It used the earth vein corpse fire to refine the corpse, Gu Changsheng had no relevant experience, he only got some words in some scrolls.

The so-called leyline corpse fire is not actually a fire, but a poison, a poison that can melt all corpses.

Whether it's a zombie, a zombie, or even a corpse, as long as there is a ghost with a corpse, it will be melted into slag by the leyline corpse fire!

And in the scrolls that Gu Changsheng had seen, it was mentioned that this leyline corpse fire was much more docile than ordinary true fire, and it was also particularly durable and stable, as long as the corpse pill was placed in the alchemy furnace, it could be preserved.

The difficulty in refining the poison on the corpse with the fire of the leylines lies in how to condense it into a poison pill, which is the same reason that refining the pill is most likely to fail at the last moment when it is condensed and formed.

When Gu Changsheng was in the Immortal Realm, in order to refine various pills to resist the Heavenly Tribulation, he deliberately spent a lot of time studying the art of alchemy.

Therefore, the way of alchemy can be said to have reached the realm of perfection.

He knew very well that the success of the pill mainly depended on the control of the heat during alchemy, and the timing of the furnace to take the pill.

As for the composition and quantity of raw materials put in, there are also strict restrictions and fine controls, which need to be treated with caution.

Of course, smelting the corpse is not that complicated, as long as the corpse is melted first, and the amount of Ning Dan can be determined according to the amount of venom precipitated.

But when it comes to simplicity, it's hard to do!

Accurately controlling the heat of the Dan furnace and grasping the opening time, even he, an alchemy master, cannot be foolproof.

Even the most famous alchemy giant in the world, Taishang Laojun, had to admit that even if they took action in person, the probability that some top-level pills could become pills would not be too high, only about six or seven percent, which was still the best pill for refining.

Therefore, I should be cautious, but I must not fail to make Dan and miss the opportunity given by God!

Therefore, whether the pill can be successfully refined depends on whether the alchemist has rich experience.

The more alchemists who have alchemized more times, the greater their chances of becoming a pill.

Therefore, alchemists are the two most money-burning professions in the immortal cultivation world on a par with talismans, and of course, they are also the two most popular professions.

Since the last time he went to the Gu Family Medicine Garden in Drum Mountain, Gu Changsheng decided that after the Gu family's affairs were over, he would find a mountain range with strong spiritual energy, plant elixirs, and open a furnace for alchemy!

However, this is what will be done in the future, and it is still necessary to refine the poison pill that can deal with Mei Xian first.

Gu Changsheng planned to use Huan'er, who had just turned into a corpse, to practice his hands, and after finding the feeling, he would smelt the master of Zhao Zhuang to ensure that nothing went wrong.

In this way, even if he fails once, he still has the opportunity to learn from the experience.

Anyway, the owner of Zhao Zhuang is the protagonist, and I believe that hundreds of poison pills can be refined from him, even if there is only about half of the success rate, fifty or sixty can be harvested, which is enough to break the merit of the Mei Immortal.

Gu Changsheng, who had made up his mind, recalled the smelting method of the leyline corpse fire again.

Then he found another flat place where he sat cross-legged and recuperated.

Gu Changsheng sat for most of the hour, and after realizing that his mental and physical strength were all in the best condition, he opened his eyes and stood up, ready to start refining the poison pill.

He dragged the stunned ring out of the storage bag, pinched her into the alchemy furnace, and locked the lid of the furnace.

Although this corpse named Huan'er looked more beautiful than a mortal woman, Gu Changsheng had already seen her terrifying appearance before she became a corpse, and at this time, he had no guilt in his heart, but had a sense of pleasure in eliminating evil and promoting good.

But before he could pinch the spell to urge the earth's vein corpse fire, there were already bursts of ghost crying wolf howls from the alchemy furnace.

Suddenly, there was a gust of wind blowing in this barren countryside, which made Gu Changsheng secretly surprised.

