In Dilong City, Xia Mu was led by the young man to a refining room located thousands of zhang underground, and in the center of the refining room, a huge nine-pointed black tripod was being burned by the raging ground fire.

And beside the nine-cornered black ding, a middle-aged man sat cross-legged, and a powerful divine soul power spread out from his body, causing the surrounding air to fluctuate, and bursts of heat waves centered on the middle-aged man, rippling in all directions.

"What a powerful divine soul power. ”

Feeling the power of the divine soul that permeated the firearm, Xia Mu's eyes also quietly crossed a look of shock, the former was afraid that just relying on this divine soul power was enough to threaten the powerhouse of the immortal realm.

After leading Xia Mu to this refining room, the young man called Lin'er respectfully retired and left.

"Seniors. After the young man left, Xia Mu looked at his eyes slightly closed, as if he was in deep thought with a firearm hugging his fist.

"I have almost comprehended this illusion weapon Dao, and I can start refining it at any time, but before refining, I want to remind you that the natal spirit treasure refined with the illusion weapon Dao will not only attract thunder calamity when it is promoted, but also because of its relationship with your life, even you will be robbed, which is not clearly stated in the jade slip, it is what I have comprehended in the past few days. Huoqizi looked at Xia Mu and said lightly: "Now do you still plan to use this illusion weapon Dao to refine your natal spirit treasure?"

"Being able to experience the Thunder Tribulation before immortality is also considered my creation, seniors, please do it. Xia Mu nodded.

It is not his style to talk about retreating from the battle now, and being able to feel the thunder tribulation in advance is definitely of great help to Xia Mu's promotion to immortality in the future, although he may also be injured or even fall because of this, but if he can't even survive the thunder tribulation of the natal spirit treasure, let alone the immortal thunder tribulation in the future.

"Courageous, no wonder you can be taken by that girl. The firearm complimented, and then changed the conversation and said, "Okay, let's get down to business, take out your natal spirit weapon." ”

Xia Mu nodded, didn't talk nonsense, and with a palm of his hand, a dark golden halberd flashed out, and then Xia Mu handed the immortal halberd to the firearm, and said: "Senior, the instrument spirit in my immortal halberd is not born and raised, but replaced by a leader-level ice Jiao spirit soul, I don't know if this has any impact on the natal spirit treasure refined by the illusion weapon dao." ”

"Naturally, it has no effect, but in the future, when your natal spirit treasure is promoted from the acquired best to the first world, you may encounter some troubles. Taking the immortal halberd from Xia Mu's hand, the firearm gently stroked the halberd body, and said slowly,

"Can you elaborate on the seniors?" Xia Mu was stunned when he heard this.

"Lingbao is divided into acquired, innate and chaotic, chaotic Lingbao we don't talk about it, it is too far away from your current realm, and the innate Lingbao, the reason why it is called the innate Lingbao is because its treasure body and treasure spirit are born and raised, and the prohibition contained in it is also innate, so it is called congenital. ”

"If the acquired spirit treasure wants to be promoted to the congenital, it needs to go through the innate thunder tribulation, and in the baptism of the thunder tribulation, wash away the acquired refining body, that is, transform the acquired treasure body into the innate treasure body, so that the promotion can be successful. It's just that now you have replaced the treasure spirit of the natal spirit treasure with the fierce beast spirit, which means that your treasure spirit is also an acquired body, not a congenital birth, so when you are promoted to the innate level, its thunder tribulation strength is at least twice that of an ordinary spirit treasure. ”

"Of course, there must be losses and gains, replace the innate treasure spirit with the spirit of the fierce beast, then once your natal spirit treasure is refined, you can directly skip the stage of raising the treasure spirit, and your treasure spirit is stronger than the ordinary treasure spirit, whether it is spiritual wisdom or soul power, to put it simply, your natal spirit treasure is more powerful than the ordinary natal spirit treasure in the acquired stage, but when you are promoted to the congenital, the innate thunder tribulation encountered is also stronger. ”

"I see. Xia Mu nodded, and then said: "Senior, which one is stronger, the innate spirit treasure promoted the day after tomorrow or the innate spirit treasure cultivated by heaven and earth?"

Hearing this, the firearm replied without thinking: "Naturally, it's the latter." Of course, there are no absolutes in everything, for example, if you use the Natal Spirit Treasure refined by the Illusion Weapon Dao, if you are promoted to the Innate in the future, it may not be worse than that column of Spirit Treasures, after all, your Natal Spirit Treasure can be devoured infinitely, devour a few more pieces of that column of Spirit Treasures, maybe you can be promoted to Chaos Spirit Treasure in the future. ”

"Ahem, okay, I'm not here to popularize the common sense of refining weapons to you today. As if thinking that the conversation would be endless, the firearm coughed lightly, and then said lightly: "It takes seven days to refine your natal spirit treasure, and you have to stay here for these seven days, because I need to borrow your natal soul blood at any time." In addition, although I am very confident in my alchemy, there is also a 10% failure rate, so you should be mentally prepared. ”

Xia Mu nodded slowly, the failure rate of Yicheng was already very low, although there were still some risks, but compared to Xia Mu's own failure rate of ten percent when refining, Xia Mu felt that this small failure rate of Yicheng was already negligible.

