Inside the dark cave, the fire was dim and the air was a little damp. The cave is not big, about ten zhang square, and in the middle there is a dark golden Dan furnace nearly one zhang high. The Dan furnace has three feet and two ears, and the body of the furnace is engraved with some strange textures, and the fire is burning hard.

Liu Cheng sat on a futon in front of the Dan furnace, looked down at the Qiankun bag in his hand, and said to himself: "The last bag of treasure medicine, it took me seventy years to gather you, don't let me down!"

The eternal beings in the Dan furnace opened their eyes and watched hundreds of treasure fruits and herbs fall, and said, "There have been two batches of treasure medicines thrown in before and after, and the difference between them is nearly three days. Today is the seventh day, and the normal time required for alchemy is ten days and a half months, so I guess this should be the last batch, right?"

After that, after feeling the power in his body, he has increased by a thousand catties, and with the strength of six hundred catties in his original body, his cultivation at the moment is already equivalent to the second order of a warrior. In just seven days, his cultivation completely surpassed that of Li Zheng and the others, and I have to say that the "Mixed Yuan Wuji Sutra" is indeed a supreme heart method.

However, if he only had this strength, he would still not be able to take Liu Cheng's move, and he would not be able to escape.

Of course, if he can enter the state of "madness" like he did ten days ago, it will definitely not be a problem to escape. However, once he falls into the "madness," he will completely lose consciousness and will not be able to control himself at all, so how can he leave easily? Not to mention that he will not be able to enter the state of "madness" casually.

"It's been seven days, it's been seven whole days, what should I do to step into the realm of 'boiling bones'? Is it only by cultivating 'sacrificing blood' and 'refining muscles' to the realm of perfection that I can enter the realm of 'boiling bones'?" thought to himself.

Time waits for no one. If before Liu Cheng opened the Dan furnace, he still hadn't figured out how to enter the realm of "boiling bones", then what was waiting for him would be death. Because only by entering the realm of "boiling bones" can his strength be greatly improved in a short period of time, and he can compete with Liu Cheng, and the strength of the second order of martial arts is far from enough!

"That's it!" Eternal Ku sat for a while, and finally shook his head and said: "There are many ways to improve my strength, if I can realize my internal strength, my strength should be able to improve a lot." ”

Thousands of years ago recalled the scene of the hard fight with Chen Jiu that day, and he clearly remembered that five internal energies came out from Chen Jiu's five fingers, burrowed into his body, and destroyed all the way along the meridians, and even wanted to destroy his internal organs. It was also at that moment that I truly saw the difference between a samurai and a samurai.

"Entering the body along the meridians and destroying the internal organs, is there a connection between internal strength and meridians?"

Without the dean's fat grandfather to guide him, he can only think and realize it alone!

Eternals slowly clenched his fists and closed his eyes, he carefully realized how the power was condensed the moment the fist was clenched, and how the power dissipated the moment he released the fist.

Sure enough, just clenching his fist and then letting go, he realized something in his heart.

"All the power of the human body is condensed through the meridians, and without the meridians, people cannot exert their strength. The internal strength of a samurai is actually still strength, but it is more penetrating and destructive than the power of ordinary people!"

Eternal beings have understood that internal strength is closely related to the meridians, and even knows that internal strength is played out by the meridians in the body, but he still can't beat the internal strength, and he fell into thinking again.

......

Time passed little by little, and the two thick eyebrows of the ages were wrinkled tighter and tighter, and he grasped the characteristics of internal strength, and kept repeating: "Internal strength has strong penetration and destructive power...... Internal strength has strong penetrating and destructive power......"

In the next moment, his eyes suddenly released two rays of light, he grasped an important point, and blurted out: "Could it be that internal strength is still a kind of control method?"

"Yes!" Qian Gu was very sure in his heart, and said: "Just like a strong man with a thousand catties of great strength and a samurai who also has a thousand catties of strength, it is often the strong man who is injured. ”

"It's not that the strong man didn't exert the power in his body, and it wasn't that the strong man was afraid of the samurai, but that the strong man didn't know how to gather the power in his body together. The power he hit is scattered, even if the strength of a thousand catties is hit, it can't compare to a samurai's blow, or even the power of a finger!"

"What's the matter?"

"Strength is strength, originating from the meridians and originating from qi and blood. With the meridian to transport blood, to control the force, can be big, can be small, can be quiet, can move, to send and receive freely, is for the internal strength!"

Finally, Eternals completely figured it out. Control the flow of qi and blood, and resist the power with will, so as to emit internal strength.

Thinking of this, the eternal eyebrows suddenly wrinkled together, and the words "qi and blood running" were repeated in his mind, and he faintly grasped a very important information.

Suddenly, the eyes of the eternal let out a touch of golden light, and said happily: "I think I have really touched the operation method of the 'Mixed Yuan Wuji Sutra'!"

