The sun finally set.

Under the blue sky light, the mountains are secluded, the birds and animals are frightened, and the shadows are heavy.

The warriors of the five guada tribes have lost all their courage. They huddle at the entrance of the cave and look at the increasingly dark world around them in horror. For those of them who have been hiding in the cave since they were born, it's really despairing.

Wu Yuan is as if nothing had happened. He set up two campfires around him, and built a stone wall half a person high. At the moment, he was setting up several straight tree trunks with thick bowls on the fire to bake.

Every time I bake it, I take it out and rub it on the stone. Yes, it's rubbing.

Before, Zhang Yang was limited by the conditions and couldn't rub the wooden spear. Wu Yuan himself was also affected by the memory of the soul in his body.

But now, after recovering, he naturally knows how to prepare weapons for himself.

Even if the weapon is still crude, it is enough.

This is destined to be a killing night, and only through warm blood can he prove that he is still the most powerful soldier!

No matter when, where, what.

Zhang Yang is sleeping soundly. His breath is gentle and his face is quiet. It's like the breeze at night. It's very pleasant.

When the last light of the sky darkened and the darkness around began to be illuminated by the leaping fire, a roar of beasts came from the distant forest, and then some other strange sounds.

Soon,

it seems that there are countless night birds flying overhead, rolling up gusts of wind and smell. At one moment, even the stars in the night sky seem to be scared away, and the shadow of death is like a sharp razor hovering in the throat.

But the flames of the two campfires made the terrible unknown shadow linger and finally leave.

In the whole process, the warriors of the five guada tribes have been paralyzed.

Wu Yuan just looked up and stopped caring.

As for Zhang Yang, he has been sleeping quietly.

Then came a quieter night, when the roar of the wild animals and all kinds of strange sounds disappeared.

It was only half an hour later that the sound of rustling came. By the light of the fire, we could see the eyes like lanterns in the dark.

They are very quiet, constantly swimming, seems to be quite afraid of the fire.

I don't know when they retreat and disappear.

The magic effect of the fire finally made the warriors of the five guada tribes a little braver.

But Wu Yuan still baked his five wooden spears and a special long gun, 20 cm thick and nearly four meters long, by the campfire.

Out of the soldier's intuition and some memories in his body, he knew that the night in the world would be more terrible than he imagined. Although he didn't know what was in the night, the huge stone blocking the entrance of the cave would not lie. The claw marks on it were the evidence.

Night, deeper.

Wu Yuan stopped rubbing wood spears. He put several weapons within his reach. He also learned to make them public. His breath was steady and his expression was safe. He seemed to have slept in the past.

I don't know when, the night wind gradually big up, the flame was blowing whine, Mars dance, like a demon born.

At last, the wood in a campfire was burnt out, and the flame was much smaller. Five warriors of guada tribe summoned up the courage to add firewood. But before they stood up, Wu Yuan had already leaped up like a gale. He had two wooden spears in his hand, one on one foot, and another came into his hand. He was like a shadow, and the spear was like a thunderbolt!

In a flash, only the wind, sobs, and the sound of blood gushing.

Reflected by the light of the fire, two unknown fierce beasts lie on the ground, twitching. The third fierce beast collides with Wu Yuan. The sharp claw is only a few centimeters away from breaking his chest, but the wooden spear in his hand pierces the fierce beast back and forth!

Wu Yuan pulled out the three wooden spears without expression. Without looking at the bodies of the three fierce beasts, Wu Yuan turned back and sat down, as if nothing had happened.

The fire on one side finally went out, leaving only a pile of red charcoal fire. The strong smell of blood was carried far away by the night wind, and there were many shadows in the distance.

"Wu Yuan, fight the fire!"

Zhang Yang really wakes up, and he even stretches.

Because this is the only way to quickly restore the power of the soul, fortunately, there is no fierce beast to disturb his dream.

The wood branches are thrown into the fire, even if it is basically wet wood, it does not affect the rise of the flame.

Zhang Yang stood by the fire and watched the leaping fire. He was fascinated. His soul force field was also released in silence. The 100 meter shrouded area allowed him to know everything around him like the back of his hand.

However, he did not observe and lock the fierce beasts attracted by the blood. What he observed was not the flame, but the oxygen in the air, which could make the flame burn more fiercely.

He has solved the eight mana structures of the second closed circle and the fourth closed circle of fireball magic, and he can fully realize them with the micro operation of soul force field.But before that, he still lacked one thing, a kind of material to upgrade the ordinary flame, become more violent and powerful.

Apart from oxygen, Zhang Yang can't do it, or has no cost performance. He consumes all his soul power and may not get much pure oxygen.

But if simple compressed air is used, it will be much easier.

Between the changes of mind, in places that others can't see, publicity has easily compressed the air as big as a fist, and the multiple is not high, just three times the atmospheric pressure.

Next, he wrapped the compressed air balloon in the soul force field, moved it into the flame, contracted the soul force field, and made it achieve the substantive purpose through compression.

Of course, it's not necessary to make the soul force field real, because it's too expensive to do that. Just close to that critical point. At this time, the publicized soul force field feels the burning of the flame and starts to hurt each other, that is to say, it has the ability to control the flame.

"Step one, success!"

Zhang Yang meditated in his heart and concentrated on it. While enduring the burning pain of the fire, he began to construct the six structures of the second closed circle.

This kind of structure can be drawn with complex patterns on paper, or constructed with mana as an index. Similarly, as long as the soul force field reaches a certain substantive critical point, it can also be constructed.

Even, as long as the manufacturing process is precise enough, this kind of architecture can be represented by steel, which is enchanting machinery.

It can be said that this step of publicity seems simple, but it has actually opened the door to a new world.

In the twinkling of an eye, six structures are not complicated, but they are absolutely not simple. At this moment, Zhang Yang feels that there is a huge whirlpool in the air, which is engulfing his soul power crazily, until he engulfs about one sixth of his soul power.

Up to now, the second closed circle has been completely constructed successfully, and driven by the soul power, it has formed a mysterious curve force field.

It was also at this moment that Zhang Yang released the control of the compressed air balloon, but the compressed air was not lost, but was directly absorbed by the curve force field.

At the same time, a large number of flames are also drawn into the curve force field.

From the perspective of Wu Yuan and others, it is just like the fire seedling which was several meters high was swallowed by some kind of monster out of thin air. It was dark all around for a moment, and it was only a second later that new flames sprang up.

And at this time, a very magical scene appeared, Zhang Yang's hand suddenly appeared a fist size fireball, dribbling around.

Zhang Yang showed a mysterious smile on his face. Then, with a raise of his hand, the fireball was like a meteor, whizzing out nearly 100 meters, and directly hit a huge fierce animal more than three meters high.

"Blast!"

The moment Zhang Yang utters this syllable, he also takes back the control of the soul force field over the fireball, and by the way changes a certain structure.

The next moment, such as thunder came into the world, a huge flame exploded, forming a flame mushroom more than ten meters in size.

The neighborhood was lit up like day, and the fierce beast was killed on the spot, with a strong aroma.

"Well, there's supper!"

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