The flames around the Fire Spirit King were steaming, and ordinary people would only feel that the spiritual energy of his whole body was surging, and he had faintly exceeded the limit of the foundation building period, but in Lin Fei's eyes, the powerful spiritual energy of the Fire Spirit King was divided into two parts.

The flames on the periphery are no different from ordinary fire spirits, they are all refined and compressed by the gathering of fire-type spiritual energy, which is equivalent to turning flames into flesh and blood. However, in the body of the Fire Spirit King, there is another mode of spiritual energy, although it is also a fire type spiritual energy, but the energy is purer and more powerful, just like the core of the Fire Spirit King's body!

The Golden Crow Fire that Lin Fei had cultivated was already a true fire-level supernatural power, and the power of its flame was completely different from ordinary flames. But even so, if you really want to compare the fire of the Golden Crow with the core fire in the Fire Spirit King's body, it is still inferior!

After making such a discovery, Lin Fei was naturally shocked in his heart, and instantly remembered a strange fire that he remembered vividly-the Origin Fire!

The Origin Fire is the purest form of fire-based spiritual energy, representing the ultimate power of the flame, and its spiritual energy is so pure that it is not only far beyond ordinary fire, but even beyond the true fire at a level, which cannot be cultivated, and can only be naturally generated between heaven and earth, which is called "Origin".

Lin Fei was able to successfully cultivate the fourth volume of the "Great Sun Golden Crow Heart Sutra" in his last life, because he obtained a "Origin Fire" when he was exploring a secret realm in the Kunlun Divine Ruins, and then integrated the Origin Fire into the Golden Crow Fire, so that he could break through the level in one fell swoop and condense the Yuan Ying successfully!

According to Lin Fei's original plan, after his strength reached a certain level, he would naturally go to Kunlun Divine Ruins and get his hands on the "Origin Fire" again, not only to improve his own strength, but also to change the fate of his good brother Tie Feihu!

In the previous life, Tie Feihu fell in the secret realm in order to save Lin Fei, so in this life of rebirth, Lin Fei naturally had to change this fate.

It's just that what Lin Fei didn't expect was that there was actually another "Origin Fire" that appeared in front of him at this time.

In fact, the "Origin Fire" in the Fire Spirit King's body is not the real Origin, but it is only after absorbing a trace of the "Origin Fire" that it has caused itself to undergo a mutation and become an existence far beyond the ordinary Fire Spirit General.

Just a trace of overflowing energy can make the fire spirit evolve into the fire spirit king, which shows how powerful this "Origin Fire" is.

In fact, with the Fire Spirit King's ability, it was impossible to absorb the "Origin Fire", because the terrifying energy of the "Origin Fire" was enough to incinerate the Fire Spirit King into nothingness in an instant!

According to the ancient classics found by the cultivators in the Kunlun Divine Ruins, the "Origin Fire" can be divided into nine different types according to the cause and nature of its formation.

It is said that the reason why there are nine kinds is because the rules of heaven and earth are extremely nine, and due to the restrictions of the rules of heaven and earth, it is naturally impossible for the types of "origin fire" to exceed nine.

The different nine types of "Origin Fire" are different in nature, and their power is not easy to compare directly, so the nine types of "Origin Fire" are not ranked separately, and each has its own importance.

It is said that there is another wonderful purpose for collecting the nine "Origin Fires", but no cultivator has been able to do this since ancient times, and even in ancient texts, this statement is only recorded as a legend.

The "Origin Fire" obtained by Lin Fei in the Kunlun Divine Ruins Secret Realm in his previous life is the red lotus fire in the nine "Origin Fires", and its flame form is in the shape of a twelve-petal lotus flower.

The Red Lotus Fire was not very helpful to Lin Fei's combat effectiveness, but in the way of refining, it could bring about a reborn change to Lin Fei, and Lin Fei's ability to research nanoparticles was also thanks to the blessing of the Red Lotus Fire.

In the previous life, after Lin Fei obtained the Red Lotus Fire, he had spent a great deal of effort studying the "Origin Fire", so he was definitely the top expert in the entire Kunlun Realm when it came to understanding the "Origin Fire".

Judging from the power of the Fire Spirit King's attack, the trace of overflowing energy it got should have come from the green flame fire of the nine "Origin Fires"!

As the saying goes, the blue comes out of the blue!

The reason why this "green" will come out of the blue is because after the flame burns to the extreme, it will turn from red to blue, and the blue fire will burn to the extreme, and it will turn from blue to green!

The green flame represents the ultimate power of fire, which can be called the fire of destruction, and the strength of the destructive power ranks first among the nine "origin fires"!

It was precisely because the destructive power of this Green Flame Fire was too strong that Lin Fei concluded that it was impossible for the Fire Spirit King to absorb the real Green Flame Fire, because this terrifying destructive power was not something that the Fire Spirit King could withstand at all.

Even Lin Fei vaguely understood why the rules of heaven and earth in the Flame Hell would restrict the strong from entering here, because every kind of "Origin Fire" was not suitable for it, unless it was someone with atmospheric luck, otherwise he couldn't even see the "Origin Fire", so how could he get it?

Under normal circumstances, cultivators in the foundation building period would not have the ability to collect the "Origin Fire" at all, let alone the Qingyan Fire that represented the power of destruction, at most, just like the Fire Spirit King, it would be remarkable to be able to absorb a trace of overflowing energy.

But Lin Fei is an exception, first of all, he cultivates the "Great Sun Golden Crow Heart Sutra", and the Golden Crow Fire obtained from his cultivation is already the highest level among the true fires, and it belongs to the top flame second only to the "Origin Fire", which makes Lin Fei's physical body, and the resistance to flames is by no means comparable to other cultivators.

In addition, Lin Fei had the experience of fusing the Red Lotus Fire in his previous life, although the Red Lotus Fire was inferior to the Green Flame Fire in terms of destructive power, but the difficulty of fusion was not low at all, and in the case of experience to learn from, Lin Fei was naturally a little more sure about collecting the Green Flame Fire.

So the only question at the moment is where is this real green flame?

After Lin Fei glanced at the surrounding environment, he quickly set his eyes on the lava lake!

At present, this lava lake is formed by the convergence of more than ten lava rivers, and looking at the appearance of the lava churning on the surface of the lake, it can be seen that the fire spiritual energy contained in this lava lake is very good, and the green flame fire is naturally hidden in the lake.

Otherwise, why would so many cultivators, Fire Spirit Kings, and Fire Spirit Generals all fight here, and none of them are willing to leave?