Since talking to Xuan Yan that day, Su Mai has settled in this deep underground cave.

It was more than half a year later, during which time Su Maide searched around the underground in order to find a place out of the cave, but to his disappointment, although the cave was large, the walls were rocky, and there was no exit.

Except for the occasional few deep and shallow puddles, there was not even a single living water, which also dispelled the possibility of Su Mai wanting to flow out of the mountain with the water.

In desperation, he even managed to get into the narrow deep hole in the small stone cave when he first came, but who knew that it was only a few feet deep, and what was waiting for him was still the hard and cold stone wall.

Later, Su Mai seemed to finally believe Xuan Yan's words, this cave was indeed a dead domain, like a dungeon, and there was no way out.

The only exit, as far as he is concerned, can only sigh.

And the Xuan Yan, who can barely be regarded as a companion, seems to have finished his words for several years in the last exchange, and rarely speaks in the days to come, most of the time is spent meditating and healing, and occasionally goes out of the stone room, and does not know where to go.

After all, he is not the same kind, and Su Mai didn't bother to inquire about his affairs.

When Xuan Yan is in a good mood, he will occasionally take the initiative to say a word or two to Su Mai, but he also cherishes words like gold, and when he first met, he seems to have changed as if he was a different person, but after getting along for a long time, Su Mai also learned some secrets of this cave from his mouth.

It turned out that when Xuan Yan said that this cave had become the first birth of heaven and earth, it was not a lie.

This mysterious fog in the ground is called the chaotic qi, which was conceived by the creation of heaven and earth when heaven and earth were first opened, and yin and yang were not divided.

It may be because it is hidden deep underground, but it has not been affected by the aura of the outside world, and it has been in a state of chaos for thousands of years.

This qi has no distinction between yin and yang, but it can transform all things, which is originally colorless and odorless, but because it is too condensed, it looks white.

It's a pity that because it contains the power of heaven and earth, it is not like the aura of the outside world that can be absorbed and absorbed, and ordinary human bodies cannot bear it, and because it is very rare, there is no inheritance of cultivation.

If ordinary monks rashly absorb it, the meridians will be burned at the lightest, forming a waste person, and at the worst, they will be eaten by it, and the flesh will burst and disappear.

At the beginning, Su Mai didn't know the inside story, greedy inhalation, if it wasn't for the Xuan Yan to drink it in time, I was afraid that it would also be a lot of damage, but fortunately, the dantian in his body was empty, and this qi passed through the body, but it did not cause too much damage.

After another aimless inspection of the stone cave, Su Mai came to the pool as usual, but in fact, it was not so much a pool as a stone cave.

Looking at the fog rising and gushing day after day, I was bored, because I knew a little about this qi, so I didn't dare to make a mistake, and I was a little farther away from the fog wall.

I remember that when I was chatting, Xuan Yan once said: "This qi was formed at the beginning of Hongmeng, when the heaven and earth were first divided, yin and yang were not broken, the world was silent, and everything was nothing, so being in it had the meaning of being far away and reckless, and there was a sense of loneliness." ”

I think that when I first entered the fog, I felt this deeply, and I didn't feel the magic of creation.

It's a pity that this qi is an unusual thing, I don't know the land of Shenzhou, it has been inherited for tens of millions of years, but a certain predecessor has encountered it by chance, or left some kind of cultivation method, but even if there is, with his physique, he can't even cultivate ordinary innate aura, let alone this chaotic qi.

Sighing, Su Mai shook his head helplessly, there is no fate in this life, it is useless to think too much, and now he only asks Xuan Yu to heal his injuries quickly, so that he can take him away after healing.

After such a long time, even if Chen Yu is still alive, he is afraid that he has already gone down the mountain, and Gu Kuang has something important to do, and he is running around the world, and he is afraid that he is looking for a needle in a haystack.

