It is not easy to feel the vibration of ultrasound, the vibration frequency is higher than 20,000 hertz of the sound wave, more than the upper limit of human hearing, can penetrate the solid ultrasound, the vibration frequency is bound to be higher, medical ultrasonic detection equipment, the vibration frequency is not in "10,000 hertz" as a unit, but "megahertz". Pen, fun, pavilion www. biquge。 info

The "picture" provided by ultrasound is very rough, just like his vibration release, there is no way to see the detailed places, only a general shape, but the rough picture also has the benefit of roughness, just like the squares of the mosaic, the dynamic capture of objects is very sensitive, the larger the square of the mosaic, the easier it is to see when the color changes, and the ultrasound of the strengthening agent provides excellent dynamic "vision", which is beneficial to the battle.

Chen Zhen didn't know what the vibration frequency was imparted by the enhancement potion, and he couldn't hear it, but there was an advantage, that is, he could see the range of action of the ultrasound and know where the vibration was.

After a moment of habituation, he sat down cross-legged and took a deep breath to focus on the area where the ultrasound was working.

Devoted to it, highly concentrated, and with only one thing in mind, that is, to feel the vibration of the ultrasound, but in doing so, you can not feel the passage of time, but it is successful, but at the moment when the "picture" provided by the ultrasound changes, the effect of the drug has passed.

The sudden disappearance of the picture woke Chen Zhen up, but he immediately returned to a state of calm, to feel the changes at the end, the moment before the memory screen disappeared.

The stomach screamed, and the use of the strengthening potion increased his vibration range a lot, and also caused greater consumption, after the effect of the medicine passed, the increased vibration was gone, but the original external vibration was still there, and he didn't dare to take it back, and the consumption continued.

It's just that I have a little bit of a feeling for ultrasound, and I'm afraid it will take a lot of time to change the frequency of the external vibration, and if I continue to sit here, I'm afraid I'll really faint with hunger, just like next to Liang Cheng.

Chen Zhen stood up and dug out of the stone hole to look for food, and before he had gone far stepped on the soft sand, he knew that the cliff was next to the beach.

Mutant creatures can't eat it, otherwise they will get madness, plants can't absorb it, they can't provide heat, and it is already very difficult to find food, and it is even more difficult for Chen Zhen, who can't see or hear, and is only a few meters away from "seeing".

He also had to be very careful, as there were likely mutated creatures on the beach as well.

After walking a little further, the sand became very wet, and even soaked the shoes, this is supposed to be the beach exposed after low tide, which is the only good news today, because there is always some aquatic life left on the beach after low tide.

Such as crabs, turtles, and shellfish.

Chen Zhen ran along the seashore, the huge black hemisphere was too conspicuous, and the shore creatures ran when they saw the darkness, and there was no way to catch them if they didn't run.

After running for a while, on a large rock on the beach, he felt tens of thousands of things crawling.

It's a sea cockroach, a creature that is very similar to tide insects, but the legs are longer, and it looks more disgusting, and the big rocks climb I don't know how many, very dense, and on the stones, there is a big one.

A mutant sea cockroach poked its head out of the big rock and looked at the darkness below, it didn't know what it was, but decided to try it, so it pounced.

Fortunately, Chen Zhen was not at the center of the darkness, afraid that the sea cockroach would crawl on his body, he retreated to the edge of the darkness, and the mutated sea cockroach pounced down and fell directly in front of him, and a few minutes later, it fell to the ground with its belly facing the sky, and the dense ordinary sea cockroach crawled onto its body and began to eat.

After running around for a while, Chen Zhen picked up some single-ringed thorn beetles, geoducks, razor clams, and caught a lot of small crabs, carried them around in his big robe, and returned to the entrance of the cave.

These things can be eaten raw, but the human stomach has changed in the process of evolution, raw food is not easy to digest, he climbed back to the cliff, picked up some wood to make a fire, and sat while recalling the feeling of high-frequency vibrations while roasting food.

Flames can't emit light in the dark, but they can generate heat, and the flames are still affected by the breeze - the vibrations emitted have a unique vibrational frequency, and they don't automatically sync with any matter, otherwise they wouldn't feel that substance, and the heat wave above the flames provided Chen Zhen with inspiration.

The purpose of the fourth-generation strengthening potion is to actively change the vibration frequency and form a resonance with a certain substance, which is equivalent to a microwave oven, but not the entire dark space is synchronized, otherwise Chen Zhen himself will be heated, the microwave oven is just a process, and the ultimate goal is to refine the control of vibration, and control a certain area in the darkness alone, so that it is an effective means of attack.

The hot air rush is upward, so the normal form of the flame is always upward, and above it is a "hot column", which is invisible but can be felt, because the darkness inside the hot column has changed, and the external vibration is affected by the outside world, changing the vibration frequency.

