Zhou Kai handed the "Ancient Method Yoga" in his hand to Guan Nantian.

"It was a complete fluke that I was able to break through the first layer of the third stage this time, and if I didn't know one of the meditation techniques in this book, maybe I might never wake up."

Hearing Zhou Kai's words, Guan Nantian's expression became serious, he didn't expect Zhou Kai's previous breakthrough to be so dangerous. Just now he was joking with Yuan Tao that they were worried in vain, and even Yuan Tao thought that Zhou Kai's previous situation might be a normal state to break through the first layer.

Now after Zhou Kai said this, he realized that Zhou Kai really had an abnormality just now.

Next, the question arises, how can the abnormality encountered in the breakthrough of "heart refining" be solved by the meditation technique in this "Ancient Law Yoga"? There can't be so many coincidences in this world, even if Guan Nantian hasn't read this book of "Ancient Law Yoga", he already feels that there must be a connection between this book and the parchment scroll.

After Zhou Kai's explanation, Guan Nantian affirmed his opinion.

"What I said just now is just the strange thing about the surface of this book, and what you see now is the point..."Zhou Kai said as he took the "Ancient Law Yoga" from Guan Nantian's hand, and then gently pulled out the old paper that was a little burnt yellow from the mezzanine on the back cover.

Guan Nantian and Ding Xiaowei watched Zhou Kai pull out a piece of paper from the mezzanine of the book as if he was juggling, the value of this book suddenly rose to the height of "priceless" in their hearts, if it was an ordinary book, how could anyone go to great lengths to get a mezzanine? And looking at the color of this paper, it is clear that it has a long history.

"That's what you said about meditation?" Guan Nantian said as he beckoned to Yuan Tao in the distance.

"It's not! I just discovered this piece of paper. Zhou Kai shook his head and gently opened the old paper on the long table next to him.

Yuan Tao walked over and saw Guan Nantian and the three of them surrounding a densely drawn old paper, and also leaned down and asked, "What is this?" ”

Guan Nantian glanced at him and said, "I was also about to ask you this question." ”

Yuan Tao pushed the eyes on his nose and looked down for a while.

"Huh?!"

The eyes of Guan Nantian, Zhou Kai and Ding Xiaowei gathered on Yuan Tao's face at once, did he know each other?

Yuan Tao didn't pay attention to the actions of the three of them, he still carefully distinguished the symbols on the paper.

"I seem to have seen this kind of symbol somewhere..."Yuan Tao said to himself with a frown.

"You know?" The three people next to him asked almost in unison.

Yuan Tao shook his head and straightened up.

"I don't know, I just think I've seen similar symbols somewhere, but only a few, not as many as this... But I can't remember where I saw it. As he spoke, Yuan Tao lowered his head and patted his head with his hand.

Hearing Yuan Tao say this, Guan Nantian and the three of them were a little discouraged, so Guan Nantian repeated Zhou Kai's previous words to Yuan Tao.

The more Yuan Tao listened, the brighter his eyes became, since he began to study "Heart Lian", this was the first time he had found information related to "Heart Lian" from other books, no matter how he said that "Ancient Law Yoga" was also in the vernacular, and it was much easier to find something in it than a parchment roll.

Thinking of this, Yuan Tao hurriedly took over the "Ancient Method Yoga" in Zhou Kai's hand and walked quickly towards the "Heart Refining Research Room".

Looking at Yuan Tao's anxious appearance, Guan Nantian smiled and said, "Hehe! This guy might have to stay up all night again. Let's go! He doesn't have time to pay attention to you right now. After speaking, he beckoned to Zhou Kai.

After not taking a few steps, Yuan Tao suddenly shouted behind him: "Zhou Kai! Don't run! You haven't told me about your breakthrough yet! ”

Zhou Kai laughed: "I thought you forgot." ”

Several people walked into the lounge together.

In fact, Zhou Kai can't tell what the use of the "brain power" generated by the successful breakthrough is now, after all, he has just broken through the layer of "output", and the second layer of "control" has not yet begun. Moreover, "brain power" is not as traceable as "mental power", Zhou Kai now does not find anything special except that he feels that his facial features are much sharper.

"Then how sensitive are your facial features now?" Yuan Tao lowered his head and thought about it and asked.

"Let's put it this way, I used to have sensitive hearing, you all know, but there are many factors that affect the distance of hearing, and we will now take the example of an ordinary team member walking normally in a non-war-free jungle. In the past, I used to listen to the ground with 'geodetic hearing', and I could hear his footsteps from about 120 meters. And now, when I am standing, I can hear the sound coming from about two hundred meters, as for how far I can hear after using the 'geolistening technique', I haven't tried it yet..."Speaking of this, Zhou Kai shook his head with a wry smile.