Thinking of this, Su Mai suddenly remembered something, and hurriedly took out an object from his arms, which was a small package, which contained the relics of the nameless old monk in the mysterious dungeon behind the Iron Sword Gate.

Xu is the support of the master's Dharma, although he has suffered several times, fortunately it has been well preserved, and the string of fixed light beads is still lying quietly in it.

Looking at everything in front of him, Su Mai was full of emotion, the master did not hesitate to sit down, with supreme compassion to help him get out of trouble, the only trust is to send his relics back to Wuding Temple if there is a chance.

It's a pity that he is now trapped underground, day and night, if he has to get out of the day, the top priority is to fulfill the master's wish and go to Wuding Temple.

Thinking of the monk's deep kindness, Su Maimeng remembered another thing, which was able to get out of the Nine Yin Ghost Fire at the beginning, and this thing was also indispensable.

Thinking of this, Su Mai smiled unconsciously, although this mysterious thing did not know its origin, and even the monk asserted that it was afraid of being a thing that was not on the right path, and persuaded it to stay away, but along the way, it helped it a lot, and Xuan Yan also said that this thing was extraordinary, but he still couldn't see its clues.

Later, trapped in this cave, there is no danger anyway, and he goes out to find a way out every day, and carries a burden, so he randomly places it on the side of the corner of the stone room, and has not paid attention to it for several months, and now that he thinks about it, he feels a little apologetic.

As soon as he thought of this, Su Mai stood up, stepped into the thick fog, and entered the stone room.

Previously, Xuan Yan had left alone, and if he calculated it, he should not have returned for several days, and for several months, he had never returned alone, and occasionally brought him some food, Su Mai was also accustomed to it, and never asked.

Back in the stone room, when he swept his eyes to the corner of the wall, looking for the black sword, he suddenly found that after a few months, the sword body had faintly changed.

When I first saw it, there was a flow of green qi on the surface of the sword body, which was faintly cold, and then under the dungeon, I inhaled the heavenly yin ghost fire, and there were more blood lines, and now it was abandoned in a corner of this stone room, and the sword body was faintly covered with a layer of mist, and it was impossible to see its original appearance for a while.

Su Mai felt very strange when he saw this, and hurriedly rushed over, wanting to pick it up to see what was going on, but he just held the sword body, and when he raised his hand, he found that it was extremely heavy, and he didn't move it.

"Strange, what's going on with this sword?" Su Mai was surprised, although this thing is heavier than ordinary swords on weekdays, it is only slightly heavier, but this time, it is like a thousand pounds of fall.

After fixing his body, Su Mai took a deep breath, held the sword with both hands, and pulled it hard, but found that it was still difficult to move, and he couldn't help but be surprised, and tried a few more times, but it was still the same.

After returning a few times without success, Su Mai sighed, and then sat down on one side, wanting to take a closer look.

With the light of the spirit stones on the wall, Su Mai found that the mist on the body of this sword seemed to be quite similar to the chaotic aura emitted by the spring.

Is it ......?

Thinking of this, Su Mai suddenly felt his heart beat faster.

To prove his suspicions, he abruptly stood up and ran to the side of the spring to take a closer look.

This mist is usually wisps of mist, all of which converge to the stone cave on the roof of the room, and I don't care about it for a long time, but today I have the heart to investigate, but I found that there are a few wisps of mist almost imperceptibly drifting towards the corner where the sword body is.

Su Mai walked to the corner of the wall again, and saw that the white qi was faintly injected into the sword body, and then it was like being in a pool on the top of the room, churning and rolling, but the momentum was a hundred times weaker, and it looked like an extra layer of white mist from a distance.

"This sword can actually inhale this chaotic qi on its own, it's really not easy!" Su Mai was both surprised and delighted when he saw this strange scene.

Being able to absorb the chaotic qi containing the power of heaven and earth means that this thing itself is an innate thing, not refined by man.

