After Yin Ning installed nine spirit stones on each of the nine bronze dragon heads, after observing it again, and found that there were no omissions and improprieties, he immediately applied a magic trick to each of the nine bronze dragon heads, and the nine bronze dragon heads immediately trembled and buzzed, and the row of spirit stones inlaid on their backs all shone brightly, emitting a burst of soft light, and the brilliant spiritual power flowed like a trickle along the guidance of the dragon's head with the dragon's eyes open.

It wasn't long before Yin Ning felt that the ground began to shake slightly, as if something terrifying was surging underground, it seemed to erupt immediately, and soon in the roar like a fierce beast, the nine bronze dragon capitals raised their heads high, opened their closed dragon mouths, and spat out a gray-black flame.

Soon after, the nine dragon heads drooped down at a certain angle, allowing the nine gray-black flames to converge into one point, forming a gray-black fire mass the size of a person's head, blazing at a height of one zhang above Yin Ning's head, and the high temperature and burning sensation emitted immediately made Yin Ning, who was already a foundation building monk and gradually shed his mortal body a hundred times stronger than ordinary mortals, with a dry mouth and sweat.

Yin Ning, who felt as if he was about to be ignited, immediately cast a layer of spiritual light cover to block the scorching breath of the so-called dry fire that was seduced, and under the protection of the spiritual light shield formed by his own water attribute spiritual power, Yin Ning, who had a cool feeling, suddenly felt extremely comfortable, and then after stabilizing his mind a little, Yin Ning could finally start to carefully examine the so-called dry fire of the extraterrestrial fire.

"I hope you really live up to your reputation!"

Yin Ning looked at the gray-black fire that was blazing above his head, recalled the feeling he had just felt like being burned by this gray-black flame, and muttered to himself with anticipation.

Yin Ning no longer hesitated, and immediately pinched the trick with both hands, and with a halberd finger, he guided all the spiritual materials of a certain auxiliary spiritual material that was floating in mid-air by his "floating spell", and guided it to fly into the gray-black fire mass, which was tightly wrapped and burned fiercely.

The gray-black flame called Dry Fire, worthy of being an extraterrestrial fire, was indeed extremely explosive and powerful, and it only took a moment or so for Yin Ning to guide the gray-black flame group, named "Cloud Thunder Steel", which was known for its hardness in the cultivation realm, and even the auxiliary materials that ordinary fourth- and fifth-order spiritual weapons could not destroy with one blow, began to sneer, and faintly began to show signs of melting.

About half an hour later, the piece of Yunlei steel was calcined, turned into a small dark blue light dust, and under the traction of Yin Ning's divine sense, it turned into a dark blue galaxy three or four zhang long, and obediently fell into a jade box prepared by Yin Ning in advance.

Yin Ning looked at the dark blue crystals that were lying quietly in the jade box, full and translucent, like crystals, and nodded with satisfaction, recognizing the ability of this dry fire to calcine spiritual materials, and then Yin Ning no longer hesitated, and immediately put the rest of the auxiliary spiritual materials into the gray and black fire mass respectively, calcining and refining to the fullest.

In the following day, Yin Ning has been concentrating on calcining and refining the dozens of spiritual materials needed for this refining, and the dozens of spiritual materials that are full of impurities, good and bad, are calcined and refined into boxes of colorful and aura powders and liquids, including the Hangang Stone, the main ingredient for upgrading the grade of "Heigang Seal" this time, which is also very perfectly refined, allowing Yin Ning to get a total of five boxes of pure Hangang Stone Powder Crystal.

After Yin Ning finished controlling and refining all the materials, he retreated to the side, because after the miscellaneous tasks of calcination and refining of spiritual materials were completed, he was about to enter the real refining link, and Yin Ning, who knew nothing about refining, naturally wanted to give up the main position to his own ghoul who had the talent of April weapon corpse.

Under Yin Ning's order, Devil May Cry sat directly below the gray-black flame, and after Yin Ning ordered him to use a part of the refining weapon inherited from the devouring Chen Yuqian Yuan God to his heart's content, his hands were immediately sealed like a butterfly wearing flowers, his lips kept opening and closing, and he was chanting incantations.

When Devil May Cry's trick was cast, Yin Ning immediately threw the "Black Gang Seal" into the gray and black fire, and controlled the speed at which the spirit stones inlaid on the nine bronze dragon heads cast spiritual power, so that after the fire plummeted by more than half, he began to calcine the "Black Gang Seal".

With the calcination, wisps of thick black smoke are also wafting out on the "black gang seal", although this superb magic weapon has the name of the embryo of the spiritual weapon, and can be upgraded to a spiritual weapon, but the refiner who refined this magic weapon is an extremely mediocre refiner, and the refining method is very inferior, so there are still a lot of turbid impurities in this magic weapon.

Although Yin Ning really wanted to refine all the impurities in the "Black Gang Seal", Yin Ning also understood that the "Black Gang Seal" was already a forming magic weapon, not the original refined spiritual materials, even if it was calcined, it would not be possible to remove all the impurities, unless it was calcined with the greatest fire, but then the magic weapon itself would be destroyed, so Yin Ning could only use a weak fire to carefully calcine, without harming the root of the magic weapon, remove the impurities in the magic weapon as much as possible, so that the "Black Gang Seal" In the next fusion of various spiritual materials, it can be smoother, and after the upgrade is successful, the power can also be increased several times.

In the dry fire calcination that weakened several times the fire, many impurities in the "Black Gang Seal" were refined, turned into dirty black smoke and dispersed between heaven and earth, and in the case that the calcination might hurt the body of the magic weapon if it was calcined again, Yin Ning immediately reached out and made a light move, so that after being calcined for a while, the "Black Gang Seal" that seemed to be a little smaller flew away from the gray and black fire and was suspended again in mid-air.

Not long after, Yin Ning's alchemy Devil May Cry finally finished the refining technique to be used this time, at this time, Devil May Cry was sharp, and the power of the corpse was all revealed, in addition to the phantom of the golden refining furnace that exuded a desolate atmosphere behind it, the four crescent moon lines on its forehead were also very clear, but what attracted Yin Ning's attention the most was the two yellow spiritual power hands that extended from Devil May Cry's hands at this time.

This pair of big hands that are completely condensed by spiritual power, it is this time to improve the grade of the "Black Gang Seal", so that it can become the alchemy technique used by the spirit weapon "forging the spirit hand", this kind of refining method is recognized as the lowest refining technique in the entire refining world, and basically all refiners will know it.

But this kind of refining technique, which can better integrate all kinds of spiritual materials, is completely enough for Yin Ning now, after all, Yin Ning just wants to smelt some spiritual materials into the "Black Gang Seal", so that it can be upgraded to become a spiritual weapon, not to refine a spiritual weapon, and it does not need too much subtle refining technique.