The inspiration was ethereal, difficult to capture, and he couldn't imagine any use, and he couldn't use the heat column to find out where the shadow was, but it was much better to change the vibrational frequency by external force than to try to control it without a clue.

Absentmindedly eating grilled seafood, while filtering these new ideas, too many ideas are not a good thing, the current problem to be solved is the black shadow, if the new ideas have nothing to do with this matter, just put it aside, solving the problem in front of you is the most important thing.

Because people can't sleep without sleeping, otherwise even their ability to think will be affected, and when they sleep, they won't be able to go out in the dark, which is worse than starving.

After eating all the things he had picked up, Chen Zhen returned to the cave and continued to think, he didn't know what time it was, a little sleepiness was only related to his stomach being full, if he wanted to hold on, he could hold on for a long time.

Chen Zhen began to settle down again, and left the ubiquitous thing of time behind.

…………

…………

The bonfire was bright and dazzling, in the woods, Fan Hu was building a wooden frame, two wounded members of the kitten hunter group were lying down to rest, Yang Yan was getting food, and Xia Fan, who was tied to the tree, looked at him with angry eyes.

"Let go of me." Xia Fan was tied very uncomfortably, and her wings were also wrapped in rattan, and she couldn't open them at all.

"Let go of you, will you go back to him?" Yang Yan didn't even bother to turn his head, and asked with half-closed eyes.

"His life is mine, even if he wants to die, he can only die at my hands, of course I have to go back, even if he has his last breath left, I will take out his heart before he dies." Xia Fan said in a deep voice.

"I see." Yang Yan stirred the fire with a branch and said: "You are a tsundere, there must have been countless opportunities to kill him in the past, but you gave up, even if he still has one breath left, you will find a reason to save him first and save him alive." ”

"That's none of your business, you let me go." Xia Fan struggled for a moment, her determination to kill Chen Zhen had not changed, but she naturally had her reasons for not killing Chen Zhen when she had the opportunity, this was a matter between them.

"He won't let you go to him, there must be a reason for him, just like he killed your father, there must be a reason for him to do it, you look very familiar with him, you should know him better than we do, that guy won't be soft when he kills people, but I've never seen him kill people inexplicably." Before the incident, Yang Yan and Chen Zhen didn't get along for a long time, but in Xucheng, they stayed together almost every day and already had a deeper understanding of Chen Zhen.

"By the time you see it, it's too late." Xia Fan's voice became a little muffled.

Yang Yan shrugged his shoulders and said: "It's not convincing, with my trust in him now, even if what you said really happens, I will think that he has his reasons, of course, he killed your father, you have to avenge your father, this thing makes sense, I will not persuade you to stop you, I tied you here not for fear that you would kill him, I just didn't want you to go back to him, anyway, he said to let you go to Yangcheng to wait for him, and when you get out of danger, you will definitely go to Yangcheng to find you, just wait." ”

"With his speed, if he had escaped, he would have caught up with us a long time ago, and he hasn't come yet, which already says a lot." Xia Fan looked to the east.

"But even he can't get rid of the danger, even if you go, what's the use?" Yang Yan turned his head to look at Xia Fan and sneered.

But looking back at the fire, he frowned again, which was what worried him the most.

According to what he saw at the scene, Yang Yan guessed that the black shadow was hidden in the darkness of Chen Zhen, so Chen Zhen did not take back the darkness when he left, because he did not dare to take it back, he didn't know that the darkness and Chen Zhen had a conversation in an instant, he only knew that the red light in Chen Zhen's eyes was extremely strong, and it had little to do with the black shadow, and he heard from Chen Zhen that the black shadow could control the mutant rats, and all kinds of things were connected, and Chen Zhen's situation was very not optimistic.

Fan Hu set up a shelf, walked over and silently picked up the corpse.

The cremation was carried out after eating, Fan Hu wrapped the ashes and put them in his arms, and Yang Yan untied the rattan that fastened Xia Fan to the tree and carried her on his back.

The group continued to march towards Yangcheng.

…………

…………

Sleepy, it should be late at night, Chen Zhen still didn't have a clue, but firmly remembered the feeling of ultrasound changes before the effect of the medicine disappeared.

He was still sitting cross-legged on the ground, thinking.

It is a matter of brain power to use his brain, and it is a matter of physical strength to find food, and his brain is already tired, and he has eaten another meal just now, and his sleepiness is getting stronger and stronger, he sighed, stood up, and prepared to take a dip in the sea.

Water?

Chen Zhen suddenly froze.

If the outgoing vibrations are subject to change due to the influence of invisible matter, then why control it yourself? If you want to control, there will be time in the future, and solving the problem at hand is the most important thing.

Water is different from flame, flame is something that cannot be touched, water can be touched, but water and fire have one thing in common, that is, there is no specific shape.

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