"Then I'll start, silence!" The firearm looked solemn, flicked his fingers, and the immortal halberd in his hand turned into a streamer and sank into the nine-cornered black tripod, and then the firearm pressed the ground with both palms, and suddenly streams of cyan flames emerged from the ground, pouring into the tripod along the base of the nine-cornered black tripod.

"Qingyan Earth's Heart Fire!"

Looking at the cyan flame that poured into the ding, constantly burning the immortal halberd, Xia Mu's heart was shocked, this green flame earth heart fire can only be born from the fire veins above the sixth grade, it is an excellent flame for refining, this kind of flame can provide a high enough temperature for the refiner, but it is not violent in itself, but very mild. In many cases, refiners fail to refine their weapons because the flames used are too violent, after all, no matter how well the flames are controlled, the berserk factor they possess still exists.

After summoning the Qingyan Earth Heart Fire, the look in the eyes of the firearm also became more and more confident, and when the sleeve robe waved, the huge divine soul power swept out, controlling the Qingyan Earth Heart Fire in the Ding to slowly wrap the Immortal Halberd.

"Zizi ......"

With the Qingyan Earth Heart Fire surging, the Immortal Halberd Body suddenly began to tremble violently, and then the dark golden halberd body began to melt, for this situation, the firearm had already seen no surprise, and continued to control the Qingyan Earth Heart Fire to refine the Immortal Halberd, and at the same time, he turned his palm over and threw a piece of red ore into the Black Ding.

"Whew!"

It can be seen that as soon as the red ore was thrown into the ding, it immediately melted into red juice to wrap the immortal halberd, and suddenly the halberd body melted faster, and in the process of melting, wisps of black flame emerged from the halberd's body, which was the impurities in the immortal halberd, which was burned out by the green flame of the earth's heart, and turned into a black flame before it dripped and dissipated.

It can be seen how high the temperature of the green earth core fire is.

Xia Mu sat quietly on the side, watching every move of the firearm without blinking, he also learned to refine the weapon, the other party's movements, every step looked smooth, and it could even be described as beautiful, and he could feel that under the control of the terrifying power of the firearm, this Qingyan Earth Heart Fire seemed to have turned into one of his hands, refining as much as he wanted, without a trace of sluggishness and jerkiness, Xia Mu was dumbfounded.

This is art, this is the master.

Xia Mu sighed in his heart, and the immortal halberd had already lost its form under the refining of the Qingyan Earth's Heart Fire, turning into a dark golden viscous liquid.

It could be seen that in this viscous dark golden liquid, a miniature snow-white dragon was entrenched in it, swimming around, seemingly completely unaware of the high temperature that could burn the Immortal Halberd.

And after refining the immortal halberd into a dark golden viscous liquid, the firearm did not continue to add any materials, but controlled the Qingyan Earth Heart Fire, repeatedly refining the dark golden liquid, and quenched it for three days and three nights, until the dark golden liquid faintly became a little transparent, the firearm Fang Fang exhaled lightly, and then looked at Xia Mu and said lightly: "Every next step is the most important thing, during this period, what you need to do is to continue to provide your natal soul blood, and leave the rest to me." ”

Hearing this, Xia Mu's heart suddenly tightened, nodded heavily, and at the same time pressed his right hand on his eyebrows, ready to take out his natal soul blood at any time.

Seeing Xia Mu's move, the firearm also nodded slightly, and then looked at the dark golden viscous liquid in the ding, and with a flick of his fingers, a fist-sized piece of white ore flew out and crashed into the viscous liquid.

"Buzz!"

As the white ore was submerged into the viscous liquid, strange fluctuations echoed in the nine-cornered black tripod, this fluctuation was very weird, even if it was closed by the black tripod, it could still be transmitted to the outside world, making Xia Mu's heart shake for a while, and he actually had an illusion.

Fortunately, Xia Mu's heart was strong enough to wake up from the illusion in an instant, and the firearm was not affected at all, and he had been carefully refining the Qingyan Earth Heart Fire.

It can be seen that with the formation of the seal in the hands of the firearm, one after another prohibitions continue to submerge into the dark golden liquid in the dingzhong, and every time a ban is swallowed, the dark golden liquid becomes a little brighter, and golden rings of prohibitions begin to appear on its surface, and they are constantly rotating.

At the same time, the shape of the dark golden liquid began to change constantly, turning into a three-foot green blade, a nine-foot machete, and a meteor hammer......

"Blood!" the firearm whispered as he continued to refine the dark golden liquid into the inhibition.

Hearing this, Xia Mu immediately became distracted, and the power of the divine soul in the Mud Pill Palace flew out wrapped in a drop of soul blood, fell into the nine-cornered black ding, and merged with the dark golden liquid under the control of the firearm.

"Boom!"

With the fusion of Xia Mu's soul blood, a certain balance in that dark golden liquid seemed to be broken, and it completely became violent, and a change that had never even seen a firearm began to take place.