"Blood-clotting grass, white grass root, stamen, ......."

In the cave, Xiao Yan put some of the medicinal materials he had carefully selected into the alchemy furnace, and then put his hands on the furnace, and the flames in the medicine pod were pitch black, as if they were flames from hell.

This was the first time he had refined an elixir without the gaze of the elder, and it was also a healing medicine of a higher grade that had been refined by leapfrogging, although the healing medicine was the least difficult category among the many elixir classifications, it was still a big challenge for him.

Xiao Yan stared intently at the churning black flame in the medicine ding, and used his soul power to constantly manipulate it to refine the blood coagulation grass into white powder, this process was extremely easy, because when he was still in Utan City, he used to refine a large number of healing pills with blood coagulation grass as the main medicine to make money.

Looking at the pure white powder placed in the jade box, Xiao Yan was satisfied, this was much better than what he had refined before, and it seemed that his progress was huge.

Next were the white grass root and the stamen, both of which were refined by Xiao Yan for the first time, and before that, he had only learned about them when he was teaching at the medicine elder.

As expected, the first refinement ended in failure.

After Xiao Yan cleaned out the black slag in the alchemy furnace, he stared at some small black particles and thought deeply, he felt that his own refining method was no problem.

But why is this happening?

Throwing away the slag, Xiao Yan unbelievably took out a few more white grass roots and stamens, and then put them into the refining furnace one by one to refine, but without exception, all these medicinal materials failed to be refined.

"This, how is this possible?"

Xiao Yan's eyes widened as he stared at the slag that had accumulated into a hill on the ground, even when he was refining medicine for the first time, this situation did not appear, which couldn't help but make him doubt his level.

Isn't it nothing if you are out of medicine?

No, it can't be!

Xiao Yan took out another blood condensation herb and threw it into the refining furnace, this time, he was going to search for his problem by refining the medicinal herbs he was most familiar with.

Ten minutes later, the blood condensation grass in the alchemy furnace also turned into a puddle of slag.

"The steps used to refine the Blood Condensation Grass twice are obviously exactly the same, but they have obtained completely different results, there must be some kind of variable in this, and it is the existence of this variable that leads to the failure of refining the medicine."

After the most proficient blood coagulation grass failed to be refined, Xiao Yan, who was originally doubtful of life, calmed down again.

Because he has understood that the problem is not with him.

One more time.

Xiao Yan once again threw a Blood Condensation Grass into the refining furnace, the same step, this time he directly wrapped his soul power around the medicinal herbs, ready to feel every bit of change when the Blood Condensation Grass was refined.

Minutes and seconds passed.

A slight change in the alchemy furnace caught Xiao Yan's attention, and he found that just as he was refining the Blood Condensation Grass, suddenly some of the substances in the Blood Condensation Grass disappeared directly.

At the same time, Xiao Yan keenly felt that a trace of pure energy was fed back by Hei Yan, traveling all over his body along his meridians.

This trace of energy gave Xiao Yan an extremely familiar feeling.

After hesitating for a while, Xiao Yan escaped a dagger from the storage ring, and then lightly scratched his fingers.

Sure enough, at the moment when this wound appeared, the trace of energy sent back by Hei Yan rushed over excitedly like a dog catching a frisbee, and then the wound on his finger healed at a speed visible to the naked eye.

This situation made Xiao Yan can't help but think of the previous scene in the underworld, when after Hei Yan burned the soul bodies, there was also a bunch of pure soul power that was fed back to nourish his soul power.

At this moment, his soul power had reached a new level, otherwise he would not dare to try a higher-level elixir easily.

"Is there no Void Devouring Flame character? That's right, after all, this black flame is re-transformed with the Dou Qi transformed by the Void Devouring Flame, and the soul body can be devoured, and it is normal to devour a medicinal herb, that is, under the deliberate guidance and refinement of itself, it will only devour the essence part. Xiao Yan understood, and then thought about it.

That didn't seem like a bad thing, maybe he should use the black flame in a different way.

Xiao Yan began to refine the Blood Condensation Grass again, this time, he did not manipulate Hei Yan to refine what he wanted to refine in the Blood Condensation Grass, but directly began to use Black Yan to devour those impurities that he didn't want.

Five minutes later, a box of powder as pure as white as snow was packed into the jade box.

Sure enough, his idea was right, Hei Yan inherited from the characteristics of the Void Devouring Flame, which made his way of refining medicine change dramatically.

The refining method has changed from extracting the essence part at the beginning to directly incinerating the impurity part.

And this kind of burning is under Xiao Yan's own control, and he can decide for himself what to burn and which to let go.

The direct effect of this is that as long as Xiao Yan knows enough about the herbs, he can directly incinerate all the things in the herbs that he doesn't need, leaving only what he wants.

"Just the Dou Qi Flame that was transformed is so miraculous, how can the real Void Devouring Flame be so powerful?" Xiao Yan sighed lightly, but it was a pity that the Void Devouring Yan was always unwilling to respond to himself, otherwise he would really soar into the sky.

Putting away this thought, Xiao Yan, who had found the right way, started refining the medicine again, and this time the healing medicine refining went extremely smoothly.

In the end, as the essence extracted from more than a dozen different medicinal materials was fused into a ball in the alchemy furnace, a faint scent of Dan incense floated out of the Dan furnace.

"Is there a danxiang that will only appear in the four pins of pills? Gee. Xiao Yan shook his head.

Danxiang, the symbol of the four pins of pills, many alchemists will even judge the quality of the pill by the strength of the pill when the pill is baked.

However, of course, he would not arrogantly think that he had already refined the fourth-grade elixir, in fact, this healing pill was not even a third-grade pill, it could only be regarded as the top of the second-grade.

The reason why there was a faint danxiang was because the quality of the healing medicine refined by Hei Yan was too high, far exceeding the level of normal second-grade pills, so this kind of anomaly appeared.

Putting away the healing medicine, Xiao Yan turned his head to look at Yun Yun, who was still in a coma, and his eyes revealed regret.

Although because of Nalan Yanran's relationship, he had no good impression of the domineering Yunlan Sect, but such a strong man of the Douhuang was inexplicably shot to death by the people of the ancient clan because of himself, and he was very unhappy in his heart.

"It's a pity, I have only been an alchemist for a long time, and my own level is not high, this second-grade top-notch healing medicine is already my greatest effort, I heard that when you calmed the beast tide, you also inadvertently helped the little medicine fairy, I hope you can live."

Feeding the healing medicine to Yun Yun who was unconscious, Xiao Yan walked out of the cave indifferently, he was about to go out hunting a demonic beast for food.

He hadn't seen meat in the underworld for a long time, and he was almost starved to death.