"Old man, I soaked this eagle in this vein stone milk, there will be no problem. ”

"No problem, just clubbing. Old Demon Yan said.

"Huh, aren't you distressed now, isn't it a waste?" Qin Feng said in surprise.

"There's nothing to feel sorry for, I don't need it anyway. Old Demon Yan shrugged his shoulders and said with a smile, "What's more, it's a waste to keep this stone milk here, we don't have several other medicinal materials to match it with now, and it is difficult to make a better elixir, so it is better to use it directly, so as not to cause trouble." ”

Qin Feng nodded, took the Black Eagle to the pool, drank a stomach of stone milk first, and then let the Black Eagle enter the pool. Black Eagle resolutely carried out Qin Feng's order, and when he came to the pool, Qin Feng also jumped out of the milk pool, first poured the stone milk all over the Black Eagle's body, and then pressed its head down, making it drink a lot of stone milk, knowing that it couldn't drink it, let it soak in this pool entirely.

There was not much stone milk left in the pool, but it was enough to cover the surface of the black eagle's body, Qin Feng stood aside, and found that the black eagle's body was exposed to the surface of the pool, so he helped it adjust its position. During the whole process, the black eagle was very well-behaved and obedient, but after a while, it actually fell asleep, and Qin Feng knew at this time that he had fallen asleep in this pool before, which was the reason for this vein stone milk.

The black eagle was asleep in this jade pool, Qin Feng did not waste time, he concentrated on cultivating the Wind Leg Method and the Heavenly Star Technique in the cave, I don't know how long it took, the stone milk in the pool has almost been exhausted, except for a few low-lying stone pits at the bottom, the other stone milk has been absorbed by the body of the black eagle. Looking at the black eagle in the pool, Qin Feng's heart couldn't help but look forward to it, and after practicing martial arts for a while, a wail suddenly sounded, and it turned out that the black eagle suddenly trembled and howled in pain.

Qin Feng had also gone through this stage, and knew that it was the stone milk that had played a role, but now he couldn't help much, so he could only watch from the side, and after the black eagle was in pain for a while, he actually fell asleep again.

At this time, the cave had become extremely dark, far less bright than before, and the light in the cave was all provided by the stone milk in the pool, and the milky white halo filled the whole cave, but now, these halos were no longer so rich, and became very faint.

Time passed more and more slowly, Qin Feng felt for the first time that the wait was so long, and Old Demon Yan seemed to feel Qin Feng's mood as well.

"I taught you a lot of herbology some time ago, I don't know how you have mastered it?" asked Old Demon Yan.

"Remember everything, you can take the test casually. Qin Feng replied confidently.

"Okay, then I'll ask a few questions. As he spoke, Old Demon's palm condensed the illusion of a medicinal herb, "What is this?"

"Dragon's tooth. Qin Feng replied affirmatively.

"Very nice. Yan Lao Mo nodded and said, "Many people think that it is a snake tail grass, but in fact, it is true, but the snake tail grass that has been hot for more than ten years can already be regarded as a low-grade spirit grass, which can neutralize many strong medicinal materials, and is often used in the preparation of low-grade pills, so alchemists like to distinguish it from snake tail grass and call it dragon tooth grass." As for how to identify it, it's very simple. ”

As he spoke, the dragon tooth grass in the palm of the old devil changed, and the stems and leaves were retracted, revealing the ears inside, like long cyan teeth.

He shook his hand lightly and said, "Shake it gently, if its stems and leaves are loosened and weakened, it proves that the fire is not enough, and the snake's tail cannot become a dragon's tooth." ”

Qin Feng nodded and said, "Understood." ”

This knowledge was said by the old man last time, but this time he talked about it again, obviously to deepen his memory again, Qin Feng was still very grateful for such behavior, because he could see that this old man was really teaching himself with his heart.

"What about this...... "Old Demon Yan's palm changed, and a beautiful purple flower came out, the flower was bone-shaped, and the edges were light pink.

"Mandala flowers. ”

"Okay, remember its characteristics, the whole plant of mandala is poisonous, and the seeds are the most toxic, but sometimes this herb is used to prepare pills, but it can fight poison with poison. ”

Immediately afterwards, Yan Lao Mo asked about the names and characteristics of dozens of medicinal herbs, Qin Feng answered them all fluently, Yan Lao Mo nodded with satisfaction after all, and said with a smile: "It is worthy of being my apprentice, it did not disappoint me, you remember these herbs very clearly, you only need to consolidate and practice them in the future, I have nothing to teach you about herbal medicine." ”

"Thanks to Master's attentive teaching. Qin Feng responded politely.

Qin Feng still recognized this old man, and through this period of contact, Qin Feng thought that this old man was a competent master, except for the usual chatter and jokes, Qin Feng still respected him very much.

It is true that Qin Feng's attitude is also extremely upright, and he is also very serious in his studies, but Yan Lao Mo has also used many special methods to teach him knowledge, such as using spiritual power to condense the illusion of medicinal herbs, so that he can distinguish medicinal herbs from all angles, or directly instruct a large amount of medicinal herb knowledge into his memory.

You must know that these methods require a lot of mental power, which is not easy for an already fragile soul body.

Qin Feng also learned the knowledge of herbs, only to find that there was so much knowledge in herbology, if he simply learned from books, the progress would be very slow, and many similar herbs would also be confused in his memory, far less impressive than the Yan Old Demon Sect.

"Herbology, I can't think of anything I need to teach you for the time being, you have almost mastered the most basic knowledge of herbology, let's learn about pathology. ”

"Pathology?"

"Yes, although the warrior is strong, it is difficult for him to suffer from ordinary diseases, and he has a long life. But once a warrior is sick, it is not an ordinary minor illness, and it will be very difficult to treat. Old Demon Yan shook his head slightly, and said slowly, "We'...... Let's start with jade disease. ”

Qin Feng was suddenly a little silent.

Yes, once a martial artist is sick, it is difficult to heal, just like Su Bingyue, she has jade disease, if she does not get reasonable treatment, her body will chill from time to time, and even reach a certain stage, and even fall into a coma for a long time.

When Old Demon Yan saw Qin Feng's expression, he also knew Qin Feng's thoughts, but he still continued to speak.

"There are many different causes of jade disease, but most of them are caused by excessive cold and yin qi in the body, once this symptom appears, the body will chill from time to time, but usually hot sweat, which is a sign of the loss of yang qi and the gathering of yin qi, in such a state, if you do not get timely treatment, the condition will become more and more serious, and in the later stage, you may even fall into a coma from time to time, and even when walking, you will fall into a deep sleep without warning...... Such a state of affairs is very dangerous. Old Demon Yan said slowly.