Eternal heart is extremely excited, since he got the "Mixed Yuan Wuji Sutra", he basically does not use it for cultivation, he has always thought that if he wants to practice the four realms of "sacrificing blood", "refining tendons", "boiling bones", and "grinding skin" to perfection, he only needs to swallow the treasure medicine, and only after the four realms successfully step into the realm of "Yongquan" can he refine the aura of heaven and earth for cultivation like a normal mental method.

He even foolishly thought that the "mental method" was a method of mind control, as long as he thought about it in his heart. If it weren't for the fact that the "Mixed Yuan Wuji Sutra" was a supreme mental method that could operate on its own, I am afraid that he would have exploded and died by the time he took the "Blood Spirit Pill" that day.

Of course, this is no wonder through the ages.

Because the mental method is useless for martial artists below the realm of martial artists, only martial artists who derive true qi from their bodies need mental methods to cultivate. As for the samurai, he only needs to learn a martial art that can exert internal strength, and he is enough to deal with opponents with the same cultivation, and he can't use the mental technique, and he is not qualified.

"Strength comes from qi and blood, and controlling qi and blood is emitting power!"

At the moment, his eyes were closed, and he was silently reciting the mental method in his heart, but unlike before, this time he did not sit on the sidelines and think about it casually, but used his mind to control the operation of his qi and blood.

One breath ...... A stick of incense...... Moment......

After two moments, the eternal suddenly opened his eyes. He finally felt the movement of qi and blood in the meridians, and even more through the mental method, the qi and blood were involved. In other words, he can already exert his internal strength, although only a little bit.

He couldn't wait to try it. Without too many scruples, he directly threw a "Tiger Running Punch" into the air. Although he had tried his best to control his strength, the power of "Tiger Running Fist" was still out.

The air waves are rolling, and the fists are thundering!

Hearing the sound, Qiangu immediately secretly said "It's broken", so he hurriedly buried his body in the potion, making such a loud noise by himself would definitely alarm Liu Cheng.

Liu Cheng outside the Dan furnace was indeed shocked, but he laughed loudly: "It is rumored that some Gu Dan will have certain visions before condensing into a Dan, and Dan Yin is one of them. The Dan sound is different, or like thunder, or like the roar of a divine beast, I didn't expect these rumors to be true!"

At this moment, Liu Cheng has lost his ability to judge, he has completely believed in the subconscious, all his thoughts are to think on the good side, and he will not judge rationally at all.

After hiding for a long time, he saw that the Dan furnace had not been opened, so he meditated and concentrated and went all out to refine the potions around him. It can run the qi and blood in the body, and the speed of absorbing the medicinal power is definitely far better than before. Although I couldn't figure out how to enter the realm of "boiling bones", being able to accelerate the absorption of medicinal power proved that I could quickly improve my strength.

One-day ...... Two-day ...... Three-day ......

Time passed quietly, and in a blink of an eye it was the eighth day.

At this moment, a pool of potions had disappeared, and the fire in the furnace was about to be extinguished, and occasionally a cluster of flames oozed out, but it was only a small flame, and it was not possible to help it for eternity.

Qiangu's eyes were closed at this time, and his thick black hair was covered with a black light. The burnt parts of the body have also returned to their original state, and they are even more shiny and powerful than before!

"I couldn't fully figure out how to enter the realm of 'boiling bones', but I only took half a step. Although it is only half a step, my strength has increased to five thousand six hundred catties, which is already equivalent to the cultivation of a sixth-order warrior!" Suddenly opening his eyes, he looked inwardly at the bones in his body emitting a layer of white light, and said.

He really didn't fully understand how to step into the realm of "boiling bones", but he could be regarded as touching the threshold. After eight days of refining potions, he was already able to run his qi and blood freely. He thought of a stupid method, which was to move all the medicinal power into the bones by running qi and blood, which was regarded as taking a bath for the bones of the whole body, and this stupid method allowed him to take a crucial half-step in the realm of "boiling bones"!

"The time should be up!" Qian Gu slowly got up, his eyes were deep, he was a little nervous at the moment, he had already figured out how to escape from the Dan Furnace a few days ago.

Regardless of whether the pill was refined or not, Liu Cheng would definitely open the pill furnace. And at the moment when Liu Cheng opened the Dan furnace, Qiangu was ready to carry out a sneak attack and give him a heavy punch.

Although Liu Cheng was a famous martial artist, he did not have a strong physique, and his qi and blood were decayed. Qiangu is very confident in his current skyrocketing strength, and he believes that his sneak attack "Tiger Running Fist" will definitely hit Liu Cheng hard.

This time, the eons have already moved to kill. If he hadn't survived inexplicably, I'm afraid he would have been burned alive by the flames. No one can suffer such a great calamity without resentment, and it is like that himself.

Moreover, Liu Cheng is insidious and vicious, if he stays, he will definitely be a disaster for himself in the future. If he is not eliminated at this time, he is likely to casually spread the news that he has blood.

It is possible to forcibly improve the cultivation of a martial artist to two levels of bloodline, which can really only be described as shocking. Once the news leaks, the ages believe that endless troubles will follow!

Time passed extremely slowly, and the eternal mind was tense, secretly accumulating all the strength of the blow.