On the second floor of the small building, Zhao Tiezhu was receiving careful instruction from Uro.

Mu Fei held a quaint book in his hand, and on the top floor of the small building, he lay leisurely on the rattan chair, watching intently. On a small mahogany table beside him, there were also several scrolls, all of which were about 'Dao Fire'.

After a long time, Mu Fei closed the book and closed his eyes in contemplation.

Through the study of this book, Mu Fei has a more thorough understanding of the knowledge of 'Dao Fire'.

There are two types of Dao fire.

One is that the source of fire vitality between heaven and earth absorbs the essence of the sun and the moon, and is naturally conceived in the land of extreme yang or extreme yin, which is called natural dao fire.

One is that when the Qi Refiner condenses his own Dao Fruit, there is a certain chance that an associated Dao Fire will appear. This kind of Dao Fire depends on the strength of the attributes of the Dao Fruit, and it is called the Associated Dao Fire.

Natural Dao Fire, which is conceived and reborn from the origin of fire, can be advanced;

And the accompanying Dao Fire is accompanied by Dao Fruit, and it cannot be advanced.

In the Black and White Continent, the human race has developed so far, and there are dozens of natural Dao fires that have been discovered and recorded. And in the world of Dao Pattern Master, there is even more precious 'Dao Fire List' circulating.

The Dao Fire List records in great detail the dozens of natural Dao fires that have appeared on the Black and White Continent, and ranks them according to their strength and ability to advance.

It's just that this Fire List is extremely precious, and it is one of the three great treasures in the Dao Pattern Master World.

The original book of the Daohuo List is authentic, and now almost no one knows who it is. Only incomplete rubbings have been circulated.

However, this mutilated rubbings are also very rare and extremely precious. Any Dao Pattern Master who has obtained the incomplete rubbing of the Dao Fire List will regard it as a treasure and will never be easily exposed.

Therefore, in addition to the more than a dozen natural Dao fires that have been known in the Dao Pattern Master World, the remaining natural Dao fires are still hidden deep in all parts of the continent, waiting for people who are destined to find and discover.

And these dozen or so well-known natural Dao fires, although Dao Pattern Masters can also call them by name, they have no way of knowing their true ranking and progression.

For example, the 'Five Elements Yan Hell Dao Fire' obtained by Mu Fei, and the 'Cold Cold Fire' of his master Shui Tianxin' all belong to one of these dozen well-known natural Dao fires.

Natural Dao Fire is recognized as the first of the three great treasures for Dao Pattern Masters, and the appearance of any kind of Natural Dao Fire will cause Dao Pattern Masters to compete with all their might.

However, because the natural Dao Fire is so rare, the vast majority of Dao Pattern Masters can only use the accompanying Dao Fire to refine the Pill Refining Weapon and make the Dao Pattern.

However, the accompanying Dao Fire is a condensed Dao Fruit that comes out of it, so although it cannot be advanced, it is also very powerful and precious.

Now that Mu Fei has obtained the Five Elements Yan Hell Dao Fire, except for the master and the master, only Zhong Lixiao and Ximen Ji master and apprentice know about it. Although Shi Niang had told him that because of the constraints of the blood oath, Zhong Lixiao would never reveal the Five Elements Yan Hell Dao Fire to anyone. But that Simonji is a great concern.

Maybe Zhong Lixiao will restrain his disciple Ximenji, but people's hearts are unpredictable, and it is impossible to guess whether Ximenji has made a blood oath or has an agreement with his teacher.

Although Mu Fei was extremely worried, he was helpless at the moment. He could only be fully prepared to completely devour the Dao Fire and integrate it into himself. In this way, the sense of security will be enhanced.

Mu Fei opened his eyes and got up, picked up another scroll and continued to study.

This volume obviously does not have the quaint atmosphere of the previous collection, and it is obvious that it has been sorted out in recent years.

This book has a certain foundation, and makes a lot of speculation.

For example, where the natural Dao fire will appear at the limit or in the extreme sun. It was also speculated on the advancement of the natural Dao Fire based on the strength of some incomparably powerful Dao Pattern Masters in the Black and White Continent.

However, these are only speculations and have not yet been confirmed. Mu Fei soon discovered that the reason why it was difficult to be confirmed was that first, natural Dao fires were extremely rare, and second, Qi Refiners with strong soul perception were also rare.