"Maybe you don't believe it, if I hadn't stuffed this...... I can hear your heartbeat from five meters away. Zhou Kai said as he took out two small paper balls from his ears.

These two paper balls were found in the car by Zhou Kai on the way home to get the book just now, if he didn't stuff something into his ears, Zhou Kai even doubted that he would shatter his eardrums because of the sound of a speeding car's horn.

Guan Nantian and the three of them couldn't help but gasp, and Zhou Kai saw that the three of them wanted to speak, so he hurriedly stuffed the paper ball into his ears.

Seeing Zhou Kai's embarrassed appearance, the three of them glanced at each other and couldn't help laughing.

After laughing, Guan Nantian frowned slightly: "Then in your current situation, can you still participate in the competition?" The sound of gunfire is not like the sound of talking, especially the sound of energy machine guns... Can you stand it? ”

Zhou Kai smiled bitterly and shook his head: "I don't know, if it's just an ordinary sound, but the problem is that now I can hear ultrasound and infrasound, and I can't even stop it if I stuff something in my ear." ”

This time, no one laughed anymore, and they all realized the seriousness of the problem.

Under normal circumstances, the audible sound frequency range of the human ear is 20 Hz to 20,000 Hz, that is to say, the number of vibrations of air per second can be heard by the human ear at 20 to 20,000 times, the number of vibrations per second is less than 20 times is called infrasound, and more than 20,000 times per second is called ultrasound.

Due to the low frequency of infrasound, the absorption coefficient of infrasound waves in the atmosphere is very small, so its penetrating power is extremely strong, and it can propagate to great distances with little energy attenuation. The sound wave of 7000 Hz can be blocked with a piece of paper, and the infrasonic wave of 7 hertz can not be blocked by a thick wall, and the infrasound wave can penetrate more than ten meters thick reinforced concrete.

If Zhou Kai's situation continues, the tinnitus and headache and scalp explosion will still be light, and even if Zhou Kai's nerve splits at that time, Yuan Tao will not feel strange at all. In the eyes of ordinary people, the room is already relatively quiet, but for Zhou Kai, it is extremely noisy, and he has been in this environment, how can he completely rest his brain?

"I have a guess..."Yuan Tao looked at Guan Nantian and Ding Xiaowei, and finally stared at Zhou Kai and said: "Your current situation is likely to be your 'brain' at work, and your current state is likely to be the state after the 'brain' is stimulated." Because you are the first to practice 'brain power', we have no lessons from the past at all, and we can only use the previous state of 'mental power' to analyze 'brain power'. But it is precisely because of this that we used to think that 'brain power' is the same as 'mental power', and if it is not stimulated after it appears, it will not show its function.

If that's the case, how do you explain the anomaly you're experiencing now? Could it be that it is an adjunct to 'brain'? ．．． If it's really an accessory, then the problem is really troublesome! You're just breaking through, and the side effects of hearing acuity aren't very obvious, but if you keep going on like this, headaches, insomnia, emotional upset, memory loss, changes in pulse and heart rate, increased blood pressure, endocrine gland dysfunction, and so on, will follow..."

Seeing Zhou Kai silently and Guan Nantian anxious on the side, Yuan Tao continued: "What I just said is the worst situation, but according to my analysis, this situation should not occur......" Speaking of this, Yuan Tao was suddenly silent for a moment, and then said with some hesitation: "Well, to be honest, my analysis is based on the fact that 'Heart Practice' is a mature training exercise, if this exercise itself is indeed flawed..."

Guan Nantian looked at Zhou Kai, who was silent, and said eagerly: "Let's not discuss this issue first, let's talk about your guess first." ”

"My guess is that Zhou Kai's current situation is the normal state of the first layer of the third stage of 'heart refining', as long as he breaks through the second layer of 'control', he should be able to converge his 'brain power' and control this state freely!" Yuan Tao hurriedly said his guess.

"You're saying that I should break through the second layer as fast as I can, and then I can eliminate the current state?" Zhou Kai looked up at Yuan Tao and asked.

"Yes! If there is no flaw in the 'heart refinement' itself, this should be the only explanation. Yuan Tao nodded heavily.

"That's it! Don't say anything now, Zhou Kai, now your task is to break through the second layer as soon as possible! Yuan Tao immediately asked someone to assemble a high-strength soundproof room, using the best materials, and the soundproofing strength was tripled on the original basis. Guan Nantian made a decisive decision, regardless of whether the "Heart Refining" was flawed or not, at least this was the only way they could think of now.