It's just that without the help of external forces, he can't integrate into the sword body, and he was able to inhale the heavenly yin ghost fire in the dungeon before, but he got the help of the profound Dharma contained in the Dingguang Bead, but it was a coincidence.

Although the sword has a spirit, it is ultimately a dead thing and cannot be cultivated on its own, so this chaotic qi can only float on the sword body, but it cannot be refined, but Rao is like this, and it is also beyond Su Mai's expectations.

"I heard Xuan Yan say that this chaotic qi can't be refined, so how can you make it melt into the sword body?" Su Mai was distressed for a while, with his cultivation and knowledge, he naturally wouldn't think of a good method, even if he used Xuan Xuan's hundreds of years of lines, I was afraid that it would be in vain.

Looking at everything in front of him, Su Mai had a feeling of entering Baoshan and returning empty-handed, obviously the treasure was in front of him, but there was nothing to do, and he was at a loss.

There was no day and night in the room, Su Mai looked at the layers of white qi on the sword's body lingering like this, and a reckless aura filled the entire stone room, making him seem to really have the illusion of returning to the wilderness.

There is nothing in heaven and earth, only the sword and the body!

In the blink of an eye, a few hours passed, and Su Mai still found nothing.

A few times, a thought came to mind, but it was suppressed again, and the attempt was too risky, and a careless move would risk your life.

He also thought about waiting for Xuan Yu to come back before making a plan, but looking back, although the two had been together for more than half a year, they couldn't talk about friendship with each other, and it was even better to join Gu Kuang.

After all, Xuan Yan was born in a different kind, the demon beast is ferocious by nature, although it turns into a human form, but its nature still exists, and this black sword can absorb the qi of chaos, which is obviously not comparable to ordinary treasures, in case someone is like that monkey to see the hunting heart, the consequences are not very unimaginable.

Thinking of this, Su Mai unconsciously fell into deep thought, looking back on the interaction with Xuan Yan in the past few months, except for the two of them who had some communication when they first entered the cave, the rest of the time was mostly their own activities, and sometimes they didn't see anyone for several days, which was also a common thing.

Even if he occasionally communicates a few words, it is not salty or light, Xuan Yan has never talked about his own affairs, and even the degree of recovery from his injuries is secretive, if he really has two hearts, this underground stone room will really become Su Mai's life destination.

But what can he do now?

Recalling the way of cultivation in the past, the Five Elements Tribulation Technique is useless in this place of disorder of the Five Elements, and the only thing that can be used is the Void Cloud Technique, but this Void Cloud Technique is practiced by itself, and even the dantian qi gathering can't do it, to say that refining this chaotic qi and integrating it into the sword body is tantamount to a fool's dream.

The Void Cloud Technique that Su Mai cultivated was like the water in transit, never staying in the body, so its role was also extremely limited, otherwise Su Mai didn't know the reason before, and inhaled the chaotic qi in vain, but he was afraid that the meridians would have been burned long ago, like a person being wasted.

But on the other hand, since this aura does not linger in the body, the chaotic qi is most likely the same, is it worth trying to guide this chaotic qi with the Void Cloud Technique and try to inject it into the sword body?

If it really doesn't work, it's okay, even if the meridians are really damaged, in fact, it doesn't matter to him.

As soon as he thought of this, thinking that Xuan Yan might come back at any time, Su Mai felt that it was urgent, quickly adjusted his body, sat cross-legged, and began to operate the Void Cloud Technique.

Since escaping from the Iron Sword Gate, although this exercise is useless to him, after three years of penance, Su Mai still practices diligently every morning and evening as usual, which can be regarded as a thought of his master's dry heart.

Therefore, now it is as natural as breathing, but the chaotic qi in this deep underground cave is too strong, but the aura is extremely thin, and sometimes it cannot be channeled into the body for several days, and even if there is, it is only a faint sense.

However, Su Mai didn't care about this, it was just a routine, and it didn't make a difference to him whether he had aura or not, even if he was full of aura, the result would be the same.