The blood had been taken, and the casting of the bronze objects soon began.

They didn't know how long the blood in the bamboo tube would last, and they couldn't guarantee whether the beast's blood would deteriorate, so all the preparations were naturally as fast as possible.

In the casting room, unrelated people were forcibly kicked out, even if they wanted to see it again, they could only wait outside, except for the two leaders and the three big leaders, the other small leaders could only circle outside, stretching their necks and not being able to see a shadow.

Bronze casting is still the clay casting method used by slave owners, in which molten alloy is poured into the mold cavity.

Most of the molds are made of clay, but this time the casting is different from the previous ones, and everyone is more and more cautious about each process.

This is an attempt to use the blood of the blue-faced fangs, it is an important turning point, if successful, the bronze tools used by the tribe will rise to a level in the future, and the use of stone tools will be gradually replaced, after all, if the new bronze tools are hard enough, sharp enough, and even as Gongjiaheng said, if they can break through the solid stone, many people will choose bronze tools.

The clay of the casting mould is the mud after long-term drying and repeated beating, so that it is highly evenly cooked, and the bronze ware made before has also proved their usefulness, not too wet and there is no gas phenomenon, and the bronze ware made is acceptable.

This time, however, the mud used is more stringent in the process of sifting, rinsing, rinsing, and blending.

The process of ore smelting is still the same as before, but when it goes through black turbidity, yellow and white gas, green and white gas, and finally only green gas is left, the copper alloy is completely melted, and according to the previous process, it can be melted and cast, but this time is different. Before being forged, the blood of the green-faced fangs is added.

At the beginning, the words that Shao Xuan saw on the mountain wall of Gongjia Valley were written when to add beast blood, but he did not explain the details in detail, and Shao Xuan could only try it with his own guess.

Remove the needle from the "syringe" and connect the needle to the bamboo tube. There was green blood coming out and making a snorting sound.

"That's it...... Is it just dripping?" the craftsman next to him stammered nervously.

What else could it be?

Shao Xuan couldn't find someone from the Gongjia family to come over and ask now, so he could only try to pour in.

Shao Xuan erected the bamboo tube, allowing the beast's blood in the tube to drip out of the small hole where the needle was connected and fall into the molten copper alloy liquid.

With the sneering green blood, the hearts of the people staring at this side were as if they were being roasted on a hot stone slab.

Nervous, scorching. He was stiff and didn't dare to move, nor did he dare to make a sound, for fear of interfering with the movements over there.

The blood dripping into the copper alloy liquid, the sneering sound stopped abruptly, and it did not evaporate as Shao Xuan and the others thought, but spread out in the alloy liquid like a smudge.

Poof――

As the blood gradually dripped down, cyan flames suddenly emerged from the molten alloy. The flame body is not high. The liquid level of the molten alloy is only one layer less than the height of the little finger.

The fire is still there. The alloy is still melting.

The blood in the bamboo tube dripped more and more, and the liquid surface of the molten alloy was all covered with a layer of cyan flames, and at the same time, the molten alloy inside was tumbling, but no bubbles came out, only the cyan flames that kept burning.

The color of the molten alloy is changing. It became darker, no longer golden, and the color became even as the molten alloy tumbled.

Wait for the beast blood to run out, and no beast blood will drip in. When the cyan flame in the alloy melt gradually disappears, the mold is poured into the mold.

Outside the casting room, Mai and other small leaders, as well as Tuo and Xiang Chen, who knew the secrets of the gold artifact, were waiting outside, wanting to listen to the voices inside to satisfy their curiosity, but so far, there was nothing they wanted to know about inside.

The two leaders are too calm, even if it is an exclamation, it is better than being silent all the time.

After a long time.

There was a sound of forging in the room.

Forging, engraving, annealing, grinding......

Although everyone was very nervous, everything was carried out in an orderly manner, and no one asked or said much except for the task. The two leaders were also reduced to the background, just staring nervously at the wide copper knife that had been roughly formed over there.

Now the knife still looks a little rough and doesn't have much beauty, but in the eyes of the people in the room, it is simply a peerless beauty.

It is different from the previous bronze objects, even if it has not been completed, but it feels like another realm, another level of existence!

......

Outside the sky, the sun hovers from high to slanted.

At dusk, the afterglow of the setting sun was scattered everywhere, and the shadows of the people waiting outside were stretched out.

Inside the house, Shao Xuan took the freshly cast copper knife and wiped the blade with animal skin.

The biggest difference between this knife and the previous bronze wares, and the most conspicuous place, lies in its color.

It is not golden yellow, nor is it the silvery-white, silver-gray or even reddish color of other heterochromatic bronzes, but cyan!

The domineering wide blade, dark blue color, restrained, but ferocious.

Shao Xuan stared at the pupils of the blade, reflecting the cold light reflected from the blade. Throwing away the wiped hide, his fingers wandered along the edge of the blade, then flicked slightly.

It was like the whistling of the wind, with the tremor of the blade vibrating. It felt like something was charging through the blood.

Cyan bronze!

Most of the bronze ware will turn cyan after rusting, but now, this freshly cast copper knife is a restrained and deep dark cyan!

Did it work?

It's a question that everyone wants to know.

The leaders and big bosses didn't know anything, and only Shao Xuan and the craftsmen, who were in charge of beating and engraving just now, knew that this knife was far stronger than other bronze objects!

Shao Xuan's gaze moved away from the knife and looked at Ao He Zhengluo, who was standing next to him and had been silent.

It's not that the two leaders are not in a hurry, but they are too nervous and too expectant, so much so that they forget to react. Now, seeing Shao Xuan looking over, Ao hurriedly took out a fist-sized stone prepared and threw it up. This is one of the test stones placed in the stone room, this piece belongs to the medium stone level, try the general copper, will use the medium lower stone, after all, the sharpness and hardness of ordinary copper are limited, can not be forced.

Because he was too nervous, Ao threw the stone very stiffly. But at this time, no one cared about Ao throwing the stone, staring at the stone that was thrown, and then looking at the knife in Shao Xuan's hand, his eyes quickly swept back and forth, for fear of missing any detail, and at that moment, he forgot to breathe.

Shao Xuan held the bronze big knife with both hands, took a step forward, raised it, and then slashed it towards the stone thrown into the air!

Bang!

The blade slashed hard at the stone, and the fist-sized stone broke in half in response, crisply, neatly, and smoothly!

And on the blade, there is not a trace of curl.

Whether it's sharpness or hardness, it's really much more powerful than the previous bronze! )