This little boy was born very cute, with a pink face, wearing a blue gown, and he was bored in the blacksmith shop to watch others make iron. Seeing this little boy, Xia Yu was slightly startled, because this boy was an old child who was one of the Eight Sages of Taixue!

Why is Elder Cheng here? Xia Yu immediately greeted him, and at this time, the old child also discovered Xia Yu. Xia Yu walked up to the old child and immediately bowed: "Disciple to meet Elder Cheng." ”

"Yo! Xia Yu, why did you come to the blacksmith shop? Aren't you a refiner?" Seeing Xia Yu, the old child was a little surprised.

"I'm here to buy some mortal weapons, because the quantity is huge, I can't refine it alone. Xia Yu said with a smile.

The old child was slightly stunned: "What do you monk want to do?"

At this time, the man just now had already taken Xia Yu's drawings to the inner hall of the blacksmith shop, the inner hall was also surrounded by firelight, an old man stood by the stove, naked and naked, revealing the muscles like iron blocks all over his body, and his arms were shaking a huge iron hammer, and he was constantly beating a piece of silver iron, and the sound of "clanging" was like a regular rhythm, echoing in the wide inner hall.

This piece of Tianshan cold iron under Hao Feng's hand has been beaten by him for seventy-seven and forty-nine days in a row, and when Hao Feng beats it to ninety-nine and eighty-one days, this piece of cold iron will become a sword in his hand that sharpens iron like clay. The so-called three hundred and sixty lines, the line is the champion, although the weapons created by the blacksmith are all mortal weapons, but Hao Feng can create mortal weapons that are sharper than immortal weapons, and a great masterpiece under his command is the Heavenly Sword. It is a peerless sword that can be compared to an immortal weapon.

The man walked over and said respectfully on the side: "Master, there is a big order here, and a total of 100 pieces will be built." ”

"Oh, is it?" Hao Feng put down the hammer, picked up the towel next to him and wiped his sweat. "What is it?sword?or armor?"

"No, this thing has never been seen in the disciple's life, please take a look at it. The man said, his hands presenting the drawings of the three-dimensional motorized device.

Hao Feng took the drawing and looked at it carefully. A pair of thick eyebrows like watermelon knives couldn't help but wrinkle slightly: "What is this? The old man has lived a lifetime." I've never seen anything like this before, so who's here?"

"The disciple doesn't know, looking at the other party's appearance and demeanor, he should be a monk. The man said.

Hao Feng snapped and closed the drawing. Raising his feet, he walked to the front hall: "Go." I'm going to meet this person. ”

Xia Yu smiled: "I want to build some weapons." There are a lot of them, and the elders should know that the war between Zheng Guo and Wei Guo is imminent. ”

"Oh. I see. The old boy nodded.

Xia Yu then asked, "However, why is the elder in the blacksmith shop?"

The old child grinned, revealing a row of small and neat white teeth: "Oh, this old man Hao is my good friend, I have nothing to do to come and see him today." ”

"Good friends. ”

"Yes, you don't know, Old Man Hao is the first batch of disciples of Tai Academy, this guy can't cultivate well, but his life is hard enough. ”

As soon as the old child's words were finished, Hao Feng's rough voice came from afar: "You old immortal, no matter how hard my life is, I can't be hard against you!"

Xia Yu and the old child were startled at the same time, and as soon as they turned their heads, they saw an old man coming over in a hurry. When the old friend reunited, the old child couldn't help laughing: "Hahaha, you old guy, I haven't seen you for many days, I thought your soul had returned to Jiuquan." ”

"Don't worry, if you die, I won't die, I'm still waiting to send you to the end. Old man Hao also laughed, and after speaking, he turned his eyes and looked at Xia Yu who was standing beside the old child.

"Oh, this is a disciple of my Tai Academy, called Xia Yu, he came today to patronize your blacksmith shop, for my sake, let's give a twenty-percent discount. The old kid laughed.

