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Zhang Yifeng involuntarily walked towards the stove, I don't know if it was an illusion, Zhang Yifeng at this moment didn't feel that this black iron bump was inconspicuous at all. His hand caressed the Black Iron Holy Furnace, and he could actually feel a trace of joy coming from the Black Iron Holy Furnace.

"It's a rare treasure!" Zhang Yifeng exclaimed. The reason why the Black Iron Holy Furnace transmitted such emotions must have sensed the Heaven and Earth Spiritual Fire in his body.

A forge that can have its own emotions, what is it if it is not a treasure?

If this is really a forge furnace that can forge holy weapons, it is a sad thing to be placed here and covered with dust.

As far as his mind went, Zhang Yifeng's aura was full of aura, like a hurricane blowing. All the dust on the Black Iron Sacred Furnace was blown off.

The dust was blown off, and a black, shiny forge appeared in front of the trio.

The Black Iron Sacred Furnace exuded a faint chill, as if a peerless sword that had been sealed in the dust for countless years was shining again.

Zhang Yifeng's finger flicked on the black body of the Black Iron Holy Furnace, and suddenly let out a melodious humming sound. It's like a huge morning bell, which makes people feel refreshed.

"Good furnace!"

Although Zhang Yifeng is not familiar with the forging furnace, he also knows that this is indeed a good furnace.

Looking at Zhang Yifeng's eyes on the Black Iron Holy Furnace, the rich old man was extremely relieved in his heart, and finally found a good owner for it.

"Come, I'll teach you the complete art of blacksmithing. I said, you do. Light the black charcoal first. ”

Zhang Yifeng followed the old man's instructions and put the black charcoal into the bottom of the furnace and lit it. Then he started pulling the blower.

At this time, the rich old man took out a pile of rusty metals from the house and threw them into the black iron holy furnace, and began to say as he threw them: "Actually, the soul blood casting technique is not so mysterious, just add a head cut off from a living beast when smelting materials. ”

The rich old man began to explain to Zhang Yifeng the casting method of the soul blood casting technique.

Since this was just a practice, he didn't add a living beast head to the Black Iron Sacred Furnace, and he didn't even use a mold. The molten iron was directly cast into an iron block, and then supplied to Zhang Yifeng for forging.

In fact, using the meteor hammer method to forge does not require a mold at all, because any shape can be forged with a flame hammer.

Zhang Yifeng can even create embroidery needles, so what else can't be created.

Half a day passed, and a small dagger gradually took shape under Zhang Yifeng's processing.

When Zhang Yifeng finished the processing, the rich old man said very solemnly: "The following is the most important step, tempering!" ”

Zhang Yifeng nodded, although he had never been in contact with the forging industry, but tempering was common sense that everyone understood.

According to the old man's instructions, Zhang Yifeng put the forged dagger back into the forging furnace, and this time did not pull the blower. According to the rich old man, tempering only needs to keep the temperature in the furnace at a higher temperature, and there is no need to raise the temperature too high.

In fact, this is also very understandable, if the temperature is too high, it will not melt the forged things again, which means that all the previous work has become useless.

Let the forged dagger be tempered again in the furnace fire for five hours, that is, Zhang Yifeng tempered it for one night!

Early the next morning, after sleeping well, the rich man took out something similar to candy from his bosom and threw it into a wooden bucket full of water.

What is extremely strange is that after the "sugar" enters the wooden barrel, it quickly melts and emits a cold air.

Seeing that Zhang Yifeng was a little puzzled, the old man smiled and said: "Real gold is not afraid of fire to refine, but in the same way, it must not be afraid of water refining." You should know that even if the steel is crumbled after the extreme heat, even if it is extremely cold, but my requirement is that even if it is extremely hot and then extremely cold, it must be able to withstand it, otherwise it will be a failure! ”

Zhang Yifeng tried the temperature of the water in the barrel. I feel like my bones are frozen, there are definitely dozens of degrees below zero, but the strange thing is that under such a low temperature, there is no freezing.

In confusion, he took out the dagger, feeling very worried. Of course, he knew the terrifying power of thermal expansion and contraction. He was afraid that the dagger he had forged for a long time would not be able to withstand the power of water refining and would directly shatter it.

Laugh at......

A large puff of white smoke rose from the barrel with a screeching sound.

Five minutes later, Zhang Yifeng took out the dagger from the barrel with great nervousness.

Fortunately, the dagger did not break.

"Old man, I've succeeded, right?"

The rich old man smiled coldly, took the dagger, and threw it on the ground without even looking at it.

Quack!

The dagger shattered like glass.

Even after Zhang Yifeng's thousands of tempering, this dagger still couldn't withstand the double test of extreme heat and cold.

Forging failed!

Looking at the dagger shattered to the ground, Zhang Yifeng's mood instantly became bad, he was a man in two lives, this was the first time he had failed so much!

A wry smile appeared at the corner of his mouth, Zhang Yifeng shook his head, and said, "Old man, extremely cold and extremely hot, there are not many things that can withstand it at all." ”

The old man snorted coldly and said, "Fart!" If something forged by the Meteor Hammer Method can't even withstand extreme cold and heat, it's a failed work at all! ”

The rich old man's voice was sonorous, and his face was full of seriousness, which was an old man's dedication to blacksmithing.

"Don't go back today, just practice in the backyard for a day, and I'll come back tomorrow."

The rich old man's words fell, and the people had already left.

"Sister Nanxin, do you think I'm too stupid." was reprimanded by the rich old man, Zhang Yifeng was inevitably a little uncomfortable. This is the first time that the rich old man has shown dissatisfaction since he followed the rich old man.

On the side, Nan Xin shook her head and said, "Brother Zhang, you are only forging for the first time, and it is normal for you to fail, the rich old man is forging for the first time, maybe it is not as good as you." ”

Hearing this, Zhang Yifeng smiled and nodded, and then drove out the bitterness in his heart.

He's still young, and there's time.

The day passed quickly, and early in the morning of the second question, the old man appeared in the backyard again.

Forging in front of the old man for the second time, Zhang Yifeng was very serious. Because he knew that as long as there was the slightest slackness, the things he forged would not be able to withstand the perverted water refining method of the rich old man.

However, to Zhang Yifeng's disappointment, what he spent half a day contemplating and creating was still shattered in the water refining process.

The second time, still failed!

Zhang Yifeng finally understood that this soul blood casting technique was not something he could rush to achieve, this time it had been too long to come out, and it was time to return to Hangyang City and report to Jingkai University.