In the square inch world, on the top of a mountain, Bai Yunfei sat cross-legged, with the piece of green black meteorite the size of a millstone in front of him, contemplating.

Not far from the side, Tang Xinyun was sitting quietly on a stone, looking at the pensive Bai Yunfei with gentle eyes.

As for Xiao Qi, he is now in the inn room outside, guarding Fang Cun Shi.

Not long ago, after catching up with Jing Mingfeng outside Yancheng for a while, the two sides separated there, and did not act together, Bai Yunfei also saw a clue, Jing Mingfeng and his grandfather seemed to be investigating something, and they didn't want to expose their whereabouts too much, if they were with themselves, the target would become bigger, which was not conducive to their actions.

He could naturally guess that Jing Mingfeng came to this Yancheng not only for the wind spirit fairy grass at the auction, but he didn't ask in detail, after all, everyone has their own affairs, although he regards Jing Mingfeng as a brother, but he doesn't have to ask about everything, since Jing Mingfeng didn't mean to let him help, then he didn't say much.

However, he was still keenly aware that when he mentioned the Qin family before, Jing Mingfeng's reaction was a little strange, plus the place where the two met was an underground mineral vein under the jurisdiction of the Qin family, and at that time, Jing Wuying was diving deeper alone to explore something, he faintly felt that Jing Mingfeng's purpose for coming here might be related to the Qin family.

The auction was three days later, and Bai Yunfei's original plan was to play in Yancheng at will for the next few days, but now that he met Jing Mingfeng and obtained the Qingwu Meteorite, he decided to use these few days to fulfill the promise he made at the beginning - to refine a heaven-level horcrux for Jing Mingfeng.

Three days, Bai Yunfei estimated that it should be enough, he made an appointment with Jing Mingfeng, if there was anything during the period, he could come to the inn where he stayed to find him, if not, then the two would meet at the auction in three days.

After returning to his residence in the city, Bai Yunfei decided to start refining weapons immediately.

For all the disciples of the Refining Weapon Sect, what could be more attractive than refining a high-level Horcrux? Especially after obtaining the rare and top-grade refining materials......

As for Tang Xinyun, Bai Yunfei originally wanted her to play in the city by herself, but she insisted on accompanying Bai Yunfei, saying that it was good to observe and learn refining skills.

......

"Such a large piece of green black meteorite, if you want to condense it all into a dagger, I'm afraid it will be very difficult......"

Bai Yunfei looked at the green black meteorite in front of him and muttered to himself.

According to Jing Mingfeng's requirements, he wants to refine a dagger, using Jing Mingfeng's original horcrux 'Black Wind' as a model, and the volume of this piece of green black meteoric iron, I am afraid that even if he refines a Fang Tian painting halberd, it will be more than enough, if he wants to refine a dagger, there will definitely be a leftover, and Jing Mingfeng also said that he only needs a dagger, if there is a surplus of materials, he will give it to Bai Yunfei.

In this way, he still took advantage of himself, Bai Yunfei secretly decided that the refining of this Horcrux must use twelve points of strength to strive to refine the best Horcrux for Jing Mingfeng.

Since the middle stage of the Advanced Soul Emperor, he is still refining for the first time, before the Advanced Soul Emperor, he has been able to refine the Heavenly Rank Lower Grade Horcrux, and with his current strength, there should be no problem in refining the Heavenly Rank Middle Grade, but he will only know after trying it.

After carefully planning in his heart for a long time, Bai Yunfei waved his right hand, and a lot of things appeared in front of him, all of which were all kinds of refining materials, in addition to ordinary necessary auxiliary materials, there were also many rare materials that could be used as the main materials of refining in themselves, and he decided to try to participate in the Qingwu Meteorite Iron to see if he could improve the power of the Horcrux.

Such a large piece of green black meteorite iron, naturally, it was impossible to directly throw it into the refining ding, and after thinking about it, Bai Yunfei decided to divide it into four parts and refine them one by one.

He didn't think that he would succeed at one time, but fortunately, the materials were sufficient, and even if he failed once or twice, he could accept it.

A layer of fire element power wrapped the Qingwu meteorite, holding it up in front of him, Bai Yunfei waved out his right hand, directly stimulating the flame wing blade effect of the flame blade armguard, a blazing fire blade slashed out, hitting the Qingwu meteorite...... Actually intact!

"The raw ore state alone is so hard, if the magazine is quenched again, what will it be like to condense......

