The passage was finally opened, and a purple light instantly reflected in the eyes of Lin Feng and the others. Ji Sihan and the others looked towards the center of the cave, and finally saw the strange fire that Lin Feng sensed from a long distance.

Ji Sihan: They still feel extremely incredible. I sensed the existence of a strange fire from such a distance, and this ability was too powerful.

The alien fire should not be fully mature, otherwise, before Lin Feng and the others arrived, the lion king should have begun to subdue this alien fire. But this immature fire has already had a rather strong power. There was already a large purple flame in the center of the cave, and in the middle of the purple flame, there was a bright silver thunderbolt from time to time. Originally, whether it was the naturally generated thunder in the cultivation realm or the thunder summoned by the thunder method, it was a kind of magic effect, which looked like a bright color, but in fact it was incorporeal.

But after observing for a while, Ji Sihan and the others seemed to find that every time the thunder appeared and disappeared, it seemed to be a little smaller than before in the end.

Whether it was an illusion or not was not mentioned for the time being, Lin Feng was a little disappointed.

The cluster of purple flames was the prototype of the Purple Sky Burning Thunder Flame, which could already be confirmed.

Zixiao Burning Thunder Flame is the seventh-ranked existence in the Xuan-level Alien Fire, which is already quite high. In the cultivation realm of the Mahayana period, more than half of them are free of abnormal fire. Of the remaining half, ninety percent of them are still using the Yellow Rank Alien Fire. And even in these ninety percent, more than half of them are actually different fire fires that are bought by instrument cultivation with spirit stones.

Relying on the strength of one person alone, if you want to find a wisp of ownerless alien fire in the cultivation realm, how can it be so simple.

The situation in the sin domain is quite special, and the level of monks is generally not high. But in fact, the helpers and sect masters of those forces in the Sin Domain are not very short of spirit stones. However, even in this case, Changsun Hao only bought a relatively low-ranking Xuan-rank fire.

No matter how high-grade the fire is, the Sin City is actually not nothing, in addition to consignment sales, the Evil Wind Hall will also organize an auction every forty-nine years before the battle for the Sin City. In this auction, although it can't be said that there is every time, the strange fire of the Xuan Rank always appears every two or three sessions.

But at that price, even the eldest grandson Hao, who has a family background for so many years, can't afford it. It is conceivable how high the value of the seventh alien fire of the Xuan Rank is.

However, due to the existence of thunder in the mountain's belly before, Lin Feng had reduced the possible range of different types of fire in the cave. Among the many alien fires related to the thunder attribute, the Zixiao Burning Thunder Flame is indeed the lowest-ranked one.

"Zixiao Burning Thunder Flame!" Changsun Yu also exclaimed. "Zixiao Strange Fire Spectrum" is not a book that everyone knows, and many Mahayana cultivators have not necessarily seen the spirit of "Zixiao Strange Fire Spectrum". But in fact, in the Instrument Cultivation Realm, this "Zixiao Strange Fire Spectrum" is the authority to describe the types of different fires in the Cultivation Realm. When Changsun Hao was in Sin City, he also got a copy of "Zixiao Strange Fire Spectrum", and after he finished reading it, of course, he didn't forget Changsun Yu.

So like Lin Feng, Changsun Yu actually recognized the type of Zixiao Burning Thunder Flame at the first time, but he had always been surprised by the grandeur of Zixiao Burning Thunder Flame, and only now did he react and shout out to let Ji Sihan and them know the name of this strange fire.

"Yu'er, I still have some cold attribute pills and the like here, you can try it now. "What to try? Of course, try to subdue this Purple Sky Burning Thunder Flame. Eldest Sun Yu and Eldest Sun Hao were both instrument cultivators, which Lin Feng had known a long time ago.

The gang of Blood Sun Building, because of Changsun Hao, actually has more than half of the brothers who are instrument cultivators. This is also the reason why when he first returned to Sin City, no one dared to tell Changsun Yu about the fact that Lin Feng might have a strange fire that had not yet been subdued. Because as an instrument cultivator, she clearly knew how strong a kind of Xuan-level alien fire was to the instrument cultivation of the Human Yuan Realm.

"Now...... "What does she have to do with Lin Feng now?" Of course, there is nothing polite to be polite. But what she was thinking about now was not simply when to subdue this wisp of fire.

"What's wrong?"

"Can you ...... Bring it back and try it on my dad first......"

Lin Feng was stunned. "Then you can do it yourself, anyway, I already have the Ember Flame. I'm just wondering what you and your father-in-law are doing so well. You bring this strange fire back, don't your father-in-law finally force you to accept it first, isn't it a bother? The two of them didn't mention how to bring the alien fire back. Although Eldest Sun Yu had never asked Lin Feng too carefully about those situations, he had already succeeded in doing it once. This time there should be no problem.

"No, my dad let me do it this time. I'll have to insist that he take it. Daddy has already reached the peak of the Human Yuan Realm, and there is no problem with the cultivation of the state of mind and the main rules. The difference is the chance that comes to the door. And for instrument cultivation, is there any stronger chance than subduing a high-level alien fire?"

