After hearing this, everyone looked at each other and didn't know how to complain for a while.

"Uh...... You're saying that sound alone can repel this tide of beasts? ”

Someone couldn't help but ask. Indeed, if it is really that simple, then why are they so tired and tired?

"Certainly not an ordinary voice......"

Xue Feifei shook her head, looked at Kong Zhe and said, "This is what I stumbled upon a few days ago, I am not an Awakened One, and I don't know much about those things of the Awakened, but I remember hearing you say that high-level Warcraft will have this suppressive effect on low-level Warcraft." And I've also discovered that the change in the composition of magic in the air can affect the state of the monster. So how did these changes come about? ”

Xue Feifei sighed and said, "I've been thinking about this since last night, and it wasn't until this morning that I finally found some way. That's – volatility! ”

"Fluctuations?"

Kong Zhe's heart moved, and when he mentioned the word fluctuation, he would always subconsciously think of his water poca.

"Yes, fluctuations, all these effects, whether they are afraid or fearful, are achieved through fluctuations and resonance. In that case, I wondered if it would be possible to simulate this kind of fluctuation in another way. One of the easiest and most possible ways to simulate fluctuations is sound. ”

"I calculated and extracted the factors that change the magic composition in the air, and I got a specific wavelength. This wavelength is then converted into sound. Theoretically, this sound can have a similar effect to the momentum of high-level Warcraft, making Warcraft feel instinctively afraid, but it ...... The road to completion was not so smooth, and when I converted the spectrum into sound, I found that it didn't work as well as it should, no, I should say, the sound was completely ineffective. At first, I thought it was my own calculation error, after all, if there is a small error in such a precise spectrum, the final result is a thousand miles wrong. But no matter how I calculated, the end result was always the same...... Until ......"

Speaking of this, Xue Feifei looked at Kong Zhe, and couldn't help but show a smile on his face: "Until before, before the fifth wave of attacks came, you said a few words to me!" ”

"I ......"

Kong Zhe was stunned, before the fifth wave, wasn't that the time when she was most confused? I did comfort her at that time. However, I don't seem to say anything special, do I?

"It's not what you say, it's the way you say it!"

Xue Feifei smiled and said: "When you spoke, you didn't speak, at first I thought I could hear telepathy, but then I thought about it, it should be the means of your awakened people, transmission and the like......"

"That's a magic sound!"

Kong Zhe nodded, and the others present immediately understood, although the end of the world had only just begun, this convenient ability quickly spread among the crowd, and the vast majority of the awakened people present could use it proficiently.

"That's what opened my mind completely, I had been confined to my mind, thinking that there must be something wrong with the spectrum, but I never thought about the energy. I used to make the sound of electricity, but if I think about it carefully, since it is the spectrum of magic power, it is naturally not applicable to the energy of the previous technological era, so I tried to change the energy to magic, and sure enough, the sound has not changed at all, but it really works......"

"Uh...... Wait a minute! ”

Kong Zhe couldn't help but interrupt her, picked up the disc, looked at it twice, and asked with a fox: "You mean that this thing uses magic power to provide energy?" Where is the source, I mean, where is the mana entered? And it looks like this thing doesn't need the Awakened to work, right? ”

Xue Feifei shook her head: "It's not that you need to input mana......"

She took the disc and pressed it a few times, opening the lid to reveal the inner workings.

Everyone looked at it curiously, and found that there were some metal pieces inside, which seemed to be carved with strange shapes, of course, these were not the most important, the most conspicuous thing in this disc was the small transparent ball in the center.

The ball was round and clear, emitting a faint white light, and it looked like a product of magic.

"Ahh My gem! ”

As soon as Tuan Tuan saw the stone, he immediately screamed, hurriedly rushed forward to grab the stone, and looked at it distressedly in his hand.

"Why has it become so small, you angelic saint, what have you done to it?"

For Tuan Tuan, few people around cared, and everyone's attention was still on the stone at this time.

"This is, the Core?"

Su Meiqin asked with some confusion. She'd seen this thing before, not to mention anything else, she had dropped it when she killed those "oss" just now.

"Yes."

Kong Zhe nodded, he recognized this thing at a glance, it was the magic core they got by killing the giant deer on the full moon night of the Sports City before.

