"Do you want to see me forge a sword?" Li Aoyun couldn't help but be stunned.

"Hmm!" Zhan Chen looked at him firmly.

"Well, you are only allowed to look, not speak, otherwise I cannot guarantee the quality of the sword that will be forged for you. ”

"Got it. ”

So Zhan Chen and Xiao Si followed Li Aoyun into his dilapidated house.

As soon as he entered the house, Zhan Chen felt a fiery breath rushing towards him, so he looked inside the house for a while, and found that the source of the heat was actually a furnace more than one person high.

"What's going on with this furnace? The heat emitted in it is not at the same level as an ordinary furnace, if it were replaced by an ordinary furnace, it would have melted at such a high temperature. Zhan Chen was secretly surprised in his heart.

Zhang Si was considered to be experienced, and he had already left the furnace far away, because with his cultivation at the second level of martial arts, he could not resist such a high furnace temperature at all.

And Zhan Chen also felt very uncomfortable, Huo Kejin, the true qi in his body, had an instinctive aversion to the high temperature, but in order to watch the entire sword casting process in detail, he still insisted on staring by the furnace.

Seeing that he was interested in this furnace, a hint of pride flashed in Li Aoyun's eyes, and he explained: "This furnace is different from the ordinary furnaces you usually see, it is all made of high-temperature resistant Huoyun steel, which can withstand thousands of degrees of high temperature. ”

"And the furnace fire you see is not an ordinary mortal fire, but an earth fire that I have brought in from the underground magma. As he spoke, he opened the lid of the furnace, and an even stronger wave of heat poured out of it.

Zhan Chen felt that the air he saw in his eyes was steamed by this heat wave and began to distort, as if the objects around him were melting. And Zhang Si behind him, I don't know when he has retreated outside the house, carefully aiming at the terrifying flames in the furnace.

Li Aoyun smiled slightly, and said: "And if you want to manipulate such an earth fire, you need to have a deep understanding of the fire attribute true qi, and I can also make the temperature of the furnace even higher!"

As he spoke, his fingers were hanging in the air, and the fire attribute true qi immediately gushed out from his fingertips, forming a line of runes in the place, and at this moment, he pointed towards the furnace fire, and said spring thunder: "Condensation!"

The flame rune was not in the furnace, and a magical scene appeared, the earth fire that was originally wielding flames wantonly suddenly converged into a small fiery red fire ball, slowly squirming, it seemed to become a lot gentler, and the temperature in the room also dropped and returned to a normal state.

But Zhan Chen obviously felt that the heat contained in that small flame was even more terrifying, if he put a piece of mortal iron into it at this time, he was afraid that it would quickly disappear and turn into steam.

"This is my original fire condensation technique, which can further increase the temperature of the earth fire, so that some refining materials that are originally difficult to melt can also be easily melted, this is what makes me more powerful than those ordinary refiners!" Li Aoyun said this with a bit of pride, but he did have the capital to be proud.

Then, as he let go of his finger, the flame swelled and turned into a raging fire again, and the temperature in the room rose rapidly.

After that, he closed the door of the furnace, and the temperature in the room dropped, and he stepped aside, grabbed a ball of clay and began to carve the model for sword casting, and once he entered the field of sword casting, he was like an idiot, stroke by stroke, meticulously carved, like an artist creating a great painting, meticulous.

His attachment seemed to be transmitted to others, and even Zhan Chen beside him held his breath and watched carefully.

When the paradigm of the sword had been carved, he looked left and right, and suddenly frowned, and smashed the masterpiece he had worked so hard to carve in one fell swoop. This unexpected move made Zhan Chen almost scream, sorry for him.

However, Li Aoyun did not feel a little pity, so he destroyed the paradigms he carved one after another, and the paradigms that could be carved in just one hour were carved by him for three days.

Until the last paradigm was carved, Li Aoyun looked left and right, and finally showed a smile, which was satisfied.

He calcined the carved pattern in a furnace, and in a short time, a sword pattern was completely made.