Bai Yunfei was secretly surprised in his heart, and after thinking about it for a while, he directly took out the silver-white long sword he got from the Monsoon Sea, this sword was named 'Nightmare' by him because of the +10 additional effect of Nightmare Entanglement, this sword has an attack power of more than 6,000 after strengthening, and it is the strongest Horcrux he has now.

"Whew!!!"

With a flash of silver light, Bai Yunfei had already slashed out two swords vertically and horizontally, and the green black meteorite in front of him was finally smoothly divided into four pieces.

"Huh?"

And at the moment when the Blue Black Meteorite was unfolded, Bai Yunfei suddenly frowned, and a strange feeling that he had never felt before appeared in his heart, at this moment, he seemed to feel a slight change in the Yuan Force of Heaven and Earth around him, but he couldn't tell what was wrong.

"Huh, this stone is so strange, Yunfei, what is this?" At the same time, Xiao Fang's slightly surprised voice suddenly sounded next to him.

Bai Yunfei's eyes lit up, and he said to Xiao Fang: "This is Qingwu meteorite, a special ore from outside the sky, Xiao Fang, have you found anything special?"

"Extraterrestrial Meteorite?" Xiao Fang was visibly shocked, "No wonder the Heaven and Earth Yuan Power contained in this stone is so rich and pure...... Wind and darkness dual attributes, and perfect fusion, if this is refined into a Horcrux, the power is absolutely amazing, and ......"

It seemed to think carefully for a moment, and said uncertainly: "At that moment just now, I felt an extremely strange energy, not only the wind and dark attribute, it was very special...... But it's too faint to sense exactly what kind of energy it is......"

"Really?" Bai Yunfei muttered, "I don't know much about this green black meteorite, so let's refine a piece of it first, and after smelting, we can know what is so strange about it......

No longer thinking about it, with a wave of his right hand, the Thunder Fire Ding appeared in front of him, still putting the No. 1 Flame into the Ding, and then a piece of green black meteorite iron and a large number of other materials next to it flew up and threw them into the Thunder Fire Ding......

Next, there is the long refining process......

......

"Boom!!"

I don't know how long it took, a dull roar suddenly sounded in the square inch world, and a thick black smoke rose from the mountain where Bai Yunfei was, straight into the sky.

"Ahem, ahem......"

An uncomfortable cough sound came from the billowing smoke, and a hot wind suddenly rolled up, rolling up the smoke that enveloped the mountain into the sky, revealing Bai Yunfei's somewhat gray and embarrassed figure.

"Yunfei, are you alright?"

Tang Xinyun, who had flown to the distance early to 'take refuge' in the air, flew back and asked with concern.

"No, nothing, tsk...... I didn't expect this green black meteorite to be so difficult to quench, and it exploded directly without paying attention......" Bai Yunfei wiped a handful of dust on his face, but made his face more flowery, shook his head again, and threw off a piece of black powder, the whole person seemed to have climbed out of the coal kiln, and Tang Xinyun couldn't help but laugh.

Bai Yunfei was a little annoyed in his heart, this green black meteorite iron was very different from all the materials he had refined before, just refining its essence was more than ten times more difficult than the thunder crystal essence he had refined at the beginning, if he had advanced to the Soul Emperor, I am afraid that he would not even be able to smelt it, and now with the strength of his mid-stage Soul Emperor's strength, he was only able to 'barely' quench this thunder crystal essence normally.

And what he did just now was only to quench half of the impurities in the piece of green black meteorite iron, but when he wanted to continue refining, he was unstable in control, and directly exploded, and all the materials turned into flying ashes.

While pranayama and recuperating his energy, he carefully pondered the details of the refining process just now, and after finding a few places that could be improved, Bai Yunfei took out a second piece of green black meteorite iron and began refining it again.

......

"Boom!!"

It was the same dull roar again, and in the billowing smoke, Bai Yunfei walked out again with a disgraced face, this time even more embarrassed than last time, and even the clothes outside were turned into strips of cloth in the explosion.

Sitting on a stone, Tang Xinyun was next to him carefully cleaning the stains on his face and head, but Bai Yunfei's expression was a little erratic, as if he was immersed in thinking, after a long time, he stood up suddenly, startling Tang Xinyun next to him, and then saw him walk quickly to the front of Lei Huoding and sit down cross-legged.

"You can't be too eager for quick success, it seems impossible to perfect the tempering, this time stop at 80%, you should be able to succeed......"

Muttering to himself, with a wave of his right hand, another piece of green black meteorite and a large amount of materials were taken out and thrown into the Thunder Fire Ding......