Gu Changsheng didn't have time to think about it, and immediately pinched the trick with both hands, urging the earth vein yin fire while paying attention to the melting of the corpse in the alchemy furnace.

At this moment, the fire in the Dan furnace began to turn from blue to green, and the roar was even louder than before, and the surrounding wandering spirits and wild ghosts were actually attracted by the yin fire in this Dan furnace, circling and flying in the air, making the surrounding yin wind blow more and more violently, disturbing Gu Changsheng's upset.

"Close!"

A ghostly white bone banner was stuck in the ground, and the wandering ghosts were sucked in by a black vortex, and the surroundings finally fell silent again.

Gu Changsheng once again held his breath, urging the earth vein corpse fire, completely melting the corpse, wisps of green liquid gradually converged together in the Dan furnace, forming a green liquid ball.

Then the green ball began to spin out of thin air.

After a quarter of an hour, the green beads split in two and two into four, until sixteen green droplets the size of pearls appeared in the Dan furnace.

Seeing that the poison pill had already taken shape, Gu Changsheng controlled the leyline corpse fire to reduce the fire output, and the alchemy furnace gradually dimmed.

As the temperature inside the furnace began to drop, the poison pill began to slowly condense, and the speed of rotation began to slow down.

In this way, Gu Changsheng patiently controlled the temperature in the alchemy furnace, and adjusted the output of the leyline corpse fire at any time according to the situation of the Ning Dan.

As time passed, a slight salty smell emanated from the Dan furnace, like the smell of blood, and the light emitted by the Dan furnace also turned from green to purple.

But Gu Changsheng knew that at this time, there was still one last step left before Cheng Dan, using a more violent leyline yin fire to carry out instantaneous condensation pills, so that it was possible to smelt off the last bit of impurities and form a high-purity pill.

Thinking of this, Gu Changsheng controlled the earth's vein corpse fire and suddenly exerted force, and in an instant, the entire alchemy furnace began to glow red, as if there was a great evil thing forming in the furnace.

Therefore, from a distance, the alchemy furnace had become an ominous thing that emitted a fierce light, and the smell of blood in the air became more and more intense.

There is no need to guess that Gu Changsheng also knows that this is the critical moment when erysipelas begins to form a condensing pill, so he is more and more concerned.

But at this moment, there was a dull popping sound from the Dan furnace, although the sound was not loud, but it made Gu Changsheng's heart sink and his face was a little ugly.

After hesitating for a moment, Gu Changsheng sighed and put the earth vein yin fire into the corpse pill.

Then with a gesture of his hand, he opened the lid of the Dan furnace that still had residual temperature, and stretched out his head to take a look.

There are several pieces of blood-red solid that have been shattered in the Dan furnace, and it seems that they are the waste pills that have not been completed!

Shaking his head, Gu Changsheng took out a brocade box and put it on the ground, then controlled the alchemy furnace to turn over, poured those waste pills into the box, and then collected them.

Even if these are waste pills, they are also highly poisonous with insufficient purity, Gu Changsheng is reluctant to throw them away, maybe they can be used for other purposes in the future!

After doing all this, Gu Changsheng returned to the same place and meditated.

He recalled the entire alchemy process and summed up the lessons of this failure, the firepower of the leyline corpse fire in the early stage was not fierce enough, resulting in too many impurities in the final condensation......

It wasn't until the alchemy furnace had completely cooled down that the refining of the poison pill began again.

The raw material used this time is Zhao Zhuangzhu, which needs to be refined for a longer time, and the fire control technique also needs to be more refined.

This time, Gu Changsheng's face was expressionless, and after the state was adjusted, he silently started this round......

Just after the ugly hour, Gu Changsheng sat cross-legged on the ground, looking at the dozens of blood-colored poison pills floating in front of him, with a contemplative look on his face.

Although there are these poison pills, how can they be put into the spiritual blood that Mei Xian drinks?