Above the lava river with an astonishing temperature, a figure flashed from time to time, like a fish in a spatial rift, swimming freely between the spatial rifts!

"Haha! happy, really happy!" The figure must be in shape, Du Long couldn't help but look up to the sky and laughed.

"Hehe, congratulations, congratulations! In less than eighty years, he has successfully comprehended the subtlety of the intermediate space, which is really gratifying!"

Nodding slightly, Du Long turned his hand and took out the medium-grade immortal weapon Fu Long Slash, standing between the spatial cracks, and a strange sword light appeared out of thin air with a wave of his hand!

One Knife ...... Two knives...... Three-knife ......

The demonic sword light flashed in the air one after another, and Du Long seemed to be not very satisfied with the combat power bonus contained in these sword lights, so he could only continue to use the sword to integrate his perception of the attack formation pattern into it!

Time passed, and he was able to foresee the location of the spatial rift in advance, and while dodging to avoid some spatial rifts that were drawn towards him, he slashed one after another, trying his best to integrate his perception of space into the attack!

With the passage of time, the sword light slashed out by Du Long became more and more bewitching, and it had gradually increased from the original maximum of only a twelve-star combat power bonus to the thirteen-star, fourteen-star, and even the last fifteen-star level!

Understanding the mysteries of the basic primary space allowed Du Long to break through one after another to reach the highest twelve-star level combat power bonus, but understanding the mysteries of the intermediate space allowed him to break through one after another to reach the fifteen-star level of combat power bonus!

With such a rapid cultivation speed, if all parties in the immortal world were to learn about it, it would definitely cause a huge sensation!

You must know that the most difficult thing to improve in the fairy world is the combat power bonus star, although it is also very difficult to improve the soul level, but as long as it takes more time, it is not difficult to improve!

The increase in the combat power bonus star is not necessarily able to improve as long as it takes more time, but it requires the immortal cultivators to have an extremely demonic talent in the attack formation!

As strong as the existence of the Black Killing Guard, there are only a handful of people in the entire Immortal Realm who have reached the standard, but if they want to cultivate the soul realm to the nine-star consummation level, the immortal cultivators are like the carp that crosses the river, and there are countless of them!

Call!

After successfully mastering the fifteen-star combat power bonus power method, Du Long exhaled a long breath with ecstasy, turned his hand and put Fu Long away, and muttered secretly: "It seems that as I guessed at the beginning, the spatial mysteries contained in the primary space ring are comparable to the mysteries of the twelve-star level attack formations, and the intermediate-level spatial mysteries are comparable to the fifteen-star level attack formations!"

As if he understood the doubts in Du Long's heart, Ring Spirit Ling'er continued with the words: "Du Long, to be honest, your way of cultivating and improving your combat power star is unheard of in this immortal realm, even in the divine realm, I have never heard of such a cultivation method!

After listening to this, Du Long did not continue to talk nonsense, but looked at this underground world with endless spatial rifts with a little curiosity, and finally muttered softly: "Ling'er! What kind of place do you say the end of this lava river will be?!" Why do spatial rifts appear one after another in such a stable space, and the deeper they go, the more frequent they appear?!"

'I don't know what the end of this lava river is, only that there is an area at the end of the lava river that cannot be explored by energy, and I don't know what dangers are there!' said the Ringspirit Spirit, muffled softly.

A look of curiosity flashed in Du Long's eyes, and his face showed a look of eagerness, after comprehending the mysteries of the intermediate space, these spatial rifts, which were extremely dangerous for others, for him, their danger had dropped to the extreme!

Once the curiosity in his heart rises, it will be difficult to suppress it again, and without too much hesitation, Du Long dodged and continued to flash along the lava river!

Under normal circumstances, fly directly into the depths of the lava river in the air, and use the teleportation ability to break into some areas where the spatial rifts are too dense to fly through!

After a long time, he finally came to an area where the spatial rifts were so dense that they were outrageous, and as far as the eye could see, the spatial rifts were like a bird's nest, wrapping a lava island several miles in a radius of several miles!

While carefully dodging the spatial rift that was drawn towards him, Du Long stared at the isolated island wrapped in layers of spatial rifts with wide eyes in shock, and he could see through the cracks that there was no trace of any spatial rift on the isolated island at all!

