In addition to the cultivation class, Li Xuetian was most interested in the Dan class, especially the combination changes between various pharmacology, which made him particularly fascinated.

The teacher of Dan's class is named Shao Yancheng, who is dressed plainly, cleanly, gentlely, and speaks in a very soft and beautiful voice. At present, he only teaches his disciples to recognize medicine and Dan, and only then will he teach pharmacology and alchemy.

When Li Xuetian went to the library pavilion, in addition to watching the tasks assigned to him by Chen Lao, he would also find time to find books related to pills to read, perhaps because of his interest, his memory of the knowledge of pills was very good, and he almost remembered it.

However, there are more than 10,000 kinds of pills in the world, and various pharmacological changes are even more unpredictable, the more Li Xuetian knows, the more he finds that he is ignorant.

I remembered that Wei Wei who met in the Qingyan Mountains that day, she was a healer, but she was also a poisoner. She mixed a strange toxin into the venom of the nest silk, causing people to ignore it for a while, and then poison it at the critical moment, which played a surprise role.

It's a pity that her cultivation was not enough, and she died in the hands of Huang Yu.

Li Xuetian couldn't help but think that the purpose of a doctor is to treat diseases and save people, and the medicine is naturally simple and effective, but the poisoner is different.

Poison is used to hurt people, but the most powerful poison is not as fast as the sword kills, so it is often not a good poison because it is poisonous, and it is terrible to be unpredictable.

Medical practice is simple, poison is treacherous, this is what Li Xuetian understands, it is just eight words, but it opens the door to a new world for him.

Some drugs are inherently non-toxic or slightly toxic, however, pharmacological reactions between them can be highly toxic. Therefore, Li Xuetian had some ideas: there were hundreds of healing pills most commonly used in the Martial Refining Realm, which had the effects of treating external injuries, internal injuries, concentrating and so on, and some of them would be highly toxic when mixed with other things, and he could take advantage of this.

The first is poisoning. For example, that day in the Zhushan Temple, the Taoist master used a kind of smoke to charm Li Xuetian, at this time, the cultivators usually chose to take the Qingxin Pill to resist, if they took advantage of their habit, using a seemingly ordinary smoke, and once they encountered the Qingxin Pill, it would produce a highly toxic poison, and it was really unaware of the fact that it would take people's lives.

After all, most people are not doctors, and even if they understand some pharmacology, they will definitely not know much.

The second is to bury poison. In fact, this poison is not uncommon, and when used in a weak dose, it is not easy to detect, and over time it makes people terminally ill and incurable. For example, if you refine a poison with a disease similar to typhoid fever, it will deceive the eyes of ordinary healers, and it will be too late to discover that it is unusual.

In addition to the poison itself, the method of poisoning can also be exquisite, and there are thousands of tricks, which are really difficult to prevent.

Although Li Xuetian has an idea, his exposure to the pill is still too short, and his understanding is not enough, and he has not even learned the least alchemy, if he wants to refine a real poison, he still needs to learn a lot of things.

The cultivation life that he had originally thought was boring began to become interesting, and after he had pursuits and goals, he longed for twenty-four hours a day.

......

"What are you doing these days, why don't you always see people?" Zhu Qingyun came to Li Xuetian's courtyard with two bottles of wine and some snacks.

"I'm studying pharmacology, and there are too many books to read. ”

"Drink two glasses, don't read books and look stupid. ”

"Hmm"

"You gang leader, you really don't care if you say you don't care about anything!" Zhu Qingyun complained while pouring wine.

"I said it a long time ago, otherwise I wouldn't have done it. Li Xuetian spread his hands.

"Yes, our Qingtian Gang now has more than one or twenty people, barely on the table. ”

The two had a drink, and Zhu Qingyun continued: "Didn't you say that you still want to find Gu Yuming to learn the sword technique, why don't you go?"

"She's busy cultivating, I'm embarrassed to bother again. ”

Li Xuetian went to her a few times and learned a few tricks from her, but it may be a talent problem, he really can't learn knife skills.

Gu Yuming didn't say anything, but he was a little frustrated and didn't want to learn much......

