Seventy-two times the super cultivation speed, such a thing is simply not similar to the real world of the outside earth, if the "Yang Yan Clan", the masters of the various sects of the inner family exercises, hear about it, it is estimated that all the people will go crazy because of it.

Even though Su Xinyuan usually had a purple gold ball in the lower abdomen dantian that was like a "perpetual motion machine", which automatically absorbed the aura of heaven and earth from the outer space for him all the time, he was still extremely excited after realizing that the "Breathing Technique" of the second layer of the "Ancient Taiji Divine Skill" actually had such a terrifying cultivation speed.

Of course, the so-called seventy-two times the speed can only be achieved in the snowy secret realm, and if you leave here, the speed will be reduced by half, only thirty-six times.

It was precisely because of this that Su Xinyuan cherished the current cultivation time extraordinarily. You know, one hour of cultivation now is equivalent to seventy-two hours in normal times, that is, three days.

One hour has the effect of three days of cultivation in normal times, where can I find such a good thing?

Now, he can't wait to spend all the next seven days on meditation and practice, with such a terrifying cultivation speed, although it is only a short seven days, but multiplied by seventy-two times, it is equivalent to more than five hundred days of ordinary cultivation, that is, nearly a year and a half of cultivation effect.

Of course, this kind of thinking is also unrealistic, after all, if he really disappears for seven days, I am afraid that the four daughters of Mu Ningxue and the more than two hundred immortal clansmen will all be in a hurry, at least before they find him.

However, although he can't practice for seven days in a row, tonight is definitely not to be missed, after this time the cultivation is over, Su Xinyuan plans to go back to say hello to Mu Ningxue and the second elder of the immortal and immortal clan, and tell them his idea of using these few days to cultivate, and then return here to cultivate, after all, after seven days, he will enter the "Kalachakra Palace", and no one can predict whether there will be any unexpected changes, such as those evil guys in the Black Ji Society being alarmed, I also took the opportunity to blend in and so on.

Therefore, Su Xinyuan urgently needs to improve his strength as much as possible before this.

With this thought, he quickly put the distracting thoughts in his heart behind and began to cultivate with all his concentration.

Although the purple gold ball suspended in front of him at a low altitude of meters always maintained a uniform speed of ninety-nine revolutions per minute, the longer this rotation continued, the stronger the inertial acceleration of the pulling force generated from the purple gold ball for those heaven and earth auras that were free from the outside space.

Therefore, gradually, the speed of the dissociating heaven and earth aura in the outside space was absorbed and gathered by the purple gold ball, and it was actually unconsciously increasing......

Time passed slowly, and Su Xinyuan's entire mind sank into this fruitful cultivation state, and he was ignorant of everything in the outside world, but in this underground ice and snow cave base with an area of several kilometers, the heaven and earth aura that was free in the space, because of the continuous rotation of the purple gold ball, the speed of converging in front of Su Xinyuan's body was getting faster and faster.

I don't know how long it took, above this small low peak where he was meditating and practicing on his knees, a spiritual energy vortex formed by the high convergence of the spiritual energy of heaven and earth in the space was gradually formed, this spiritual energy vortex had a diameter of a few feet, and it was oval, and it maintained a synchronous rotation speed with the purple gold ball hanging in front of Su Xinyuan below, and hung down a small tail of spiritual energy.

This little aura tail just landed above the sphere of the purple gold ball, and after the aura of heaven and earth in the entire underground cave space entered the aura vortex on the low peak, it was through this little tail of aura that it was poured into the sphere of the purple gold ball that rotated at a uniform speed, and was quickly condensed into a purple-gold "chaotic true qi" imprinted with the breath of Su Xinyuan's "ancient Taiji exercises".

As long as Su Xinyuan finished this cultivation and re-inhaled the purple gold ball hanging in front of him into his body and sank into the dantian in his lower abdomen, at that time, he would be able to find out how much the purple-gold Tai Chi "Chaos True Qi" contained in the purple-gold Tai Chi "Chaos True Qi" contained in the sphere of the "Ancient Tai Chi Divine Skill" had increased after this cultivation.

And this increase in volume directly represents the improvement of Su Xinyuan's strength......

Of course, all of this is a later story, and the benefits of it cannot be realized by Su Xinyuan at the moment, and he must wait until he finishes this cultivation to truly perceive it.

But at this time, just when his entire mind was sinking into cultivation, the immortal and undead clansmen in this underground cave base were all shocked.

After all, the characteristics of their race doomed them to be extremely sensitive to the situation of the heaven and earth aura in the space, and at this moment, the free heaven and earth aura in the entire underground cave space all converged in one direction, and also formed a vortex of aura that could be seen by the naked eye there, with a diameter of up to a zhang, this situation, as long as you are not blind, you can see it clearly.

