Immortal cultivation starts with copying.

The demon baby is just like a human's Nascent Soul, with all its hands and feet intact, but at this moment its eyes are tightly closed, as if it is asleep.

Chen Yunhao took a closer look. The talisman on the demon baby should also have a sealing function, which is also to prevent the demon baby from waking up and escaping.

When Chen Yunhao was in the Endless Sea, he had used demon pills to refine spiritual pills, so he was not unfamiliar with the specific refining method.

Although the idea of ​​refining the elixir using the demon infant was good and the formula was ingenious, Chen Yunhao estimated that it could only barely reach the fourth level.

This elixir is called Rejuvenation Pill. It is not an elixir for improving cultivation, but for repairing damaged Dantian and Nascent Soul.

“A big deal…!”

Chen Yunhao closed the brocade box. He was able to get the recipe for the fourth-level elixir and the fifth-level demon baby. This was definitely not something that one person could do. There was a lot of tricks behind this!

"Fellow Daoist Zheng, I'm sure you know the rules of alchemy. You need to prepare at least two or three of each kind of spiritual medicine and materials. Now there is only one demon baby, so I can only start one furnace. I can't say whether it will succeed or not. I can't say for sure. Just do your best..."

This was Chen Yunhao's first time to refine a fourth-level elixir in the true sense. Moreover, there was only one spiritual material, and no one else would be 100% sure.

"Master Chen, just go ahead and do your best!"

The fifty-year-old monk named Zheng, with a serious expression, bowed to Chen Yunhao.

"Okay, Fellow Daoist Zheng, please be patient and there will be results in a month."

One month is enough to decide whether it will succeed or not.

Chen Yunhao instructed Qin Luoying to settle the cultivator named Zheng, and he returned to the alchemy room of Tianzhen Temple first.

This time was different from the past. Chen Yunhao took out the recipe and studied it carefully again.

After all, using demon pills or demon babies to refine pills is rare, and Chen Yunhao's experience is slightly insufficient, so he still needs to go to the floating island for a rehearsal first.

After his consciousness sank into the ancient mirror, before he could reach the floating island, a pulling force pulled his consciousness to the spiritual island.

"Senior, what does this mean?"

Chen Yunhao asked the weapon spirit in confusion.

"Bringing that demon baby to me is just the right thing for me to regain some strength..."

The spirit of the weapon opened its eyes and went straight to the point.

"This... isn't good. How can I explain to that monk without this demon baby?"

Chen Yunhao's expression froze. Even if he failed to refine it in the end, he couldn't fool people and let someone intercept the raw materials halfway.

"Who said you can't make pills? You can make them with these..."

As the spirit of the weapon spoke, it stretched out its hand, and four spiritual herbs fell in front of Chen Yunhao out of thin air.

“Could this be…!”

Chen Yunhao pointed in surprise, but before he could finish, the spirit of the weapon introduced them to him one by one.

"The white one is Hehe grass, the pink one is Tianqinglan, the green one is Di Tenghua, and the gray one is Qiannian Kudzu grass..."

These four spiritual medicines are exactly the same as the four spiritual medicines in the rejuvenation pill, without any error.

With these four elixirs, there is naturally no need to use the demon baby, and it will be easier for Chen Yunhao to get started.

"Senior, do you also know about spiritual medicine?"

Chen Yunhao felt that the spirit of the weapon had a lot of things hidden in its mind that it didn't tell him, such as the magical medicine on this spiritual island.

"I just happen to know these four..."

"Alright then, just pretend I didn't ask...!"

If someone doesn't want to talk, there must be a reason, so Chen Yunhao didn't ask any more questions.

Chen Yunhao picked up four spiritual herbs, looked at them carefully, and even broke off a small piece and put it in his mouth, savoring it slowly.

This is a process of drug testing, in which he needs to understand the medicinal properties and pharmacology of each elixir so as to facilitate his next step of refining.

After becoming familiar with the medicinal properties, Chen Yunhao arrived on the floating island and began repeated trials.

It is indeed not easy to refine a fourth-level elixir. Fortunately, I had related experience before. Although it was a fake fourth-level elixir, I have to say that it was still of some help for this refining.

From the time it takes to preheat the alchemy furnace, you have to rely on your own exploration and summary, to the length of time each spiritual medicine stays in the alchemy furnace.

These are the lessons learned from every failure.

Fortunately, Chen Yunhao has the magical floating island, which allows him to continue his trials without limit. The floating island is the main reason why his alchemy skills have reached what they are today.

I don’t know how many furnaces he had refined, but Chen Yunhao was tireless. After each failure, he would summarize the experience and lessons and immediately start the next trial.

Maybe it was more than two hundred times before he finally succeeded in refining one furnace, but only one elixir came out, and it was of low quality.

For Chen Yunhao, who always has high demands, this is no different from failure.

In reality, Chen Yunhao has been on the floating island for twenty days. Given the speed of time on the floating island, it is equivalent to having spent two hundred days on the floating island.

It took a full two hundred days just to refine a furnace of pills, which shows how difficult it is to refine this fourth-level elixir.

In fact, Chen Yunhao's refining of the fourth-level elixir was equivalent to refining a higher level. If his cultivation could be advanced to the Divine Transformation level, it would be 30% to 50% easier for him to refine the fourth-level elixir.

Because the refining of the fourth-level elixir is not just about refining the spiritual medicine and condensing it into a pill. The fourth-level elixir contains not only spiritual power, but also the elemental power of heaven and earth.

So even though Chen Yunhao spent a full two hundred days researching this batch of rejuvenation pills, he didn't make much progress.

At most, one furnace can only produce two pills, and the quality barely reaches the low-grade level and cannot be improved any further.

He understood that it was his own strength that was holding him back, so there would be no results if he continued to practice, and he couldn't force it!

The spiritual consciousness withdrew from the ancient mirror and copied the four elixirs several times.

Although he could refine two rejuvenation pills with his eyes closed on the floating island, in reality, he only managed to refine three pills even after opening three furnaces.

After investigating the reason, Chen Yunhao found that his alchemy furnace was not good enough.

The alchemy furnace he is using now is of mid-grade magic weapon level. It is certainly sufficient for refining third-level elixirs, but it feels inadequate in all aspects for refining fourth-level elixirs.

After this time, I have to find a way to buy a good alchemy furnace. It is true that if you want to be a good craftsman, you must first sharpen your tools!

Chen Yunhao refined all the elixirs he had on hand, but in the end he only got five rejuvenation pills.

The overall color of this rejuvenation pill is gray, which is very inconspicuous, but the pattern on the surface is indeed quite complex.

In fact, this rejuvenation pill is the most basic pill in the spiritual world and one of the easiest pills to refine. It is not considered a high-level spiritual pill at all.

But for Chen Yunhao, it was a breakthrough. This was his first time to truly refine a fourth-level elixir.

I think there is no one in this world who can do what he has done right now.

Once the real rejuvenation pill is refined, the demon baby will be useless.

Chen Yunhao opened the brocade box, and a burst of light emerged from his abdomen and enveloped the demon baby. The demon baby seemed to sense something at this moment, and its small limbs twitched slightly, and then the light flashed and disappeared.