In his impression, the magic core can only be used as a material for various sub-professions, but he didn't expect that this magic core can still be used to provide magic power!

"It's the Core. In fact, this instrument is not as complicated as everyone sees, it is just a simple sound-making device, but the original electrical circuit has been changed to a magic circuit. ”

Xue Feifei pointed to the magic core in Tuan Tuan's hand and said: "This thing is actually similar to the function of a battery, I know that you awakened people can generate magic power by themselves, but that kind of magic power is always inconvenient, but the magic power generated from this magic core is very stable and safe, even ordinary people can use it." ”

"Mana circuit?"

Kong Zhe noticed a word in her words, and immediately asked with some surprise: "You mean...... You're really ...... magic and science."

"Hmm!"

Xue Feifei nodded, and couldn't help but show a proud smile on her face: "I told you, I started this research a long time ago, but it was almost completed, until today, maybe it was the effect of pressure, I actually did it successfully." ”

Everyone present was slightly embarrassed when they heard the word pressure, they naturally understood what Xue Feifei meant, and this so-called pressure was not the gossip they had before. Many people unconsciously lowered their heads, only to feel a little fever on their faces.

Although Xue Feifei had thought resentfully before that she must be humiliated when she finished her research, but when it came to this time, she realized that she didn't care about these things. What she wants to do now is to explain the use and principle of this thing to everyone well, so as to reduce the next casualties.

"Although this thing has been made, it is not without limits......

Speaking of this, Xue Feifei hesitated slightly.

"Tell me straight, what do you need?"

Kong Zhe stepped forward and asked directly.

Xue Feifei nodded, and was no longer polite: "First of all, the magic core, this thing consumes a lot of magic core!" ”

Xue Feifei pointed to the magic core in Tuan Tuan's hand and said to Kong Zhe: "You also know how big this thing was before, and just now it was only used for less than five minutes, it has already been so much less, you can imagine how much energy it consumes...... In fact, when I designed this thing, I knew that there would be a lot of wasted energy, and if I was given time, maybe I could make an improved version, but the most lacking thing now is time. It's just a matter of making do with it. ”

Kong Zhe nodded, understanding what she meant, he looked at the people around him: "Collect all the demon cores you hit before, move quickly!" ”

The magic core will have a chance to appear in the corpses of the demon beasts above level ten, of course, the more advanced the demon beasts, the greater the probability of the demon core appearing, and in the previous waves of battles, the high-level demon beasts they killed are not less.

After Kong Zhe said this, everyone immediately took action, and now this thing is equivalent to everyone's lives, so no one will not care. Soon, everyone collected all the magic cores into a cardboard box.

The number was less than expected, Kong Zhe counted it, and there were only twenty-three. And most of them are relatively low-level magic cores, much smaller in size than the one in Tuantuan.

"No, it's still not enough, in the next battle, everyone should pay attention to collecting magic cores!"

Kong Zhe ordered. Naturally, everyone will not refuse this, and they should be.

Kong Zhe nodded, looked at Xue Feifei and asked, "That, and then, what else do you need?" ”

"Otherwise, I need metal!"

"Metal?"

"That's right! It's definitely not enough to have only one thing, and as you can see, although those monsters are afraid, they can still force attacks under the command of the oss monsters. So this stuff has to be made several more and used at the same time to enhance the effect. ”

Xue Feifei nodded: "The material of the magic circuit is a high-strength mixed compression metal, this thing is only such a small piece, but it consumes a lot of materials, and my little inventory has been used up before, so ...... I need a lot of metal! ”

"What kind of metal, can gold coins do?"

Kong Zhe thought for a while and asked, if he wanted to talk about metal, the first thing he thought of, even if there were gold and silver coins, and they had killed thousands of demonic beasts, the loot was about to pile up into a small mountain, and the most important thing was gold and silver coins.

"All kinds of metals are fine, but not your gold and silver coins!"

Xue Feifei saw everyone's puzzled looks, and immediately explained: "One of the biggest prerequisites of the magic circuit metal is that the base of it cannot contain any magic elements, and although those gold coins seem to be just ordinary gold, they are produced by demonic beasts after all, and they still contain a small amount of magic power factors. ”

"That'...... That, is this okay? ”

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