During the process of adding the medicinal powder, Lin Xiaofei felt as if his mental energy was being bound by an invisible rope, pulling his mental energy into the alchemy furnace.

At this moment, he finally understood why the Compendium of Herbs required the use of a spiritual alchemy furnace.

As he concentrated and slowly released his spiritual energy into the alchemy furnace, an unseen force gathered his spiritual energy at the center of the furnace and injected it into the unformed pill.

An ordinary alchemy furnace simply cannot gather a person's spiritual power.

With a serious expression and meticulous movements, he put the last ingredient of medicine into the alchemy furnace and then dripped a few drops of cool water into it.

However, as he dripped the cool water droplets, his mind wavered slightly.

As he continued to channel his mental energy, the pulling force had disappeared.

Although he went through the entire process of making pills in one go, he knew in his heart that the first attempt to make pills had failed.

"Is this the process of making pills?"

"This alchemy is quite difficult; one slip and all your efforts are wasted, and this batch of medicinal herbs is wasted."

Lin Xiaofei looked at the dark pills in the alchemy furnace and recalled the process of refining the medicine. When he put in the first type of powder, it seemed that the amount of powder was a little too much. Although the refining technique was correct, the color of the pills was obviously wrong.

The first batch of pills was completely useless.

"continue!"

After calming himself down, Lin Xiaofei focused his attention again.

When he started refining the pills, he didn't expect to succeed on his first try, and he was prepared to fail three times first.

The failure of the first batch of pills was normal and did not discourage him.

Then, the second batch of medicine was refined.

Having learned from his previous experience, Lin Xiaofei remained focused. At this moment, all he could see was the powder being added, and he had to concentrate throughout the entire process.

He glanced at the flames beneath the alchemy furnace, then picked up the first type of powder once more and slowly fed it into the furnace. He then channeled his spiritual energy into it, converging it into the unformed pill.

In an instant, the feeling of slightly heavy mental energy rose once again.

Lin Xiaofei slowly and continuously fed the medicinal powder into the alchemy furnace.

When he added the second type of powder, he added too much, and the spiritual light gathered in the furnace immediately dissipated.

"It failed the second time."

Lin Xiaofei took a deep breath, picked up the pills from the alchemy furnace, threw them onto the black soil as nourishment, and then began alchemy again.

Refining stamina pills is the simplest type of medicine, and he believed that if he refined them a few more times, he would definitely succeed.

First batch, second batch, third batch...

Before he knew it, he had already refined the eighth batch of pills, but they were all useless.

Just as Lin Xiaofei was preparing to refine the ninth batch of Strength Pills, he suddenly felt some pain in his mental energy, and his eyes seemed to flash with countless stars, causing him to become somewhat dazed when looking at the alchemy furnace.

"My mental energy has been depleted!"

When studying the "Brief Record of a Hundred Medicines," it was already mentioned that ordinary people could only refine three batches of pills before becoming listless or exhausted.

Lin Xiaofei refined eight batches of pills, which shows that cultivating the Dew True God Technique has greatly increased his spiritual power and enhanced his endurance.

Although he could refine five more batches of pills than the average person, he still failed to refine even one batch.

Moreover, the alchemy furnace he used was quite intelligent, increasing the success rate by 10-20%, which reduced some of his troubles.

After resting with his eyes closed for an hour, Lin Xiaofei felt his mental energy had recovered and returned to the alchemy furnace.

Having experienced eight rounds of alchemy, he gained considerable insights into the art.

Each failure revealed different mistakes, and after some adjustments, he has now figured out the entire process of refining the stamina pill.

At this moment, he was full of confidence, believing that he would soon be able to refine a batch of pills.

Concentrating his efforts, Lin Xiaofei rekindled the fire, picked up the first type of medicinal powder again, and slowly fed it into the alchemy furnace.

At the same time, Lin Xiaofei gradually poured his mental energy into the powder in the alchemy furnace, controlling the amount of powder with both hands and pouring it in little by little. The entire process was continuous without any pause.

Just as the last batch of powder was about to be sent into the furnace, the same mistake as before was made again.

Previously, when Lin Xiaofei was adding the last type of powder, he was supposed to be adding the same amount of powder at the same time. However, he didn't expect that the amount of powder he poured into the furnace would be a little too fast, which caused the powder in the furnace to be heated unevenly.

Therefore, adding the medicine even slightly too quickly can directly lead to the failure of the medicine making process.

Then, Lin Xiaofei continued refining the medicine.

This time, Lin Xiaofei was extremely serious and controlled his alchemy techniques very well. The whole process was completed smoothly.

"The pills were successfully made this time."

Lin Xiaofei was overjoyed and quickly looked into the alchemy furnace.

There were two small pills. One of them had a very faint luster on its surface, while the other was the wrong color and was obviously a defective pill.

Lin Xiaofei reached out and picked up the faintly glowing pill, brought it to his nose, and smelled it. It had a faint medicinal fragrance. Compared to the discarded pill, the two smelled very different; one had a medicinal aroma, while the other was odorless.

Moreover, judging from the luster on the surface of the pill, he could clearly sense a faint trace of spirituality within it.

He picked up another discarded pill and compared it to the first one. The colors were similar, but the pill was dull and lacked any vitality.

"We've finally managed to refine a pill."

Lin Xiaofei was overjoyed.

Without saying a word, taking advantage of the excitement of successfully refining the first pill and the fact that he still had mental energy, he began refining pills again.

The first one, the second one, the third one.

Lin Xiaofei stopped when he successfully refined the third one.

"My eyes are starting to see stars again. My mental energy is insufficient. I can't continue refining. Otherwise, this batch of pills will definitely be wasted. There's no need to waste any medicinal materials."

Feeling that his vision of the alchemy furnace was blurry, he decided to stop.

He had just experienced a mental pain that almost made him lose his balance, and he didn't want that to happen again.

However, in these several attempts to refine pills, after successfully refining one pill, the third and fourth batches each produced one pill.

He was very excited to find three stamina pills in a small porcelain bottle.

"The method of alchemy is said to be a very low-level magic."

However, I've already refined three stamina pills. Why don't I take one out and try it to see how effective it is?

Lin Xiaofei felt a glimmer of hope.