Picking up a high-purity poison pill that had just been successfully refined, Zhi Lingqi carefully observed and probed, and finally confirmed that the quality of the three poison pills refined this time was close to perfect, otherwise it would not be possible to have a smooth and round face, and it could also have a faint danxiang.

"Hahaha" I didn't expect to change the habitual thinking of the ancients, use scientific and technological means, and simplify the operation procedures, not only completely eliminating the aftermath of damaging the herbs, but also easily refining the almost perfect level of elixir, and the spirit qi is naturally extremely happy.

After laughing happily, Zhi Lingqi's character of pursuing perfection was once again revealed, and the next thing he considered was that in the later stage of refining the pill, in the process of refining and concentrating the juice, there was still a lot of medicine lost with the evaporation of water vapor, if this part of the lost amount of medicine could be retained, it was estimated that the same amount of herbs could be refined The number of pills would increase.

After a little thought, Zhi Lingqi thought of the water purification technology in the previous life, using the characteristics of the molecular structure of water much smaller than the molecular structure of other substances, using the microfiltration grid, only allowing water molecules to pass through, and other substances to remain, so as to obtain high-quality pure drinking water.

With this microfiltration method, to remove the water in the liquid medicine, you can completely do not need to simmer to concentrate the juice, and you can also directly enter the last step of the elixir refining, and use the fire spiritual power in the spiritual energy to bake and round, so in the process of simmering and concentrating the juice, the part of the medicine lost with the evaporation of water vapor can be completely retained and refined into the elixir.

After determining the feasibility of the method, Zhi Lingqi immediately began to test it step by step, first using the method of spiritual energy extrusion, grinding and impurity removal filtration, after obtaining the pure medicinal liquid, and then filtering the water again, all the effective medicinal substances that remained were pure and pure in the form of paste.

After fully fusing the blood cleansing vine, yin-dispelling grass, insect-eating branches, early yang flowers and solid spirit roots, five kinds of six parts of paste-like medicinal substances, Zhi Lingqi directly used his own fire spiritual power in his spiritual energy to wrap and bake the fused ointment, and by the way, it was rounded.

After getting five mellow and fragrant poison removal pills, Zhi Lingqi showed an extremely satisfied expression.

After a short rest, Zhi Lingqi refined ten poison pills in a row using this method, each time it was five perfect pills, a total of fifty-eight full-grade poison pills had been refined, and there were also eight medium-quality poison pills containing 30 percent impurities.

In this green valley where monsters are rampant, the poison pill is the basic guarantee that he is not easy to be poisoned secretly, he is about to set off for life and death training, and it is inevitable to be injured in a fight.

These three kinds of pills are extremely useful primary pills in the next step of training, the types of herbs required are few, the grade is low, and the medicinal properties of the herbs are mild, and there is no conflict between the medicinal properties of the herbs, it is easy to refine, and it is also the most basic pill for practicing hands.

Whether it was for his own safety in the future, or for a more proficient mastery of alchemy skills, Zhi Ling used the same method to refine hundreds of pills of the Hemostatic Muscle Pill and the Bone Renewal Pill, and then packed up the Dan furnace and the remaining herbs, turned around and left the grotto.

Came to the cave composed of a layer of lower grade spirit stones on the grotto, Zhi Lingqi took out the stone axe behind him, slightly transported some spiritual energy and began to mine the spirit stones on the cave wall, and after splitting out hundreds of axes in a row, Zhi Lingqi found that there were some abnormal conditions on the stone axe.

Zhi Lingqi knows that the hardness of the stone axe is much higher than the hardness of the spirit stone on the cave wall, so he chose the stone axe to mine the spirit stone, but the key is that after the stone axe is heated more than 100 times in a row, it stands to reason that the hardness should decrease, but he found that the hardness of the stone axe in his hand has not decreased, but the hardness has also increased.

After discovering this abnormal situation, Zhi Lingqi naturally stopped mining spirit stones, without him, Zhi Lingqi had already obtained more than two million medium-grade spirit stones and tens of thousands of high-grade spirit stones in the small tribe's treasury, so he was not very concerned about the low-grade spirit stones here, but out of curiosity, he immediately wanted to figure out what was the root cause of the stone axe's abnormality?

Holding the stone axe in his hand, he tried to split a few axes in other directions of the spirit stone wall, and felt that it was really sharper than when he first split the stone wall, as if the spirit stone on the stone wall would become soft when it encountered a hot stone axe.

