After continuing like this for three or four minutes, Shu Yue felt that the air flow she absorbed was close to the limit of her load, but she still did not stop, and after another two minutes, her skin began to rise slightly, and there was almost no black in her pupils, so she withdrew her right hand, put on the brim of her hat, and sat cross-legged on the ground.

The severe pain spread throughout the body like a tide, Shu Yueqiang gritted his teeth, his mind was highly concentrated, and he mobilized all the vitality in his body, leading the air flow to converge towards the dantian.

It is said that it is an air flow, in fact, it is more appropriate to call it "Necromantic Qi", this is the name Shu Yue came up with herself, she doesn't know if this is the residual spiritual energy in the body of the demon beast, or the Yin Qi derived after death, or both, the only thing she can be sure of is that absorbing and refining these air currents can make her ability quickly improve not only physical attributes such as strength, speed, and reaction, but also vitality.

Two months earlier, in a frontal battle with a half-werewolf, she had suffered a very serious injury, and her chest cavity had been almost completely pierced, although it did not hurt the vital point, but with the situation at the time and her position in the camp, no one would save her, not a single one.

She thought that she would really die and follow in the footsteps of those close companions, but at this time, her hand was on the corpse of a comrade-in-arms, because of the unbearable pain, she subconsciously clenched the other party's calf, and as a result, the remaining vitality in the other party's body began to rush into her body.

At that time, she was like a drowning person who grasped the life-saving straw, and began to struggle to survive from instinct, she concentrated and began to absorb the vitality in the corpse, after the first body was sucked, the bleeding speed of her wound began to slow down, and when the third body was finished, the blood stopped completely, and when the seventh body or the eighth body came, the wound actually began to heal, she crawled from one corpse to another, and the dozen or so comrades who fell nearby were all sucked dry by her, and the blood hole in her chest disappeared, and the whole person was not only weak, but still full of strength.

However, what happened next was not pleasant, she didn't know how to refine the extra dozen strands of vitality out of thin air, so she could only let it run around, just like a dozen villains fighting in the body, blood vessels, meridians, muscles, bones, internal organs, every place began to spasm, accompanied by bone-cutting pain.

The pain lasted for an unknown amount of time, and finally she couldn't hold it anymore and passed out, and when she woke up, the battle was over, and the pain was much less, at least as far as she could bear.

With such a special ability, she was originally quite happy, at least at the critical moment to be able to save her life, but when she returned to the camp, she found that the degree of "corpse" of her body had become much more serious, with smaller pupils, whiter complexion, and stronger odors. After seven days, the more than a dozen strands of vitality were automatically absorbed by her, and the degree of corpse in the body became more and more serious, and even lost a lot of weight because of this, and the skin was pure white as dry bones, at first glance, it really looked like a zombie.

She was very worried that the "corpse" would continue to worsen, so she never used this ability again, even if she was scratched by a half-werewolf calf, she never used the other party's corpse to heal, she was afraid that one day, she would really turn into a skeleton wearing human skin.

Especially after seeing Liu Zhi, she always had a little expectation in her heart, hoping that she could change back to her original appearance, just like when she first met, standing in front of him with a smile.

And now, she quietly put away this expectation, planning to help Liu Zhicheng dream at the cost of becoming a ghost.

Although, she didn't know what Liu Nao's dream was.

The only thing she knows in her heart is that with this ability, she will grow very fast, and she will definitely be able to become one of Liu Zhi's arms.

The necromantic qi in the demon beast's body is very thick, she can only absorb one-third at most, and the entire refining process is quite painful, just like a knife scraping in her body, but she endured it, she needs more powerful strength, and she needs to grow up in the shortest possible time.

Now that she has taken this step, she has no intention of turning back.

When the sky was about to darken, the necromantic qi in her body had been refined by almost a quarter, and her own vitality could finally suppress the necromantic qi, although there were still convulsions-like pain from time to time, but at least the skin was no longer swollen and could move normally.

After getting up and waiting for another four or five minutes, the handsome guy with ice rushed over, but he didn't work immediately, but frowned slightly, and glanced at Shu Yue in some surprise, feeling that this strange woman's cultivation was getting stronger day by day, and the improvement speed was staggering.

Shu Yue was afraid that he would see something unusual, so she deliberately lowered the brim of her hat a few points and buried her head, so as not to see his smaller and smaller pupils.

Although the man with ice was strange in his heart, he was not a talkative person, and when he finished his work, he turned around and left, Shu Yue closed the door of the ice warehouse, went to the cafeteria to get dinner, and went back to the dormitory to continue his cultivation.

The remaining necromantic qi in her body had to take more than half a night to refine and clean, leaving little time for her to eat and sleep, so she naturally had to cherish it doubly.

…………

"Okay, okay, Mr. Wei, I'm not here to hear you talk about professional data, I just want to know, can this thing afford a high-precision industrial machine tool?"

Liu Zhi interrupted Wei Zhi, who was foaming at the mouth, and looked at the giant generator in front of him, which was more than five meters long, about one meter in height and width, and three parts like bicycle pedals were installed on the left and right sides.

Wei Zhiyan smiled and put away his excitement, nodded and said: "There should be no problem in terms of power, but the industrial machine tool is a more complex and larger project, although we are working on this generator at the same time, the machine tool has not been left behind, but it will take at least two to three months to wait until it is really completed and put into production." ”

Two or three months, it happened to be winter...... Liu Zhi thought for a while and said: "After the industrial machine is made, can it make a relatively powerful thermal weapon?" ”

"A more powerful weapon is fine, but a thermal weapon is estimated to be hopeless in three to five years." The deputy director of the Scientific Research Bureau, Luo Shida, a doctor of chemistry, answered this time.

"Well, why?" Yanagi asked.

Luo Shida sighed lightly: "Chief, I have experimented more than a thousand times, and in this world, the three substances of charcoal, sulfur, and saltpeter, no matter how they are combined, cannot make gunpowder. And without gunpowder, even if a firearm is made, it can't produce much force with a firing needle alone, and bullets can't pose any threat to ordinary people, let alone the Awakened. ”

Liu Zhi was stunned for a moment, and immediately realized the seriousness of the matter, he really hadn't seen anyone use thermal weapons in his previous life, whether it was high-powered or small-powered, no, Zheng Zhongli had people study it, but he hadn't heard of any progress, he always thought that it was because the technology couldn't keep up, or because of the problems of accuracy, material, etc., the thermal weapons created were limited, and they were not as powerful as the Awakened to use bows and crossbows.

Now, it doesn't seem that simple.

If this world really can't make gunpowder, then it is basically impossible to defeat the Rock Clan through technological recovery, and how to fight the war that determines the survival of mankind in six years!?

PS: Today's first chapter.