After the iron was cooled, the whole iron was not black as usual, but showed a bright silver color, with a faint metallic luster.

Ye Bufan picked up the iron with both hands, his arms suddenly sank, his heart was shocked, and he said secretly: "How can it be so heavy." After feeling it carefully, he found that this piece of iron was about five hundred pounds, and among all the iron he forged, this piece of iron was definitely not too big, but it weighed heavier than all the iron he forged.

But this was nothing, and what surprised him even more was that there were five strange mysterious lines on the iron block, faintly exuding a faint strong momentum.

Ye Bufan looked at this piece of iron in disbelief, what were the lines on it, how could it exude such a strong momentum?

"Did you find anything?" Li Tian's voice suddenly came, the look on his face had recovered, and he pointed to the iron block and said to Ye Bufan.

"The weight is deep and the momentum is strong. Ye Bufan thought for a while before he said in a deep voice.

Li Tian said lightly: "Is there anything else?"

Ye Bufan was stunned, and said in his heart: Also, could it be that the observation just now was not careful enough?

When I put the iron in front of my eyes again and looked at it carefully, I found that the texture and toughness of this piece of iron were stronger than that of the previous iron.

After a while, he said: Teacher, this piece of iron can no longer be described as ordinary, it seems to have surpassed ordinary iron. If you use this piece of iron to forge a weapon, you will at least reach the level of a mysterious weapon. ”

Although he didn't know the true grade of this piece of iron, it was true that if he wanted to forge a good weapon, the materials needed for it must meet the requirements, which was the eternal truth of the forging process.

"Not bad. Li Tian nodded appreciatively and continued: "The essence of pig iron has no limit. What we think and what we know is ingrained in our minds. We think that this kind of iron has reached its limit, but in fact it has not fully reached its limit, and how can we know if we don't try all this. ”

After finishing speaking, he pointed to the piece of iron in Ye Bufan's hand and continued: "Just like this piece of iron, do you think it has reached its limit." ”

"What, this piece of iron hasn't reached its limit yet?" Ye Bufan looked at Li Tian in shock.

Li Tiandao: "Of course, this piece of iron is only tempered with a hundred pieces of iron, so what if there are two hundred, three hundred, or even thousands of pieces? ”

patted Ye Bufan's shoulder, and said earnestly: "Bufan, you have to remember that forging is not just as simple as removing the impurities in the pig iron and then casting the iron ore into weapons. There are too many truths in it, and everyone's understanding is different, and the comprehension is different, so all this can only be understood by yourself. ”

Everyone has a different way to go, and each intersection will have a different choice, Li Tian can't guide him in the direction of his progress, all he can do is to correct some of his mistakes in the process of Ye Bufan's walking.

Ye Bufan felt the warmth in Li Tian's words, nodded solemnly, and said, "Teacher, don't worry." ”

Suddenly, Ye Bufan thought that the hammer method forged by Li Tian just now was very different from the past, and asked, "Teacher, what is the hammer method you forged just now?"

Li Tiandao: "This is a kind of mystical skill, which is called a thousand tempers. ”

"Mysterious skills?" Ye Bufan flashed a trace of doubt, and said secretly: This should be the same name as martial arts, right?

Li Tiandao: "Xuan Technique, it is the name of the skill of the Xuan Qi that is operated in a special way, so that the Xuan Qi is released in various forms, and the level of the Xuan Technique is also the thirteen levels of the first grade to the Divine Xuan Level. ”

He laughed self-deprecatingly, "It's a pity that I'm a waste person now, and I can't exert my real power, otherwise this piece of iron can reach at least nine grades, but it's a pity that now it is only five grades." ”

"Five pins?"

Li Tian nodded and said, "The difference between the breath of metal materials and mysteries is that metal materials can form lines on the surface more directly, and each line means that the material has one more level. However, the grade of the material does not represent the grade of the final forging of the mystery. ”

Ye Bufan was puzzled and asked, "Teacher, why doesn't the grade of the material represent the grade of the final forging of the Xuanqi?"

"This is because when forging each mystical weapon, the mystic master will add some special materials to the original material to enhance the power of the mystical weapon after it is formed, such as this five-grade iron block, if you add ten thousand years of cold iron, then the grade of the mystic weapon will reach at least seven grades, and at most three grades will not exceed nine grades. But despite this, only those who are highly skilled and experienced in hammering can dare to do so, and they must be very sure that they can successfully increase the grade of the mysterious weapon before they dare to hammer it. As for those who are not skilled in the arts, they will either destroy the materials, or they will greatly reduce the grade of the mystical weapons. ”

It wasn't until Li Tian finished speaking that Ye Bufan somewhat understood the process of forging the Xuan Weapon, but he still had some doubts in his heart, and asked, "Teacher, is it the same for the Xuan Weapon above the Xuan Level?"

Li Tiandao: "The mystical weapons above the human Xuan level are different, I told you before that the mysterious weapons above the human Xuan level will attract the Xuan Weapon Thunder Tribulation." If the material grade of the mysterious weapon is too low, it will not be able to survive the thunderstorm at all. Therefore, the mystic weapons above the human level can only use higher quality materials. Therefore, the reason why human Xuan-level mystical masters are so rare is also due to the problem that the materials are not good. ”

"I see. Ye Bufan suddenly understood, no wonder the Xuanwu Continent people Xuanwu Continent Xuanwu above the Xuanwu level and above the Xuanwu Masters are so rare, on the one hand, it is cultivation, on the other hand, it is the materials, even if the Xuanwu Cultivators are enough, as long as the materials are not good, it will be useless.

Li Tian continued lightly: "Where's your Returning Sword, give it to me." ”

"The teacher is here. ”

A trace of doubt flashed in Ye Bufan's heart, and he didn't understand what Li Tian wanted the Returning Sword for, but he still handed the Returning Sword to Li Tian from his calf.

Li Tian took the Guixin Sword, directly threw the Guixin Sword and the five-grade iron into the fire, and said, "Go and drum the fire." ”

Seeing this situation, Ye Bufan didn't know that Li Tian was going to help him re-temper the Returning Heart Sword, so he was overjoyed and hurriedly ran to the furnace mouth.

In the past year, he has not known how many times he has pulled the bellows, skillfully pulled up the handle on the bellows, and puffed up the gusts of furnace wind with both arms.

The furnace fire immediately burned brightly, and the surrounding temperature became extremely hot, and the spiritual power of the Nine Dragons Jue flowed through the meridians of his body, resisting this blazing breath, and also making the movements in his hands more violent and rapid.

The body of the Guixin Sword was quickly burned red, Li Tian picked it up and put it on the iron furnace, and the casting hammer struck it on the Guixin Sword, this action was very ordinary, but if you look carefully, there are some invisible iron bumps on the Guixin Sword, and every time Li Tian knocks on the hammer, the iron bumps on it are knocked flat.

The speed of Li Tian's knock is definitely fast, but in the blink of an eye, all the iron bumps on the heart sword have been knocked flat.

At this moment, Li Tian stopped the movement in his hand and said in a deep voice to Ye Bufan: "The fire is more violent." ”

"Still more violent?"

Ye Bufan was shocked, the current flame would definitely exceed two thousand degrees Celsius if calculated in terms of temperature, and if this fire was a little more intense, it would directly melt the iron.

"Hurry up!"

Li Tian's face looked at the five-grade iron block in the furnace with a solemn face, and spoke again.