Next, he opened the lid of the furnace, manipulated the fire condensation technique, raised the temperature of the earth fire to the maximum, and then patted the Qiankun bag on his waist, and all kinds of rare refining materials flew into the furnace and were melted one by one.

This is really manual work, even with the high temperature of the earth fire, it will take a lot of time to smelt some rare refining materials, not to mention that Li Aoyun has put dozens of materials into the furnace!

In this process, he maintained the fire condensation technique while gnawing on the elixir to restore his true qi, and two full days passed, but he didn't close his eyes for a moment, and he always insisted.

At this moment, Zhan Chen no longer felt that his 200 medium-grade yuan stones were a bit expensive, just for Li Aoyun's hard work, the price was worth it!

And when these materials are melted into liquid, he has to continue to maintain the ground fire, further purify it, and remove the last slag in the materials, and what can do this step can only be done by the earth fire at a high temperature of nearly ten times that of the mortal fire, to forge a peerless sword, don't think about sloppiness in a single step.

In the fire, a ball of amber transparent liquid was slowly tumbling, like a glass of pure grape wine, Li Aoyun stared at this liquid silently, patted the bag, and took out the main material to be put in the end-millennium cold iron.

The thousand-year-old cold iron can only be regarded as a second-grade refining material, which is not enough to withstand the high temperature of the concentrated earth fire, so the moment Li Aoyun put the thousand-year-old cold iron into the furnace, he immediately stopped his fire condensation technique. The thousand-year-old cold iron quickly turned into a large mass of liquid, which fused perfectly with the original amber molten metal in the furnace.

At this moment, Li Aoyun's fingers flicked lightly, and this hot liquid flew out of the furnace and fell into the paradigm that had been prepared for a long time, forming the appearance of a sword, and quickly solidified, achieving a sword embryo.

The newly formed sword embryo was still very rough and needed to be further polished, so Li Aoyun picked up his hammer and struck the sword body according to a unique rhythm and force, and from time to time stretched the sword embryo into the furnace and quenched it.

At this time, a full ten days have passed, and Li Aoyun is still swinging the hammer in his hand and knocking constantly. "Ding Ding Ding" was accompanied by this series of beautiful percussion sounds like music, and a peerless sword had gradually revealed its hideous face.

When the final blow fell, the sword suddenly began to tremble, like a newborn baby crying.

At this moment, Li Aoyun shouted: "Zhan Chen, quick, take your essence blood and sprinkle it on the sword!"

Zhan Chen was startled, hurriedly bit his tongue, and forced out a large mouthful of essence blood, sprayed on the sword body, after spitting out this mouthful of essence blood, Zhan Chen's spirit suddenly withered a lot, essence blood is the innate foundation of a warrior, every drop is precious, losing a drop of essence blood, ten days can not be replenished!

However, his efforts were not ineffective, the essence blood sprinkled on the sword body, and it did not enter it, and the trembling of the sword became more intense, and suddenly flew into the sky, and finally hung in the air to refract the Dao Xia.

Red, orange, yellow, green, blue, purple, and the glow quickly appeared in front of the two, looking incomparably magnificent.

"Seven-grade sword weapon?" Li Aoyun muttered, but there was a trace of regret in his tone. But suddenly, his eyes widened, and he fixed on the sword he had forged.

Because in addition to the seven rays of light, the eighth ray of light also stretched out its tentacles with great effort—a dark glow.

Suddenly, Li Aoyun's face became extremely excited, and he laughed loudly: "Hahaha! I, Li Aoyun, have forged another eight-grade sword weapon." ”

And the dark glow seemed to respond to his cry, and bloomed even more, and suddenly the sky gradually darkened. For a while, the wind was fierce, the thunder and lightning resonated, and it rained heavily.

The new sword made a fierce sword roar in the wind and rain, like a tiger coming down the mountain and roaring loudly.

Li Aoyun was on a whim, facing the sword in the air, and laughed wildly: "Hahaha, this is the will of heaven! I will call you the tiger roar!"