriedly ran up, then looked at the molten iron in the furnace excitedly, and slapped me hard, "It's done!" Yours is it! ”

Seeing that the molten iron in the furnace gradually turned from yellow to blue-black, the old man took out a porcelain bottle from his arms and threw it in, the porcelain bottle was melted away instantly, and a ray of white light flew out of the porcelain bottle, but it was instantly rolled into the molten iron, the old man hurriedly ran down, and then pulled the valve under the blast furnace violently, and a stream of molten iron flowed into the sword mold along the groove, and the old man quickly brought a wine jar from the side, slapped open the mud seal on it, and then quickly poured the liquid inside on the sword.

After the sword cooled, there was a soft roar, and then quickly turned into a red light, and flew up in the room, I was startled by this sudden change, and hurriedly ran down the stove, it didn't matter if I moved, the sword seemed to recognize me, and flew towards me quickly, because the speed was too fast, I only felt a red light flash in front of my eyes, and said in my heart, this is over.

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