A kilometer away, in the Xuan River area, nearly two hundred people of the Immortal Immortal Clan were alarmed, and looked towards the low peak where Su Xinyuan was cultivating, staring at the aura vortex formed above the low peak, all of them with shocked faces.

The second elder and the seven warriors of the immortal and undead clan were also in the crowd, and the former quickly learned some information from the others, and learned that Su Xinyuan was walking alone in that direction not long ago.

After a short period of silence, the Second Elder gave a few instructions to the seven warriors of the Immortal Immortal Clan, telling them to disperse the distant clansmen, and then walked alone in the direction of the low peak where the aura vortex appeared.

After a short time, the second elder came to the back of the low peak, and he was more than ten meters away from Su Xinyuan's knees.

Looking up at the aura vortex that appeared at the top of Su Xinyuan's top of more than ten meters, the look of horror on the second elder's face not only did not subside, but became even more intense.

A few minutes later, the second elder took his eyes away from the aura vortex in mid-air, and landed on Su Xinyuan, who was cultivating with his eyes crossed on the ice field on the ground, and stared at it for more than a minute, before he sighed faintly, as if he had made a decision, and finally sat down on his knees more than ten meters away, but he did not close his eyes, but kept staring at Su Xinyuan, as if he was waiting for him to finish his cultivation, and then wake up......

……

I don't know how long it has been, Su Xinyuan, who has been immersed in cultivation, suddenly remembered the concept of time, and a touch of worry suddenly appeared in his heart, in case the cultivation time this time is too long, if several days have passed, I am afraid that Mu Ningxue and those immortal and immortal clansmen will be worried.

This thought floated, and he immediately withdrew his mind from his body, and controlled the purple gold ball suspended at a height of meters in front of him, slowly retreating towards his mouth.

This process also lasted for a few minutes, but after the purple gold ball finally sank into the dantian of his lower abdomen, Su Xinyuan didn't bother to carefully check the results of this cultivation, that is, how much the purple-gold "Chaos True Qi" condensed by the absorbed heaven and earth aura contained in the purple gold ball had increased, and he was worried that too much time had passed, so he directly opened his eyes.

In the next moment, before he raised his hand to look at his watch, a familiar voice suddenly came from not far away: "Mr. Su, you have finally woken up, hehe, congratulations, this time of cultivation, I'm afraid that the harvest is not small, right?" ”

Hearing this voice, Su Xinyuan subconsciously turned his head to look, and happened to see that on the snow more than ten meters away, the second elder of the immortal and undead clan was originally sitting there cross-legged, and at this moment he was slowly getting up with a smile on his face.

It turned out that the Second Elder had already been alarmed, and they had been sitting next to him to protect the Fa!

With these thoughts in his mind, Su Xinyuan suddenly became a little embarrassed, smiled embarrassedly and quickly got up, and arched his hand politely: "I didn't expect to alarm the second elder, unintentional mistake, please don't blame...... Besides, I shouldn't have been cultivating for too long this time, right? I was so immersed in it that I forgot the time for a while, and I was really ashamed. ”

"It's okay!"

Seeing Su Xinyuan's blame, the second elder walked slowly, chuckled and waved his hand: "As long as the seven-day period of the Kalachakra Palace has not passed, although Su Xinyuan has cultivated, it is still very safe in this underground cave base, besides, your cultivation this time has only taken a whole night, not very long, but...... It's not a small movement. ”

Speaking of this, the Second Elder smiled again, turned his head to look at the space around the low peak, and quipped: "In one night, you have absorbed the heaven and earth aura in this underground space with an area of a few miles, Mr. Su, the speed of your cultivation is simply shocking, hehe...... But fortunately, the whole snowy secret realm is big enough, and the aura is also sufficient, although this cave base is underground, it is also connected with the outside world, and the aura of heaven and earth that you took away last night can come from the outside world in about half a day and recover ......"

"That's fine, otherwise I'll be really ashamed and take away the aura of heaven and earth here, I'm afraid it will affect your cultivation......"

Speaking of this, Su Xinyuan's heart suddenly moved, and after a little hesitation, he asked again: "By the way, Second Elder, I found out before that there is no true qi in your body of the immortal and undead, and in addition, you are not like those evil guys of the Black Ji Society, you have mutated seeds in your body that can stimulate gene cells to gain strength, in this case, your clansmen ...... Well, why is it so powerful? Of course, this is just my curiosity, if it is inconvenient, the second elder I just didn't ask. ”

"It's okay, about this, that's exactly what the old man wants to tell you next......"

As he spoke, the second elder pulled Su Xinyuan to sit down again, chuckling lightly: "What Mr. Su said is right, what we immortal and undead are indeed cultivating is indeed not your internal family exercises in the outside world, and the reason why we have great strength is all because of a kind of body quenching technique......"

This book originated from reading books