"Hello, junior Xia Yu, I have seen Senior Hao. Xia Yu bowed politely.

At this time, the man who followed behind Hao Feng immediately said, "Master, it's the drawings sent by this guest." ”

"Oh?!, you brought this drawing. Hao Feng asked.

"It's me, I wonder if you can create something on this map?" Xia Yu asked.

"Yes, yes, but I have a question, what are you going to build? Old man, I've been fighting weapons and armor all my life, and I've never seen anything like it. Hao Feng said.

After he finished speaking, the old child couldn't help but lean over curiously, took the drawings of the three-dimensional motorized device, and unfolded it: "What is this? The old child put down the drawings and looked at Xia Yu with a puzzled expression.

Xia Yu originally didn't plan to hide it, because this kind of thing can't be hidden, and after he establishes a three-dimensional mobile unit, sooner or later, the three-dimensional mobile device will be known to everyone, so he said bluntly now: "This thing is called a three-dimensional mobile device, and it is a weapon that I invented." ”

"Weapons?!" Hao Feng and the old child glanced at each other, and they both saw surprise and confusion in each other's eyes.

Next, Xia Yu simply explained the movement principle of the three-dimensional mobile device to the old child and Hao Feng, the two were shocked after hearing it, but the focus of the two was different, Hao Feng was amazed that Xia Yu could invent such an amazing work, every part of the three-dimensional mobile device surprised Hao Feng, he praised Xia Yu, saying that Xia Yu's whimsical ideas can be worth ten thousand taels of gold. After listening to this, the old child's eyes flashed with inspiration, and he immediately thought of the real amazing thing about the three-dimensional mobile device, which would even change the form of future warfare!

On the way back, Xia Yu walked with the old child, the two walked all the way in the noisy urban area, chatting while walking, chatting very speculatively, the old child has lived for a hundred years, learned to be rich in five cars, talented and eight buckets, his amazing ancient and modern knowledge made Xia Yu surprised and admired. However, Xia Yu is a man who has experienced the baptism of nine years of compulsory education, and what trigonometric functions and the Pythagorean theorem also stunned the old children.

After chatting, Xia Yu suddenly said, "Elder Cheng, in fact, since the day I met you, there has been a problem that has plagued me for a long time, and today I have the courage to ask the elder about this problem. ”

"Oh, what a question, just ask, I am glad to be an old man today, and I must know everything, and I will say everything. The old child said with a smile on his back with his little hands behind his back.

"Well, I heard that Elder Cheng is the oldest in the middle grade of the Eight Sages of Taixue, but why do you look like such a yellow-mouthed child?" Xia Yu asked curiously. "Is there some spell to keep your youth alive?"

"Oh, that's a question, haha, I thought it was. In fact, I know that most of the disciples of Tai Academy have this doubt, there is no magic to keep your youth forever, and the reason why I have become what I am now is because I am a cursed person. The old child was still smiling, but from his eyes, Xia Yu could see a hint of helplessness.

"Cursed?" Xia Yu couldn't help frowning.

"Yes, you know the three secret realms of our Tai Academy. The old boy suddenly asked.

"Well, the disciple naturally knows that the three secret realms are the Forest of Trapped Beasts, the Land of the Living Dead, and the Endless Sea. Although Xia Yu didn't know why the old child suddenly mentioned this, he still replied.

"Hehe, do you know what's in the Endless Sea?" asked the old child.

Xia Yu shook his head: "I don't know, among the three secret realms, only the Endless Sea is the most mysterious, as a disciple of the Tai Academy, but I have no information about the Endless Sea at all, and no disciple in the Tai Academy has ever entered the Endless Sea." Elder Cheng, there are vicious demon beasts in the Forest of Trapped Beasts, there are immortal people in the Land of the Living Dead, what is there in the Endless Sea?"

The old child laughed, stopped, looked at Xia Yu, and said mysteriously: "The answer is, nothing." (To be continued......)