The raging flames were burning under the Dan furnace, and Xu Yi looked at the Dan furnace intently, constantly calculating the situation inside in his heart.

Now that he is no longer a novice who knows nothing about the Dan Dao, he has the experience of refining the Qi Strengthening Pill and the Realm Breaking Pill, plus he has read some basic Dan Dao books, and his control over the Dan Pill is far stronger than before.

Of course, every time you research a new Danfang, you still need to go through a process. From the strange to the familiar, until the chest is clear. And the most important thing is to control the details, only by perfecting all the details can it be possible to refine high-quality finished pills.

This is already the tenth day of his retreat and his dedication to alchemy. And on the third day of alchemy, he had already successfully refined the lower-grade Qi Gathering Pill.

In three days, according to the description of a pill prescription, you can take out Cheng Dan, although there is also a certain element of luck in it, but it is undeniable that his alchemy technique has indeed been qualitatively improved. I don't dare to say that I entered the house, at least I reached the point of getting a first glimpse of the door.

Details such as the pharmacological changes between more than twenty medicinal herbs, as well as how to deal with them, echoed in his mind.

It is precisely because of his continuous research that he has made great progress in alchemy.

On the fifth day, the Zhongpin Qi Gathering Pill appeared.

On the seventh day, a furnace of high-grade Qi Gathering Pill was accidentally refined.

And today, he had a strong premonition that he would complete his set goal and be able to refine the Ultimate Qi Gathering Pill.

"Hoo ......"

The flames in the Dan Furnace suddenly erupted, as if they were about to engulf the entire Dan Furnace.

Xu Yi next to him didn't care about this, he turned on the blower to the maximum, the purpose was to pursue the extreme heat of this moment.

The fire lasted for several breaths, and Xu Yi's forehead was already covered with beads of sweat.

It's not just hot, it's because you're exerting too much force and you're nervous.

When the fire disappeared, the heat of the Dan furnace began to decrease little by little. After losing the continuous heating of the Dan coal, it was finally time for the Dan furnace to be turned on.

But Xu Yi still silently felt the changes in the Dan furnace, he did not open the lid, but continued to wait, after ten full breaths, his eyes lit up slightly, and then he reached out to open the lid.

And at this moment, the rich medicinal fragrance seemed to have an abrupt more vent, and it couldn't wait to be released from the Dan furnace.

In the Dan furnace, there were twelve pills lying quietly.

Xu Yi picked up one of them and examined it carefully, and after a while, his face showed a look of extreme happiness.

Qi Gathering Pill.

Superb Qi Gathering Pill!

His hunch was indeed right, and after ten days of hard work, he finally completed the refining of the superb Qi Gathering Pill.

Ten days, the effort and hard work of these 10 days of retreat have not been in vain.

During these ten days, he basically spent time in this room, even if it was eating, drinking, and Lazar.

Although Zhang Xinxin is only twelve years old, he is still a person with a big background. But he cooked good dishes, at least he never treated him badly in terms of eating. Moreover, after knowing that Xu Yi planned to retreat into alchemy, she volunteered to act as a door god, and no one else in this courtyard could enter except her.

This is also one of the biggest reasons why Xu Yi was able to abandon many distracting thoughts, concentrate on alchemy and succeed.

However, if other alchemists knew that in this short period of ten days, he could actually complete the research process from zero to something, from the lower grade to the upper grade, and even the best grade, he was guaranteed to be so surprised that his jaw dropped.

In fact, even Xu Yi never thought that he would be able to do this.

In his plan, the time to refine the best elixir was actually a month later. However, at the time of this alchemy, Xu Yi made an extremely astonishing discovery.

That is every time when dealing with the key points of alchemy...... For example, the specific time for the pretreatment of the main materials, the specific time for putting various medicinal materials into the Dan furnace, the size of the fire at certain moments, and so on.

Don't look at these things seem insignificant, but the success or failure of a furnace of elixir is made up of a combination of many of these details.

And whenever he encounters this time, Xu Yi will faintly have a hunch.

It was as if a voice was in the middle of the darkness telling him to do this to achieve the best results.

Of course, he doesn't have a golden finger like "old man" on his body, and the reason why he has such a strange feeling is that he is on the dantian.

Whenever he wanted to make some improvement to the alchemy process, Shang Dantian would produce some extremely faint reactions.

According to the intensity of the reaction, after several attempts, Xu Yi vaguely grasped the law. When he studied the pill according to this law, he was surprised to find that the progress of his alchemy took off like wings.

Such a change exceeded Xu Yi's expectations, but it was precisely because of this magical variable that he could achieve such a shocking effect.

Shang Dantian actually has an effect similar to that of seeking good fortune and avoiding evil, this discovery surprised Xu Yi.

He even wondered if this was a new supernatural power.

When the lower dantian was opened up and the Great Zhou Tian was transported, he obtained a magic power, which could change anything in a big and small way.

So, after the opening of the upper dantian, can you also get a magical power?

It's just that the magic power of the law is explicit, so he can sense it clearly. However, the magic power of seeking good fortune and avoiding evil obtained by Shang Dantian is hidden, which requires him to constantly ponder and try.

Well, all this is just his conjecture, and whether this is the case or not needs to be slowly discussed and consulted in the future.

Of course, in line with it, Xu Yi also refined many medicinal materials in these ten days. Among them, the two rarer materials that are the main ingredients have been discarded countless times, reaching the point where any alchemist can't help but scold a loser.

The two medicinal herbs that Cui Tao brought him had already been exhausted on the first day, but fortunately, he had the magic power of the law phase, and it was also the law phase of mutation, which could make things change as they wished. Otherwise, even if he has a magical premonition of going to the dantian, it will be difficult for a clever woman to cook without rice.

Putting away the twelve top-grade Qi Gathering Pills, Xu Yi had a smile on his face that couldn't be concealed.

He didn't make a foolish move, because for him, if he succeeded once, he was sure that he would succeed countless times.

Although it is still necessary to continue polishing and research to be able to completely consolidate this achievement, the next thing is the water grinding kung fu, which is not worth mentioning.

With a long exhale, Xu Yi looked around and dealt with all the details that might reveal the secret.

Then, he pushed open the door and strode out.

After holding it for ten days, I was also a little depressed, and I should go out to breathe.