"Hahaha!"

"Indeed, it seems that I am really old."

"Today's world is indeed changing with each passing day, as far as I was young, if someone wants to say that in the future, there will be a spaceship that can go to the moon for nine days, and there will be a big ship, and you can go down to the five seas to catch turtles, I will also find it hard to imagine."

"I'm old, and the world of the future will be young after all."

Tie Guanlan said with a smile, and then directly welcomed Zhao Cheng in.

And Tie Qiunan on the side, at this time, when he heard their conversation, he felt a little dizzy, and suspected that he was dreaming.

She has a sword saint grandfather, naturally she will not know what the sword master means, she is now seventeen years old, and her basic swordsmanship can only reach the master level, that is, Iv9, with her progress, it is only possible to become a swordsman before the age of 24, and there is no guarantee.

But Zhao Cheng is only seventeen now, the same age as her, but her grandfather said that the other party is a saint like him, and the world is too magical.

However, hearing Tie Guanlan say this, she seems to be a little bit like this when she thinks about it at the moment, because Tie Guanlan usually looks at the past, but he is just a relatively strong middle-aged man, and he can't see the slightest surprise, and Zhao Cheng is the same.

And as far as she was in a trance, Zhao Cheng and Tie Guanlan had already entered the living room.

"Brother Zhao Cheng, I already have an idea about the matter of casting a sword, your divine will is a vast force, if you want to cast a sword, it is best to smelt and forge the three materials of Shouyang Copper, Kunlun Cold Iron, and Warm Jade of the Four Seas, these three materials, one yin, one yang and one mixed element, are and the number of three talents are endless..."

"I don't know what you think about this, brother?"

Tie Guanlan asked.

What he said was just his own thoughts, if Zhao Cheng had other ideas, he would naturally consider it.

"I don't know much about sword casting, so let's do what you said, brother."

Zhao Cheng responded.

He is not a person who does not know how to pretend to understand, and there is no need to be like this, no one in the world is omniscient and omnipotent.

The wise and the strong will not hide their ignorance, because they are all confident.

"Okay!"

Tie Guanlan nodded, and then invited Zhao Cheng to the study and asked Zhao Cheng to draw the sword shape he wanted.

Zhao Cheng had never learned to paint before, but after more than a hundred times, he had already filled this skill.

It was Zhao Cheng who lifted the pen, and immediately, soon, an ancient long sword jumped into the painting.

"What a wonderful pen!"

Tie Guanlan admired, he is not a painter, but as a sage, he sees things directly by his divine will, and he can know at a glance whether it is good or bad.

At this moment, in his eyes, Zhao Cheng's painting, the sword in the painting, seems to be about to jump out of the painting, and the flying sword beheads people are incredible.

At the same time, he couldn't stop thinking in his heart, is there really a heaven and a man in the world?!

The so-called celestial beings are not celestial beings who descend from the sky, but people whose spirit is in line with the general trend of heaven and earth, who adheres to the mandate of heaven and is destined to accomplish a great cause in the world.

But counting the history, such characters have never existed only in myths and legends, and if you really want to find examples, no matter how powerful the past is, they are far from the legendary celestials.

At this moment, Tie Guanlan felt that he seemed to have seen the truth.

At this time, Zhao Cheng looked at his painting, and he was also satisfied, the long sword in the painting was nothing else, it was the appearance of the empty tribulation now, or rather, the appearance of the sword in Zhao Cheng's heart.

The form of the empty tribulation is the embodiment of Zhao Cheng's mental image.

.....

The time to open the furnace was the next morning, and early this morning, Zhao Chengcheng saw three pieces of different iron.

One piece seems to be red copper, but in fact it is the copper of the first yang.

According to legend, Emperor Xuanyuan's Xuanyuan sword was cast from the iron of Shouyang, engraved with the sun, moon and stars on one side and flowers and trees on the other.

This is a legend.

The Xuanyuan sword, Zhao Cheng has seen it, but it is not genuine, it is said to have been cast in the Warring States Period.

In the era of Emperor Xuanyuan, at that time, there was no such thing as alien iron.

And the name of Shouyang Copper is based on the legend of Xuanyuan Casting Sword, the legendary Shouyang Copper, Zhigang Zhiyang, the alien iron in reality, and the spirituality in it is indeed the same.

Kunlun cold iron is a piece of black fine iron, looking at it, it gives people a cold feeling, and even in the summer to touch, you will feel cool, but in fact, very early, there was a laboratory with a thermometer to measure, found that it is just a psychological illusion, what temperature should be or what temperature.

There is only the warm jade of the four seas, which is said to be jade, but it is actually a kind of iron, but at a glance, there is a feeling of jade, the ultimate warmth and lightness.

Heteroiron, is a general term, if you want to calculate carefully, it is also divided into three, six, nine and so on, and the three pieces in front of you, undoubtedly each piece is superior, and money can't buy it.

For true geniuses, the state is never stingy.

This is also the first time Zhao Cheng has seen different iron, and he can feel that in the different iron, there is a wonderful fluctuation, but compared with the famous sword, these raw materials are missing some of the most critical things.

The place where the sword was cast was in the backyard, which was similar to what Zhao Cheng had expected, and the furnace tools here were the crystallization of modern technology, not the ancient carbon furnace bellows.

However, this is normal, science and technology are developing, and casting nature must also develop.

"This furnace is still in the experimental stage in the laboratory, the temperature can be set in advance, adjusted at any time, and the maximum temperature can reach 4,000 degrees."

In the foundry room in the backyard, Tie Guanlan pointed to the furnace full of science and technology and said with a smile.

4,000 degrees, with the current technology, is actually nothing, the powerful equipment is so big, and the temperature can be flexibly adjusted.

In the blink of an eye, a few days passed, and for several days, Tieguanlan turned on the furnace three times a day, once in the morning, noon and evening, each time for about an hour.

However, neither the time nor the length of the furnace is fixed, but constantly changing.

Zhao Cheng knew that this was not Tie Guanlan's trickery, but it was in line with the changes of the time, place and people.

In ancient times, swordsmiths paid attention to the right time and people in sword casting, and they had to choose the auspicious day of the zodiac.

According to science, this is due to the change of weather and the humidity of the air, which will also have an impact on the finished product cast.

With the development of casting to the present, this point has not only not disappeared, but has become more refined.

However, only a sage like Tie Guanlan can keenly grasp the changes in it, and the realm is too low to do this at all.

And from the third day, Zhao Chengcheng began to use the spirit of the iron bar in the hands of Tie Guanlan, three kinds of different iron.

Casting an ordinary famous sword naturally doesn't need to be so troublesome, but if you want to reach the highest fit with the famous sword, 100%, or even more to stimulate the spirituality in the sword, you have to do so.

This is also Zhao Cheng's realm is enough, and some people with poor spiritual realm have to bleed in the process of casting, and use blood to nourish the sword.