But also, Lin Feng agreed with Changsun Yu's idea. Subduing a high-level alien fire into a natal true fire, there will be a more significant improvement in the ability of all aspects of instrument cultivation. It was already the pinnacle of the Human Yuan Realm, and if it was upgraded like this, it could indeed be used to impact the realm barrier between the Human Yuan Realm and the Earth Yuan Realm. There were many examples of this in the past in the cultivation realm.

Of course, although this method is more reliable, after all, not all instrument repairs have such conditions. Under normal circumstances, the sooner you can subdue the different fires, the better. In this way, you can enjoy all the benefits of a longer period of time.

But if you want to be at the peak of the human yuan realm, you try to break through by subduing a different fire. This kind of alien fire has to be much stronger than the previous natal true fire. It is almost impossible for the Yellow Order's alien fire to be able to do this. It's the different fire of the Xuan Rank, if you have already subdued a Yellow Order Different Fire before, and you want to try to break through by subduing a stronger different fire, you have to have the top twenty different fires of the Xuan Rank.

Moreover, even if you really get the top twenty different fires in the Xuan Rank, the success rate of the breakthrough is still different from person to person.

Eldest Sun Hao's situation was even more tangled, the Alien Fire Sansheng Flame that he had subdued before was ranked twenty-ninth among the Xuan-rank Alien Flames. But no matter how you say it, it's already a kind of Xuan-level fire. If you want to rely on subduing a high-level alien fire to complete this critical kick, those alien fires in the tens of Xuan rank are no longer enough. It has to be the top ten different fires of the Xuan Rank, maybe there is still a little possibility.

And if a guy like Lin Feng, who has already subdued the Ghost Ember Burning Fire, wants to rely on this method to complete a breakthrough, it will be difficult for him to meet the requirements if the Ground Rank Alien Fire Ranking is too low.

So this method is actually very unreliable. The vast majority of the instrument cultivation in the cultivation realm is still a breakthrough completed by ordinary methods.

If Zixiao Burning Thunder Flame, maybe you can really give it a try. Although the period when Changsun Hao reached the peak of the Human Yuan Realm was not too long, the peak was the peak, and the success rate of the breakthrough had nothing to do with how many years he had precipitated at the peak of the Human Yuan Realm. With Zixiao Burning Thunder Flame, maybe it really has a high success rate.

"Okay then, when the Zixiao Burning Thunder Flame is completely born, I'll help you put it away first. ”

When Lin Feng and the others entered the passage, the monks outside also guessed that there must be something good inside. But what kind of strength Lin Feng had, when they fought with the Lion King before, they had seen it. Therefore, the vast majority of the monks were still relieved to be bystanders, and some wanted to see the follow-up situation, so they stayed outside the cave. Most of them knew that the treasure had no relationship with them, so they left the neighborhood.

But there are really people who don't have long eyes, seeing Lin Feng and they haven't come out of the cave for so long. Relying on his ability to use a little stealth spell, he wants to fish in troubled waters. But the space in the cave is so small. The stealth realm of the Moon-chasing Chart is not available to everyone. When you are far away, there is still a certain concealment effect. But when they came to Lin Feng and the others, if Lin Feng couldn't sense it, their reaction would be too slow.

For these people, Lin Feng has nothing to be polite about. It is inevitable to teach a lesson, and as long as the other party starts to hug his head and run away, he will run, and Lin Feng and they will not have to chase the god out to block and kill the god.

Lin Wanshan could feel the Zixiao Burning Thunder Flame, just because the Zixiao Burning Thunder Flame was close to being born. If it was still early for the birth of the new fire, Lin Wanshan would not have felt it. After running to this front, Lin Feng and the others first looked for the entrance back and forth, and then opened the mountain themselves, and then had a big battle with the lion king. In fact, a lot of time has passed, and after waiting in the cave for half a day, the birth of the Zixiao Burning Thunder Flame has finally reached the last moment.

Lightning began to appear more frequently, and the purple flames became more and more boiling. The speed of flames and lightning is getting faster and faster, which makes Lin Feng and the others a little dazzled. Finally, the large purple flame, as it continued to roll, began to condense in the center. The lightning was almost at its limit, but it still didn't escape the range of the purple flames.

The thunder and lightning made that kind of "snort" sound intensively, and finally after the last roar, it was completely quiet. The purple flame, which was originally quite large, had condensed to the size of a fist. There were still flashes of lightning in the flames from time to time, but they no longer made too much noise.

The different flames of the Zixiao Burning Thunder Flame finally completed the condensation completely.

Lin Wanshan flew outside early, waiting for Lin Feng to put the Zixiao Burning Thunder Flame into the Extreme Dao Immortal Pot. Now, the time has finally come. With Lin Wanshan's assistance, Lin Feng put the Zixiao Burning Thunder Flame into another space in the Extreme Dao Immortal Pot to store the alien fire. The current Extreme Dao Immortal Pot already has the Ghost Light Ember Burning Fire of the Nineteenth Xuan Rank and the Zixiao Burning Thunder Flame of the Seventh Xuan Rank in it, two different fires of the Xuan Rank.