The entrance to the cave was wide enough for four large carriages to move side by side, three feet high. From the entrance of the cave to the depths of the cave is a straight and wide passage, at least forty or fifty zhang long, and surprisingly, the stone walls of this passage are smooth and solid, and there are traces of artificial excavation everywhere. On the stone walls on both sides of the passage, there is a fluorescent stone that glows for lighting every other zhang.

Yang Ning opened his mouth wide in shock, the big sect is different. One cave is still like this, there are thousands of such caves in the entire mountain peak, how much manpower and material resources will be needed, and how many years will it take to complete!

Walking along the passage into the cave, the further inside, the temperature around gradually increased, and when it reached forty zhang, the air was filled with a strong smell of sulfur.

At the end of the passage is not a forging room for refining weapons, but a conjoined stone wall that has been artificially polished, and in the center of the stone wall, there is a large stone door one zhang high, and there is a small groove in the center of the stone door, which is exactly the size of an identity token. Yang Ning took out his identity token and embedded it in the groove, and the big stone gate automatically opened a wide gap with a 'boom', and a scorching air flow rushed in.

Behind the stone gate is a huge cave, which is full of fluorescent stones that can be found everywhere, illuminating the cave as if it were day. The temperature inside the cave was much higher than that of the passage, and the smell of sulfur was even stronger.

Raising his hand and patting lightly on the big stone door, the identity token popped out of the groove, Yang Ning reached out to take the token, and strode into the cave. After entering the cave, the big stone door closed automatically. Behind him, on the side of the large stone door, there was a small bell hanging from a white metal wire.

The changes behind him didn't attract much attention from Yang Ning, standing in the cave and taking a closer look, such a scorching high temperature was emitted in the center of the cave. There, on the ground there was a three-foot-high black lacquered platform made of metal, on which there were three curved metal pillars in the shape of the finished glyph, and at the end of the pillars, each carved with a hideous tiger head with an open mouth and roaring, and below the tiger's head, there was a huge refining furnace, and the cracked tiger's mouth was just embedded in the furnace wall. At the neck of the hideous tiger's head, a finger-long black metal handle was exposed.

When deciding to enter the cave, Yang Ning specially asked Tang Xiong what were the tools for refining magic weapons in the cave? And asked in detail how to operate the appliance.

So, although he hadn't used it himself, he had a basic understanding of how to do it. The metal handle is a switch used to control the size of the leyline spiritual fire, and it is controlled by pushing the handle with spiritual power.

There are three outlets for the forging furnace, and each forging master has different habits and techniques, and will use familiar methods to forge the furnace according to their own preferences. Some people prefer to use only one outlet, while others prefer to use all three. Of course, either way, the mental control required must be very subtle. Different minerals have different melting points and different flame temperatures.

Yang Ning slowed down and came to the front of the forging furnace, took a deep breath, and calmed his ups and downs. The strong, choking air was inhaled into his lungs, which stimulated Yang Ning's mental concentration.

Profound spiritual power poured out from the center of the eyebrows, turning into an invisible palm, controlling the handle on one of the tiger heads, slowly turning on the switch, and a fiery red flame sprayed straight from the tiger's mouth to the heart of the furnace, calcining the forging furnace.

The fire burned in the furnace for about half an hour, and the huge forging furnace gradually turned from pitch black to red, a process called a warm furnace. The temperature inside the cave is even hotter, and if there is a handful of dry wood placed next to it, I believe that this temperature can ignite the dry wood instantly. Yang Ning, who was standing by the stove, felt that the heat was unbearable, and the heat wave was coming in waves, and he felt less uncomfortable when he ran the Mixed Yuan Spirit Swallowing Technique to drive away the heat waves.

took out a piece of steel that had been exchanged in the Hall of Merit, raised his hand, and threw it into the furnace. The steel mother fell into the forging furnace and did not immediately fall to the bottom of the furnace, as if a magical force dragged it up, and it was suspended in the center of the furnace, scorched by the flames.

Although the steel mother is only a first-class magic weapon training material, its melting point is not low, the blazing flame erupted from the tiger's head has been burning for two hours, and the steel mother has been burned red for more than half an hour, but there is still no sign of liquefaction on the surface.