Mu Fei continued to flip through other books, but did not find more valuable information. However, there was a record in one of the books, which made Mu Fei very interested.

The gist is that because of the rarity and preciousness of natural Dao fire, most of them have not been discovered and obtained, so at the beginning, a kind of Qi Refiner appeared, specifically to find traces of natural Dao fire.

Of course, the natural Dao Fire is not so easy to find, after all, the Black and White Continent is really endless, and there are countless dangers. There are many dangerous places, and the cultivation strength is not enough to set foot at all. Later, although this kind of qi refiner did not find the natural Dao fire, he found a lot of extremely rare medicinal materials or ores in the heaven and earth, or other heavenly and earthly treasures by chance.

Gradually, this kind of Qi Refiner became known as the 'Expedition Qi Refiner'. Every well-known explorer has even become a living map of the Black and White Continent. Their cultivation levels are different, but they all have a striking similarity, that is, they are extremely survivable!

It seems that they all have extraordinary luck, and every time they go deep into dangerous places, they can finally get out alive. This group of Qi Refiners, their ability to save their lives is extremely amazing.

And the book specifically mentions a few very powerful, but extremely mysterious expedition qi refiners... Among them, it is recognized that the first one is a mysterious young man named Yan Luo......

After Mu Fei carefully studied all these books, he adjusted his spirit and spirit to an excellent state, then sat down cross-legged and began to try to communicate with the Five Elements Yan Hell Dao Fire in the sea of dantian qi.

This cluster of Dao Fire was forcibly suppressed to the size of a walnut by the black vitality.

Mu Fei's powerful soul perception poured into the dantian qi sea, directly covering this strange Dao fire with a black flame inside.

The Five Elements Yan Hell Dao Fire had been suppressed and succumbed to the Black Yuan Qi, but it had not really merged with Mu Fei. At this moment, when Mu Fei's soul perception package covered it, the Five Elements Hell Dao Fire immediately struggled again.

Suddenly, Mu Fei's entire dantian qi sea was immediately filled with blazing heat.

Mu Fei clearly sensed that this Dao Fire was indeed not like the Dao Fire of the Seven-Rank Dao Pattern Master Su Cheng, with obvious layers. It's a vague lump, just from the outside to the inside, gradually turning from red to black and red.

Mu Fei continued to suppress the restlessness of the Five Elements Yan Hell Dao Fire with his black vitality, and at the same time increased his soul perception and tried to penetrate the heart of the Dao Fire.

The Five Elements Hell Dao Fire, like a proud king, faintly disdainful of Mu Fei's soul perception trying to penetrate into his heart. No matter how much Mu Fei's soul perception tried to invade the innermost part of the flame, he couldn't break away from the invisible

Barriers.

Mu Fei sensed that the Five Elements Yan Hell Dao Fire was suppressed by the black vitality, so he snorted coldly in his heart and simply withdrew the black vitality.

Without the suppression of the black vitality, the meaning of the Five Elements Yan Hell Dao Fire that looked at the world suddenly reappeared.

However, just as it wanted to burn violently, it suddenly felt a soul perception that was more than ten times more powerful than before.

For the first time, Mu Fei truly released all of his mutant soul perception without reservation!

Like an alternative storm wave, the powerful soul perception with supreme domineering, with a crushing posture, instantly blasted through the strange barrier of the Five Elements Yan Hell Dao Fire.

The moment it rushed away, a trace of magical black flame like nothingness immediately appeared.

In the entire heart of the flame, only these five extremely small gray air masses slowly rotated around that trace of magical black flames.

An eternal aura followed, and this flame also turned into stars and melted into all parts of Mu Fei's body. It then reappeared, turning into a complete black flame.

Mu Fei opened his eyes violently.

There seemed to be a strange flash of fire in his eyes. Turning his neck vigorously, Mu Fei showed a happy smile.

The Five Elements Yan Hell Dao Fire finally surrendered completely and was completely fused by him.

Moreover, the fluctuation of will from the Heart of Flame made Mu Fei also know that this fire was completely shocked by his powerful soul perception and was willing to surrender and merge.

At the same time, Mu Fei even knew why it was called the Five Elements Yan Hell Dao Fire.

Even, the advanced method of this fire was clearly presented in Mu Fei's mind.