Zhang Yifeng couldn't help but walk towards the stove. I didn't know if it was an illusion, but Zhang Yifeng didn't think the black iron lump was inconspicuous at all. His hand touched the black iron holy furnace, and he could feel a hint of cheering and excitement coming from the black iron holy furnace.

"It's indeed a rare treasure!" Zhang Yifeng exclaimed. The reason why the Black Iron Holy Furnace conveyed such an emotion must be that it sensed the spiritual fire of heaven and earth in his body.

What is the forging furnace that can have your own emotions?

If this is really a forging furnace that can forge a holy weapon, it is actually placed here covered with dust, it has to be said to be a kind of sadness.

As the thoughts came, Zhang Yifeng's spiritual energy was swelling, as if a hurricane had blown by. All the dust on the black iron holy furnace was blown away.

The dust was blown off, and a black and shiny forging furnace appeared in front of the three of them.

The Black Iron Holy Furnace emits a faint cold air, like a peerless sword that has been sealed for countless years shining brightly again.

Zhang Yifeng's fingers bounced on the black furnace body of the Black Iron Holy Furnace, and immediately made a melodious buzzing sound. It was like a huge morning bell, which made people feel energetic.

"Good furnace!"

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

Looking at the eyes of Zhang Yifeng at the Black Iron Holy Fu, Mr. Fu was extremely relieved and finally found a good master for it.

"Come on, I will teach you the complete forging technique. I said, do it. Light the black charcoal first."

Zhang Yifeng, following the old man's instructions, put the black charcoal into the bottom of the furnace and ignite it. Then he began to pull the blower.

At this time, Mr. Fu took out a pile of rusty metals from the room and threw them into the Black Iron Holy Furnace. He began to say while throwing it: "In fact, the soul blood casting technique is not very mysterious, but when smelting the material, it is made by adding a head cut off from the living beast."

Mr. Fu began to explain to Zhang Yifeng the method of casting the soul blood casting technique.

Since this time it was just a practice, there was no live beast's head added to the Black Iron Holy Furnace, and even the mold was not used. The refined iron was directly cast into an iron block and then supplied to Zhang Yifeng forged it.

In fact, forging with the meteor hammer method does not require molds 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 process thoroughly, Mr. Fu spoke solemnly: "The most important step is to rekindle the fire!"

Zhang Yifeng nodded. Although he had never been involved in forging, backfire was common sense that everyone knew.

According to the old man's instructions, Zhang Yifeng put the forged dagger back into the forging furnace, and this time he did not pull the blower. According to Mr. Fu, tempering only requires keeping the temperature in the furnace at a higher temperature, and does not need to raise the temperature too high.

In fact, this is easy to understand. If the temperature is too high, wouldn’t it melt the forged thing again? It means that all the previous work has become useless.

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

Early the next morning, after a sleep, the rich old man took out something similar to sugar from his arms and threw it into a wooden barrel filled with water.

What is extremely magical is that the "sugar" melted quickly after entering the wooden barrel and emitted a chill of cold air.

Seeing that Zhang Yifeng was a little puzzled, the old man smiled and said, "Real gold is not afraid of fire, but in the same way, you must not be afraid of water. You should know that after extreme heat, you will encounter extreme cold, even the steel will collapse. But my requirement is that even if you suffer extreme cold after extreme heat, you must withstand it, otherwise it will be a failed work!"

Zhang Yifeng tried the water temperature in the wooden barrel. He felt that the frozen bone was definitely tens of degrees below zero, but strangely, at such a low temperature, it didn't freeze.

In confusion, he took out the dagger and was very nervous. Of course he knew the terrifying power of heat 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.

laugh……

A large stream of white smoke rose from the wooden barrel, making a harsh sound.

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

Fortunately, the dagger didn't break.

"Old man, am I successful?"

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

Crack!

The dagger actually shattered like glass.

Even after hundreds of times of tempering by Zhang Yifeng, this dagger still cannot withstand the double test of extreme heat and extreme cold.

Forging failed!

Looking at the dagger that broke all over the ground, Zhang Yifeng's mood instantly became bad. He was a human being in two lives. This was the first time he failed like this!

A bitter smile appeared on the corner of his mouth, Zhang Yifeng shook his head and said, "Old man, there are not many things that can withstand extreme cold and extreme heat."

The old man snorted coldly and said, "Fart! If something forged through the meteor hammer technique cannot even bear the extreme cold and heat, it will be a failed work!"

The rich old man's voice was sonorous and his face was full of seriousness. This was an old man's persistence in forging.

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

After the rich old man finished speaking, the man had already left.

"Sister Nan Xin, do you think I'm too stupid?" Zhang Yifeng couldn't help feeling a little uncomfortable after being scolded by the rich man. This was the first time that the rich man had shown dissatisfaction since he followed the rich man.

一旁,南馨摇了摇头道:“张大哥,你才第一次锻造,失败也很正常,富老爷子第一次锻造,说不定还不如你呢.”

Hearing this, Zhang Yifeng nodded with a smile, and then drove out the depression in his heart.

He is still young and has time.

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

The second time he forged in front of the old man, Zhang Yifeng was particularly serious. Because he knew that as long as he had slackened, the things he forged could not withstand the perverted water refining method of rich old man.

However, what disappointed Zhang Yifeng was that what he spent half a day to create quietly still shattered in the process of water refining.

The second time, it still failed!
Chapter completed!