Just such a piece of steel mother, after burning for such a long time, there is no further state, no wonder it is said that it takes several days to refine a magic weapon. And he stood stupidly like this, as if he couldn't do anything, Yang Ning slowly lost his breath.

A strong spiritual force poured out from the center of his eyebrows again, dividing into two lanes, and at the same time dialing the handles on the other two tiger heads.

"Peng!"

The temperature in the forge rose several times in an instant, and the blazing heat spread out like a wave, filling the entire cave. Yang Ning hurriedly ran the exercises, and planted a layer of aura on his body to defend himself.

"I'll go. It's no wonder that it is at least a monk forger who has to draw qi into the body to use this kind of earth fire to refine magic weapons, and if it is replaced by those forgers, even if they are forgers with peak skills, it will be dangerous. failed to induce the aura to arrange defense, such a high temperature can roast people dry in an instant. ”

Blocking the oncoming high temperature, Yang Ning still let out a long sigh of relief. It was only then that I realized the huge difference between a forger and a forger.

The rising furnace fire emitted a terrifying heat, scorching the steel mother in the center of the forging furnace. The effect of the three flames in unison was obvious, and the reddish steel mother gradually softened and liquefied from the surface at a speed visible to the naked eye, and the speed of change became faster and faster, Yang Ning couldn't help but grin happily.

"I'll fuck that girl! I...... This...... What the hell is going on! ”

However, this happiness lasted less than a quarter of an hour. The result in the forging furnace made Yang Ning's eyes straighten, and he cursed.

That's right! The flame was increased, and the steel mother was quickly liquefied, but the good times did not last long, the temperature in the furnace was too high, and when the steel mother was all liquefied, it actually began to evaporate rapidly. This was also the first time Yang Ning controlled the forging furnace, and he didn't react immediately, and when he realized the situation and hurriedly controlled the handle to turn off the flame, the fist-sized steel mother was only left with a ball the size of a walnut. Looking at the little residue left after cooling, Yang Ning's face was blacker than the bottom of the pot that had not been washed for many years.

The first piece of steel was scrapped like this. Yang Ning took out the little residue from the forging furnace with some chagrin, sat cross-legged on the ground, and worked for five weeks, calming down his unstable mood.

When the mood calms down, take out the second piece of steel and throw it into the furnace. This time, Yang Ning was obviously much more cautious, although he opened the two flamethrowers at the same time, his strong spiritual power not only controlled the switch of the handle at all times, but also kept paying attention to the heating changes of the steel mother.

The blazing flame erupted from the hideous tiger's mouth, scorching for three or four hours, and small red water droplets gradually appeared on the red surface of the steel mother, and they were about to begin to liquefy, but the effect was not very ideal, the number of small water droplets was very small, and Yang Ning's heart began to be a little nervous.

After another hour, the surface of the steel mother was covered with a layer of small water droplets, but it still did not appear in a state of liquefaction immediately, and Yang Ning's mind couldn't help but have a trace of restlessness.

As soon as he gritted his teeth, his mental power changed, and he grabbed the handle of the third flamethrower and pushed it, a flame erupted, and the effect of liquefaction came out obviously, and Yang Ning's mood was a little surging.

As the temperature in the forging furnace rises, the steel mother soon begins to deform and slowly turns to a liquid form.

"Oh, it's done! Haha......"

Just when Yang Ning thought that he had successfully liquefied the steel mother, the ruthless flame hit Yang Ning's excited mood again.

"Pong! Multiply! ”

The liquid steel mother that had been dissolved by the flames was rapidly evaporating, and it had shrunk in the blink of an eye.

"I, ah, ah, ah, ......"

Yang Ning was about to scold his mother, and the reason for the first failure reappeared. In a hurry, the spiritual power surged, and all the flamevents were closed immediately.

Looking at the steel mother left in the forging furnace after the flame was turned off and cooled, Yang Ning was speechless for a while, no wonder Hua Lao suggested taking a few pieces of steel mother to practice, if you can't accurately control the flame, you can't refine it at all.