The Black Ink Mountains were completely shrouded in night at this time, and from time to time there were some fierce beasts and behemoths.

At this time, in the outside world, I am afraid that even a cultivator of the Phantom Body Realm would not dare to act in such a dark night, because the dark night of the Dragon's Breath Forest is the world of beasts.

This is an ordinary peak in the Black Ink Mountains, and halfway up the mountain, a slightly larger black stone is quietly embedded in the mountain. Behind the black stone, there is a cave......

In the mysterious cave, from Qin Tianxin's cultivation to now, four days have passed.

In Qin Tianxin's dantian, the white air mass that originally appeared after the condensation of the second cyan dan pattern was already like the formation of the first two dan patterns on the second day, and after a series of changes, it condensed into the third dan pattern, which was firmly attached to the yuan dan in the dantian.

The third Dan pattern was naturally white, and at this time, on Qin Tianxin's golden bright Yuan Dan, there were three runes that seemed to be narrow, but exuded amazing fluctuations. The dark yellow, dark blue, and milky white Dan patterns were attached to the Yuan Dan side by side, and there was some distance between them, although they didn't look as dazzling as the Yuan Dan, but Qin Tianxin knew that these three Dan patterns were the key to improving his strength since he entered the Yu Dan realm.

"The third Dan pattern was condensed before entering the fourth level of the Dan Realm, which is a bit unexpected. ”

Since the third Dan pattern of Qin Tianxin's Yuan Dan had already condensed the next day, why hadn't Qin Tianxin withdrawn from cultivation yet?

It turned out that just after the third Dan pattern was condensed, Qin Tianxin suddenly had a very wonderful feeling, that is, many meridians in his body vaguely seemed to have signs of internal space expansion.

After experiencing the previous two breakthroughs, Qin Tianxin naturally knew what the meridian space expansion represented. And this expansion of the meridian space is obviously reminding himself that he can make a breakthrough in the fourth level of the Dan Realm.

"Is it finally time to break through?"

Qin Tianxin naturally would not give up such an opportunity, and while the exercise "Jie Dan" was running, his body was like a long whale absorbing water, constantly inhaling the surrounding spiritual energy into his body. It was then imported into the dantian for this breakthrough.

This kind of absorption of spiritual energy lasted for two days. And with the fusion of aura and Yuan Dan, in Qin Tianxin's dantian, the golden Yuan Dan seemed to become more condensed.

If there were strong people with a very advanced realm present at this time, and Qin Tianxin did not deliberately resist their visits to his body, then those strong people would be able to discover that Qin Tianxin was already condensed into the third Dan pattern but had not yet grown into the fourth Yuan Dan of the Jie Dan Realm, and its thick Cheng dù was exceptional.

However, it seems that two days of aura blending are not enough. Qin Tianxin's Yuan Dan was like a beast that had been hungry for a long time, frantically devouring the aura that continued to pour into the dantian. Fortunately, the aura in this mysterious cave is indeed too abundant, and for some reason, the replenishment ability of the aura is also extraordinarily strong. Therefore, even if Qin Tianxin's speed of absorbing spiritual energy was very fast, there was no lack of spiritual energy around him.

In this greedy aura absorption, more than a day has passed......

When the sun rises again and the light returns to the Dragon's Breath Forest, in the mysterious cave. The absorption of spiritual energy by the Yuan Dan in Qin Tianxin's dantian also seemed to have reached an extreme saturation.

Then, Qin Tianxin seemed to hear a very slight "poof" sound coming from within the Yuan Dan, and it felt as if it was constantly injecting energy into a certain enchantment, and finally this enchantment could not bear it. There was a crack in it. When a crack appears, it spreads rapidly, causing the entire barrier to erupt.

Of course, Qin Tianxin's Yuan Dan would not break out. At this time. I saw that Yuan Dan, who was originally spinning, suddenly stopped rotating, and then began to tremble slightly.

The tremor lasted for about half an hour, although Qin Tianxin was a little surprised in his consciousness. But I'm not worried. Sure enough, after half an hour, Yuan Dan's trembling also stopped.

Immediately after, Qin Tianxin was even more surprised to find that the Yuan Dan that was quietly suspended in the dantian at this time actually swelled suddenly in an instant. As for the three Dan patterns on the Yuan Dan, after the Yuan Dan expanded, their body shape did not change, but they were more firmly engraved on the Yuan Dan.

