In the end, Gu Chen told the old man about the problems he had told Lu Qi before, and during the period, he did not forget to send someone to take the drawings he designed and compare the two.

After a long time, Master Yi pondered the iron sword he handed over for a long time before he said softly: "Young Master Guchen, it's not that what you said can't be cast, it's just that the strength of the weapon made in this way is too low, and it can't compete with others at all." ”

"Well, what Master Yi said is very true, and I know this. When Gu Chen heard this, he also nodded hurriedly, and continued: "It's just that you always know that this thing is only a half-finished product? This kind of process is only fifty percent complete. ”

"Oh, is there such a thing?" Master Yi was startled, and his gaze couldn't help but fall directly on Gu Chen's face, as if he wanted to see some clues from his expression.

As a person who has dedicated his life to casting, creating such a weapon is simply handy, but even though he has come into contact with countless weapons, he has never heard of a weapon that has been cast, and it is only a semi-finished product.

"Young Master Guchen, forgive the old man for being stupid, I don't know if I can tell the reason. ”

"Hehe, you are too old, in fact, not only do you not know, I believe that 90% of the foundry craftsmen on this continent will not know. Gu Chen pretended to smile mysteriously: "I don't know if you have ever heard of such a thing as Tiangang Cold Iron?"

"Tiangang cold iron, you mean?"

As soon as the words fell, Master Yi was suddenly shocked by his words: "Naturally, I have heard that this kind of strange thing is very rare, but it is said that as long as it is mixed with a little bit of steel, it can seem to get a qualitative change, sharpening iron like clay, even if it is called a divine sword." Just ......"

Speaking of this, the look of shock on the old man's face gradually disappeared, but it was replaced by a thicker doubt: "It's just that from the old man's knowledge, it is impossible for such a strange thing as Tiangang cold iron to be refined, let alone mixed with steel, at least I have never seen it in my life." ”

"Hehe, can't you refine it?" Gu Chen stared at the old man without squinting, and a smile slowly rose on the corner of his mouth: "Master Yi, if I say that I can refine Tiangang Cold Iron, do you believe it?"

"Hmm, what? can you ......"

In a word, Master Yi's expression at the moment was simply wonderful, and he looked at the young man in front of him who could almost be his grandson in shock, and he couldn't speak for a long time.

On the side, Lu Qi was not much surprised by his words, after all, she had already known the identity of Gu Chen's puppeteer, and what could they not do with such a powerful being.

After pondering for a long time, Master Yi slowly came back to his senses, and extreme surprise appeared on his old face.

He grabbed Gu Chen's arm and said, "Really, you can really refine such a strange thing as Tiangang Cold Iron, and you can also mix it into the weapons I forged?"

"Hehe, of course. ”

Gu Chen nodded more confidently.

"Haha...... Okay, good, heroes come out of teenagers, sure enough, heroes come out of teenagers, I didn't expect that I, an old immortal, could still participate in the casting of such divine weapons in my lifetime, that's enough, that's enough. ”

"Young Master Gu Chen, don't worry, since you have said so, the old man in the next casting must be done exactly according to your design, although the time may take more, but after the casting, I will notify you as soon as possible. ”

After saying that, Master Yi turned around and ran towards the casting furnace, and from his back, Gu Chen could also see the old man's excitement at this moment.

Yes, what an honor it would be for this old man who regarded casting as his life to be able to build a weapon that is unique in the world in his lifetime.

"Master Yi, I will definitely not let you down. He muttered to himself.

"Alright, since things are almost done here, it will take some time for them to make some more weapons, so I'll leave here first, and I'll come back after a while. ”

After walking around the workshop again, Gu Chen was obviously very satisfied with the Yiqiē here, and then said to Lu Qi.

"You're going to leave again, it's only been a while......" Hearing that he was leaving, Lu Qi's originally joyful face also dimmed, lowered his head, and kept fiddling with the placket in front of him, and said in a low voice.

"Hehe, silly Nizi, it's not like I'm not going to come, and I have more important things to do when I come back this time, don't you also see that I'm injured, in general, take care of my body injuries first." ”

Gu Chen patted Lu Qi's head fondly, and the reluctance that Xiao Nizi subconsciously revealed also made him feel a warm current in his heart, but now he still has to go back to the academy to hand in the task, and now the puppet power in his body is constantly being devoured by the lava spirit saliva, and he must find a way to replenish it back.

"Is that so...... That, that, well. Lu Qi held her mouth, a pair of rippling blue eyes flashed with a faint water, but when she heard that he was going to heal his injuries, she couldn't stop it, after all, she didn't want the man in front of her to leave any scars.

"Then I'll leave it to you, and the next time I come, it will be the beginning of our glory. Gu Chen pinched the pretty face again, until a touch of crimson floated on the fair face, then he rubbed the tip of his nose, laughed, and then turned around and walked out of the workshop.

Only the shy, elf-like little Nizi was left.

Coming out of the workshop, although he didn't stay here for a long time, it was already sunset, Gu Chen didn't stop any longer, and ran all the way to Haotian Academy in the west of the city.

At the entrance of the academy, it was still the mysterious courtyard gate, holding the voucher left when he went out, and before he could knock on the door, the old man guarding the door had slowly emerged from inside.

When he saw him for the first time, there was uncontrollable surprise in the old man's eyes, and he was stunned for a long time before he asked softly, "You're back so soon......?" Succeeded?"

"Hehe, live up to expectations. ”

Hearing this, Gu Chen didn't hide it, and directly took out the delicate jade bottle that was clinging to his arms. In the jade bottle, the molten fire with a flame red color was slowly floating, and it seemed extremely quiet.

"Whew...... It's really this thing, you little one, that's good. ”

The moment he saw the lava fire, the surprise in the old man's eyes was even greater, and he never thought that Gu Chen would bring this strange thing back to the academy in less than a month.

"Come in, go and hand in the task. ”

Immediately, the old man also opened the courtyard door for him, and looked at Gu Chen, who was running all the way in, he also nodded unconsciously, and a subtle light flashed in the old man's eyes.