Chen Hui was startled by the wizard's action.

Fortunately, the wizard just tested the temperature inside the cauldron, instead of really reaching for the inner wall of the cauldron.

It seems that the temperature in the cauldron is not high enough. After feeling the temperature in the cauldron, the wizard took back his hand and put some firewood under the cauldron.

The alchemist, who added firewood this time, didn't know what material it was. After putting it into the fire, it immediately burned like no firewood was ignited.

However, it's no surprise that there are many trees in nature, which are very oily. The firewood cut down from these trees has high flammability and high burning heat.

At this time, this kind of firewood should be a kind of firewood with high oil properties.

After a short time, the wizard reached out again to feel the temperature in the cauldron.

This time, the temperature should be right. The wizard immediately extended his aura of wood and cleaned the inner wall of the cauldron with the invisible aura.

Clearly visible, many dust like objects, with the wizard's action, flew out of the cauldron furnace, and then along the invisible aura running direction, fell to the ground far away from the cauldron furnace.

"That's the blowing in, isn't it?" Chen Hui asked at this time.

The so-called blowing in is to clean up the materials left in the cauldron after the last alchemy. In addition, if the alchemy is only done once a month, dust will inevitably fall into the cauldron. Actually, blowing in is just a name for cleaning the cauldron.

Now that he has heated the cauldron furnace and cleaned up the dust and the materials left by Alchemy, Chen Hui will naturally ask this question.

The emperor nodded silently and motioned to Chen Hui to continue to look.

At this time, the alchemist went to the shelf on one side of the alchemy room and stood. He opened a box on it and took out a white thing the size of a quail egg.

"Neidan?" Chen Hui asked at this time.

The green emperor nodded silently.

Chen Hui doesn't ask any more questions. This white inner pill is the size of a quail egg. Its shape is not round, but is really similar to that of a quail egg.

The white is not pure white, but closer to gray.

Since it is the inner elixir, it is naturally the inner elixir of some animal.

Chen Hui can't help but frown. The animal that lost Neidan is afraid to be dead, isn't it?

Qingdi seemed to know what Chen Hui was thinking. He asked, "some of the inner elixirs used in alchemy were obtained by our wood witches while hunting, and some were easily exchanged."

Chen Hui nodded silently, and understood the meaning of the emperor. These internal elixirs were basically the things he got by cuddling grass and beating rabbits, rather than the alchemy materials he was looking for.

At this time, the green emperor said: "however, you must also be very clear that there are not many cases of Neidan in the hunting prey. Most of the time, the alchemists go out to look for Neidan, but the alchemists will not kill, but will release after taking out Neidan."

"I see." Chen Hui nodded and said.

At this time, the green emperor lowered his voice and said, "this is one of the reasons why the wizard's Alchemy can only be the sixth level cultivation!"

Hearing this, Chen Hui looked at the emperor and knew that there must be something else.

The green emperor continued: "this way of taking out the animal's inner elixir without killing is a kind of skill. After practicing this skill, the wizard's cultivation will stay in the sixth level forever, and there is no possibility of becoming a seventh level wizard any more!"

"Why?" Chen Hui asked.

"It's a protection for alchemists." Qingdi explained: "the sixth level wizard is already very powerful. The improvement of each level's cultivation is not equal to the increase of strength. If you become a seventh level wizard, you can capture animals with inner alchemy, which is even more powerful. The inner alchemy of animals is equal to their cultivation."

"That is to say, the alchemist can only capture the animals with five groups' accomplishments and less than six levels' accomplishments relative to human beings to obtain their inner elixir?" Chen Hui asked in a low voice.

"Exactly." The green emperor nodded his head and said, "when it comes to the animals corresponding to the seventh level cultivation of human beings, they are already very fierce. The wizard or warrior of the seventh level cultivation is hard to be his opponent. They need to work together to subdue or hunt. This also ensures the safety of the alchemy wizard when he goes out to look for the alchemy materials and meets the animals corresponding to the sixth level cultivation of five human races, They need to work together to subdue them. When they meet alone, they need to avoid them. When they meet animals that correspond to human's seventh level cultivation, they can escape directly. They don't have to do what he wants

"How do they know what kind of accomplishments animals encounter?" Chen Hui asked.

"This is just the peculiarity of this skill." The green emperor replied, "this skill can not only sense the hiding places of animals with inner alchemy, but also sense the accomplishments of the five human races."

"Alchemy uses inner alchemy, which can't change the nature of plunder." Chen Hui shook his head and said: "animal cultivation is not easy. I don't know how many years of hard work, but in the end, I made a wedding dress for my family."

"If we really want to say the essence, isn't hunting also a kind of plunder?" The green emperor said, "the grain we grow is their seeds, isn't it also a kind of plunder?"

"That's true." Chen Hui said helplessly.

The ability to survive is to plunder, whether it's human beings, animals or plants.

People eat grains, as well as all kinds of meat, in fact, plunder the lives of animals and plants, give their own life to supplement nutrition, to maintain human survival.

Carnivores will prey on herbivores, which is also a kind of plunder.

Herbivores eat grass and plunder the life of plants. As for plants growing on the ground, they absorb the nutrients of the earth, which is also a kind of plunder in essence.

However, whether it is human beings or animals, they will become the fertilizer of the land after death, making compensation for the land.

Any life cycle, that is, the process from life to death, is actually a process of plunder and repayment.

"The green Emperor just said that this kind of skill is one of the reasons why alchemists can only stay in the sixth level of cultivation?" Chen Hui asked!

"Yes, this kind of skill not only protects the alchemists from looking for alchemy materials, but also limits their cultivation. They can only cultivate in the sixth level, which can be seen as advantages and disadvantages. However, combined with another reason, it can be seen that the purpose of this kind of skill is also very obvious." The green emperor said, pointing to the bronze tripod, said: "another reason is the tripod furnace."