"In this way, the source of all spatial rifts is here!" Du Long secretly mused, "It seems that this should be a large array set up by the Dianhe Heavenly Emperor himself, as for those spatial rifts, if you are not mistaken, they should be used to prevent outsiders from breaking in, right?!"

In a flash of thought, Du Long no longer hesitated, his body had disappeared in place, and when he reappeared, he had already come to the isolated island, and finally he no longer had to guard against the dense spatial rifts, standing on the safe ground, he secretly breathed a sigh of relief, and began to look at the isolated island in front of him curiously.

"Dianlu!" Looking at a thatched house standing not far away, and seeing two quaint characters carved on a boulder at the door of the house, Du Long couldn't help but whisper.

In a flash, he had already come to the outside of the thatched house, a lush medicine garden was overgrown with all kinds of immortal medicine spiritual materials, after entering the isolated island, the high temperature of the outside world could not invade a single bit, and there was no damage to these immortal medicine spiritual materials!

Although this medicine garden has been left unattended for a long time, it can still be seen that this medicine garden was well cared for at the beginning, with ravines crisscrossing and various immortal medicinal materials being classified and planted in small medicine fields.

Scanning the various top-grade immortal medicinal spiritual materials in the medicine garden with bright eyes, Du Long finally took back his greedy gaze, and was not in a hurry to collect these immortal medicinal materials, but raised his feet and continued to walk towards the gate of the thatched house.

Walking into the thatched hut, the furnishings of the house are extremely simple, the bookshelves, tables and chairs are all made of an unknown black hardwood, there is a stone platform for meditation and cultivation, and in addition, there is a shelf of books!

With a full view of the things in the house, Du Long raised his feet and walked towards the bookshelf, and it was estimated that only those books were of some use in the whole room!

His eyes swept over the heavy books, there were probably hundreds of them in total, including miscellaneous secrets, martial arts secrets, and so on!

For those basic exercises, Du Long didn't pay attention to them, for him, the basic exercises are enough to have Xuantian Decision, and there is no need to be distracted at all!

Soon, his eyes fell on a book called Dianhe Soul Record, reached out and pulled it out, stood directly in front of the bookshelf and began to watch.

This is a book written by Dian He, in the form of a diary, his perception of the soul cultivation experience, clearly written into a strategy, which also mentions how the unique set of soul refining techniques was studied by him.

Looking at the Dianhe Heavenly Emperor's cultivation experience of the Soul Together, Du Long had a feeling that he could see the moon through the clouds!

As we all know, the soul is ethereal, even countless powerhouses in the fairy world know the soul but don't know why!

Even if many immortal cultivators who had successfully broken through to the Nine Heavens Consummation Soul Realm, they were all cultivating their comprehensions according to the script, and at a certain moment, they suddenly realized that they would naturally break through.

However, although these people had reached the Soul Realm of the Nine Heavens Consummation, they didn't know the deep-seated reason for the breakthrough of the Soul Realm, they only knew what they had sensed, and then they broke through!

In the Soul of Dianhe, there is a lot of space to elaborate on this information, and in fact, it is also a speculation of the Dianhe Heavenly Emperor on the improvement and growth of the soul realm from a personal point of view!

According to Dianhe's conjecture, whether it is a human race or a demon race with wisdom, its soul is extremely mysterious and unfathomable!

An existence as strong as the Emperor of Dianhe, his cultivation in the soul has reached an extremely deep level, but he still modestly proposes that his understanding of the soul is actually very superficial!

In other words, the mystery of the soul is like the boundless ocean, and his level of perception of the soul is only a drop in the ocean at best!

Dian He even put forward such a conjecture, that is, if an immortal cultivator can achieve true consummation with his soul, in that case, even if he is just an ordinary mortal in the mortal realm, he can also move mountains and reclaim the sea, and even a powerful Heavenly Emperor-level master, to him is just an ant!

Standing in front of the bookshelf, Du Long didn't seem to feel the passage of time, and looked at the Dian He Soul in his hand with relish, just like a sponge, hungry and thirsty to absorb a lot of knowledge in the books!

A sound like glass breaking sounded in his mind, and Du Long, who was reading a book, seemed to have an understanding, gently closed the book, stepped out of the stone platform that had already come to him, and after sitting down cross-legged, he began to cultivate again!