Yuan Dan swelled, and suddenly a wave that was two or three times stronger than before also emanated from it. This made Qin Tianxin couldn't help but feel very happy, Yuan Dan's fluctuations increased, and his own strength naturally increased in tandem with it. Moreover, to be precise, he has already advanced to the fourth level of the Yudan realm.

However, before Qin Tianxin could be happy for too long, a very strong feeling of pain quickly appeared all over his body, making him can't help but twitch his facial muscles, his brows furrowed, and sweat came out of his forehead in the blink of an eye.

"I almost forgot, how could a breakthrough be without the expansion of the space inside the meridians?"

Qin Tianxin muttered to himself, and at the same time, his nerves immediately tensed.

The pain caused by this meridian space expansion seemed to be more intense than the previous two times, and although he was immersed in the state of cultivation, Qin Tianxin's teeth still clenched his lip involuntarily, and his body was constantly trembling.

"Hmph, I've already been promoted to the fourth level, am I still afraid that a little pain in your stable realm will not be successful?" Qin Tianxin's consciousness was like an angry beast, and he let out a roar of resistance.

The Dan Realm is like this, every time the recount rises, you have to endure the pain that penetrates deep into the bone marrow caused by the expansion of the internal space of the meridians. This is not only to allow the cultivator to have a larger meridian space after breaking through and be able to accommodate more aura, but also to consolidate the foundation of the suddenly improved strength.

If a cultivator is unable to bear such pain and faints in the middle of the process, although this will not cause him to return to the realm before the breakthrough, it will cause hidden dangers to his future cultivation. It is very likely that this hidden danger will erupt in any subsequent breakthrough, and then make the cultivator's breakthrough fail, and the ascent of cultivation will become extremely slow, and even those who are not strong in mind will not be able to stagnate in their cultivation.

Therefore, it is not so much the breakthrough that has been completed that is more important than the pain at this time.

Fortunately, Qin Tianxin has been very strict with himself since he was a child, and his perseverance is rare among his peers. Therefore, although this kind of pain was considered a kind of torture for Qin Tianxin, it was not enough to make him unable to support it and faint.

The meridian expansion lasted for two hours, and as the pain gradually weakened, finally, Qin Tianxin also realized that the consolidation of the foundation this time was completed.

Feeling that the aura was flowing more smoothly in the meridians around his body, Qin Tianxin knew that his combat ability had been greatly improved. Qin Tianxin was confident, if he let himself compete with Cheng An of the Great Dragon Gate again, he would definitely be able to defeat the latter relatively easily, and he would not have to play so many hole cards.

"It should be considered completely stable now, and it should be considered the fourth weight in the Yudan Realm......" Qin Tian said in his heart.

Every time I improve my strength, I need to endure a lot of pain, but these are really insignificant compared to the excitement brought by becoming stronger.

That's right, it's really excited, and even when he was suffering the pain of meridian expansion, Qin Tianxin was a little excited. Compared to some cultivators who were not strong in their hearts and were afraid of the danger of breaking through, Qin Tianxin's mentality was undoubtedly much stronger, which could be said to have a great effect on his progress on the path of cultivation.

......

The fourth realm of his knot Dan realm has achieved stability, and Qin Tianxin is still a little satisfied. Subsequently, Qin Tianxin was also preparing to withdraw from the state of cultivation and take a short rest.

However, just as Qin Tianxin was about to stop his frantic absorption of the aura from the outside world, in the depths of his mind, the mysterious power suddenly sent out a fluctuation, which actually made Qin Tianxin's idea of quitting cultivation change.

"What's going on, haven't you already completed the breakthrough?" Qin Tianxin also had some doubts in his heart.

Not only that, but on the stone wall with gaps in the cave, three very bright light clusters suddenly appeared. Although it was not clear what the light clusters were at this time, if they were close, they could feel a rather strong fluctuation from the three light clusters, which made people a little surprised.

After the light cluster was generated, it first levitated in the air for a moment. Then, they seemed to have found their target, and they all floated towards the place where Qin Tianxin was......

[Frost Moon] updated to!(To be continued......)