"I only met her yesterday. Zhu Qingyun glanced at Li Xuetian and said, "She also asked where you have been these days, and she doesn't look like she bothered you at all." ”

"Really, I'll go back to her tomorrow. ”

At first, Li Xuetian planned to pull Gu Yuming into the gang, but she was unwilling, saying that she just wanted to cultivate with peace of mind and was not interested in anything else, so he didn't force it.

On weekdays, she either cultivates hard in the courtyard, or she competes with others in the martial arts arena, and has little leisure time, Li Xuetian does have a feeling of disturbing her every time she goes to her, and compared with her, he is a little ashamed of self-harm.

"You fox is with you every day, can you understand the contents of the scroll?" Zhu Qingyun quipped when he saw Xiaoxiao lying on the bookcase.

The fox sniffed and looked up, and then closed its eyes lazily, it didn't like the smell of wine, it felt unpleasant, but it didn't understand why Li Xuetian drank that thing, was it delicious?

"It's psychic now, and it understands a little bit of human speech. Li Xuetian reminded.

"Oh, so fast?"

"There is abundant spiritual energy in Xinming Valley, and it is reasonable that it can channel so quickly. ”

"Anyway, every time you take it to class, the tutor doesn't say anything about you, I haven't seen anyone listen to the class and bring a spirit pet. ”

"Xiaoxiao has always been very well-behaved, and she looks more serious than me in class, so the tutor doesn't care about it. ”

In the first few days when he came to Xinming Valley, Xiaoxiao never left Li Xuetian's arms, and now he is slowly familiar with the environment in the valley, and occasionally goes out for a walk, but he is still not very close to people, and even Zhu Qingyun can't touch it.

"It's in your arms, and it's all about us. ”

"Hahaha, maybe you're too ugly!" Li Xuetian joked.

"Fart, I'm going to take a walk around the women's hospital, they have to look at me a few times!"

"yes, who are you hooking up with now?"

"......" Zhu Qingyun said embarrassedly, "I'm not busy with the gang's business, and I don't care much about anything else." ”

"If you don't care, what are you doing in the women's hospital?"

"I'm not here to develop a few female members of the gang and balance the yin and yang!"

"Why did you suddenly think of asking me for a drink when you're fine?" asked Li Xuetian Zhengse.

Zhu Qingyun groaned slightly, sighed and said, "I won't trouble you for small things, but there is one thing that I can't do, and I need you, the helper, to come forward." ”

"Tell me, what's wrong?"

"Do you remember Fang Shiyong, the hall master of our martial hall. ”

"Remember, how about him?"

"He betrayed us and joined the Stars Gang. Zhu Qingyun was a little angry, "I hate betrayal the person the most in my life, but I can't do anything with him, let him be so arrogant, I can't swallow this breath!"

Li Xuetian frowned, he didn't expect Fang Shiyong to do such a thing, wasn't he afraid of being looked down upon?

"I'll keep this account down for now, but there's one thing I want you to get back for me. ”

"Blue Sky Sword?"

The Blue Sky Sword is the name of their gang token.

"Yes, I wanted to duel with him and win the Qingtian Sword back, but he understood my strength and refused my challenge, and the others in the gang were not sure of beating him, so I thought you could go. Zhu Qingyun pleaded.

In any case, he would not allow the Qingtian Sword he had built to fall into the hands of traitors, even if he was forced to violate the rules of the sect in the end, he would have to beat Fang Shiyong and take the Qingtian Sword back.

Li Xuetian nodded: "Give me a night to prepare." ”

"Good!"

If it was a battle of life and death, Li Xuetian would definitely be sure to kill Fang Shiyong, but there were too many restrictions in the competition, not to mention the sevenfold martial arts, even if it was against the sixfold martial arts, there was not much chance of winning.

In the time that Gu Yuming taught him, he had already understood that his exercises were full of flaws, but with one move, it was really difficult to be sure of victory.

Fortunately, during this time, Li Xuetian had some understanding of the spiritual vein, and made a small attempt, he used his control of the spiritual energy to circulate the spiritual energy under the skin of his right arm, and temporarily forged a spiritual vein to store the spiritual energy, which was much easier than the way to use the mind to retain in the past, and it could store more power.

He called this forged spirit vein the Lin vein, according to the previous few tests, it could probably store about half a spirit crystal's strength, and the battle could only last a quarter of an hour, but it was more than enough to deal with Fang Shiyong.