Zhi Lingqi thought about it again and again, he believed that there would be no problem with the spirit stone, and the problem should be on the stone axe, so Zhi Ling activated his heavenly vision and began to investigate the stone axe.

After careful exploration, it was found that the stone that makes up the stone axe is not only very fine and extremely solid, but also the stone of the hot part is mixed with a very small amount of tiny crystal sand with red light, and the more calorific the place, the stronger the light of the crystal sand.

After understanding that the stone axe's interior could glow due to the increase in heat, Zhi Lingqi began to work hard to find the origin of the crystal sand and the memory of the relevant situation in his inheritance memory.

Fire crystal sand, a derivative of the fire source spirit, a rare fire attribute material in the world, softens when cold, and hardens when heated, it is one of the best materials for refining weapons, as long as a small amount of fire crystal sand is added to any weapon, not only the hardness increases and the strength increases, but also does not fear the heat.

The inheritance memory of Zhilingqi also shows that the Xiansheng Pangu's mountain axe is fused with fire crystal sand, but there is no fire crystal sand in the mountain chisel axe of Zhilingqi, and if a small amount of fire crystal sand can be integrated into the mountain chisel axe, its quality will definitely go up a notch.

There is another characteristic of fire crystal sand, that is, where there is fire crystal sand, water vapor is difficult to invade, and all things do not grow, and it is not that fire crystal sand restricts the growth of organisms, but because water vapor does not exist, living things have no living environment, so all things do not grow. Everyone knows that water is the origin and survival of all life, and there will be no life without water.

The stone axe in his hand was made by collecting special rocks from the underground cave in the valley after taking the elixir to improve his cultivation, which shows that the cave may be a rare fire crystal sand mine.

The reason why the cave is so dry and there is no flora and fauna in the cave is probably because the cave rock contains fire crystal sand. In addition, the cave entrance is too tightly hidden, and generally larger monsters and animals can't find the existence of the cave at all.

Small animals and moths and other creatures are generally extremely sensitive to fire-based substances, and they are particularly afraid, even if a few different small animals strayed into them, they would die because of the lack of water and food.

As for the fact that Zhi Lingqi was able to persist in cultivating for half a year in the underground cave of that valley, first of all, it was because Zhi Lingqi was still in the form of a soul body, and his demand for water was close to none, but the main reason was that he was now a successful atavistic Chaos Spirit Vein Body, and he could simply ignore the Fire Source Spirit born from Chaos, not to mention that Fire Crystal Sand was still a derivative of the Fire Source Spirit.

"It's gone! Now I'm really hairy! Zhi Lingqi jumped up with joy, thinking that before he left the underground cave in the valley, when he used the mountain axe to cut the stone axe, his intuition felt the abnormality and strangeness in the cave, and at that time he had the idea of returning to explore it in the future, and he really didn't expect that he would return so soon.

However, this matter is not in a hurry, and now that it has been delayed in the grotto for seven or eight days, it is still the most important thing to mine more spirit stones.

Next, the spirit used for more than two and a half months, and almost mined the secret lower grade spirit stones in the cave, and the rest were only mixed stones with heavy impurities and no mining significance.

After inspecting the cave again, he searched the up, down, left and right of the cave, and even after he opened the Heavenly Eye to explore, he didn't find any more spirit stones, and it was not until Lingqi put away his thoughts to explore whether there were any higher-grade spirit stones.

In fact, he also knew that since the small tribe had settled here, it was impossible to allow its high-grade spirit stones to exist, but if they were not mined, leaving the low-grade spirit stones unmined, it should be because the enemy came too quickly and had no time to mine them, right?

The medium-grade spirit stones, high-grade spirit stones, pills, weapons, elixirs and refining materials in the small tribe's cave warehouse should be items that the small tribe has no time to take away, or all the combatants of the small tribe have died in battle, and the old, weak, women and children are unable to take away.

After a rough estimate, the amount of lower-grade spirit stones he has mined now should be no less than 30 million, plus more than one million medium-grade spirit stones obtained in the small tribe's treasury before, tens of thousands of high-grade spirit stones, a large number of pills, elixirs, refining materials, a lot of various weapons, two large stone cabinets for fire refining fuel fire stones, and many spirit stone tablets that record magic recipes.

……

After a lapse of three months, Zhi Lingqi quietly returned to the valley where the herbs were everywhere again, and the small basin of the valley without herbs seemed quieter than before, and even felt a little bleak and silent.