The space behind the second wall shot was far larger than Lin Chenxing had imagined, and in addition, the layout here was obviously more elaborate than the forging room outside!

In the center of this space, Lin Chenxing saw a huge furnace standing tall. Looking at its volume and the bits and pieces of supporting facilities next to it, he could be sure that this was the smelting furnace of this martial arts world!

All kinds of metal ores are refined here, extracted, their essence is extracted, their dross is removed, and finally they are turned into pieces of metal ingots with different properties for refining tools.

Ten steps away from the smelting furnace, there are forging tables arranged in the form of concentric circles, or it is more appropriate to call them refining tables.

Because there's more to it than just blacksmiths!

The refining of weapons and armor has never been a simple matter!

Starting from the most primitive ore, it needs to be smelted by the smelter with a special method to remove impurities, and the rough iron billet they forged is the most common kind of rough billet!

When the rough blank has been forged for at least ten years, the impurities are further removed, and then handed over to the foundry for smelting, and the weapon mold designed and manufactured in advance is used to cast the mold, so that the rough embryo of the weapon, such as a sword embryo or a knife embryo, can be obtained.

At this step, the rough embryo of the weapon is carefully forged by a real forging master to further improve the hardness, toughness and other properties of the weapon, and finally after the corresponding heat treatment, the step of polishing the blade.

Therefore, the real refining weapon is never something that can be achieved by just taking a few pieces of material and knocking it casually!

The so-called refiner is a person who must be proficient in the three fields of mineral smelting, rough casting, and forging and refining at the same time!

Otherwise, you can only call it a smelter, a caster or a forger!

Lin Chenxing didn't know how many people could really become refiners here, but at least there were a lot of smelters, casters or forgers! But at this time, everyone was busy with their own affairs, and no one looked up to take care of the two of them.

"Follow me!"

Just when Lin Chenxing thought that his new errand was here, the little old man still didn't stop, and went straight to the northeast corner of the hall.

When Lin Chenxing followed the little old man to a closer place, he found that there was a door on the wall here, which was set up quite exquisitely!

"Come in with me."

After the little old man stepped forward and fiddled with one place on the wall a few times, the secret door on the wall slowly opened, revealing a deep passage that sloped downward!

After Lin Chenxing entered this passage, the little old man twisted the mechanism again to close the secret door, and then took him on.

The two of them walked along a long road, not too wide, and could have allowed at most four or five people to walk side by side.

The corridor is very long, and the walls on both sides and the steps at the foot are made of bluestone, and illuminated moonstones are set every two zhang.

A quarter of an hour later, Lin Chenxing estimated that they had walked nearly two miles, but they still didn't see the end of the road, but he felt that the temperature in the road had been slowly rising, and even the bluestone steps under his feet had become warm.

"Could it be that there is a vein of fire in the belly of this mountain?" Lin Chenxing said secretly. He thought about it, and there was only this possibility, otherwise the Instrument Hall would not have spent so much effort to make such a road.

After all, in his experience in Blue Star, the temperature of the charcoal flame is generally only seven or eight hundred degrees, and even if it is strengthened by special methods, it will reach the sky at about one thousand degrees.

There is an aura in this world, and the quality of the wood may change, and accordingly, the temperature of the charcoal flame should increase, but it is estimated that the maximum will not exceed 2,000 degrees.

This temperature is enough for forging, but if it is used to smelt minerals or melt metal materials for casting, it is still a bit reluctant.

So, it was almost certain that the smelting furnace he had seen outside the corridor had either used some special fuel, or it had been connected to the leyline fire.

Coupled with the situation in the Yongdao at this time, he would doubt the existence of fire veins in the belly of this mountain.

"It's here!"

Finally, when the time was close to two quarters of an hour, the little old man who led the way in front finally slowed down.

When Lin Chenxing caught up, he finally saw the true face of the end of the corridor, which was a space about the size of the forging room outside the corridor.

Stepping into the space, he found that the four walls and the dome were made of solid brown lazuli, which was extremely strong.

In the center of this space are four furnaces, but the largest one is only a few feet high, and the other three slightly smaller furnaces guard it in the middle.

Although these four furnaces are much smaller than the smelting furnace on the ground, their workmanship is extremely exquisite. With his excellent eyesight, Lin Chenxing could even see the strange patterns engraved on several furnaces, which were truly like works of art.

"Elder Wei, Jiang Duchen is here!" The little old man took Lin Chenxing and stood still after stepping into this space a few steps, and while bowing and saluting, his voice also spread far away. Seeing this, Lin Chenxing naturally bowed as well.

"Well, bring someone here!" A voice came from behind the furnace.

Hearing this, the two stepped forward and bypassed the four furnace tripods, and Lin Chenxing saw that an extremely wide refining platform had been placed in the area that had been blocked by the furnace tripods before. At a glance, there are no less than 100 pieces of rough tools for forging weapons and forging and refining!

"I've seen Elder Wei!"

"Is that him?"

Elder Wei, who looked to be over half a hundred years old, had a very strong body, wearing sleeveless leather armor on his body, the muscles on his arms were clearly defined, as if carved from gold and stone, and his lower body was replaced by a pair of leather trousers to replace the apron often worn by the forging master.

"Disciple Lin Chenxing has seen Elder Wei!"

"People stay, you go!"

"Yes, the disciple is retiring!" At Elder Wei's command, the little old man bowed, and then left by himself.

"Lieshan, I'll leave it to you!" After the little old man left, Elder Wei directly threw Lin Chenxing to the last person here, a middle-aged man in his forties!

"Yes, master!"

"I've seen Senior Brother Lie!"

"What you have to do is very simple, just guard the furnace when the master is pregnant and raising the spirit iron. I'll be in charge of it during the day, and I'll leave it to you at night, so you can follow around first, and I'll tell you in detail about what you should pay attention to later. ”

"Yes, Senior Brother Lie." Although Lin Chenxing didn't understand what the so-called Pregnancy Spirit Iron meant, he could only respond first. Moreover, it is estimated that he himself knows that this Pregnancy Cultivation Spirit Iron does not seem to have any effect on guarding the furnace.

"Qingling Pill remember to take it on time, and tell me in advance if you don't have it. As long as you're still here, you must take it on time even if you sleep and rest! Otherwise, you know the consequences! ”

"I understand, thank you, brother!"