After Chu Qing returned to the medicine garden, he knew that he had a great responsibility on his shoulders, and as soon as he thought of the promise he had made to Tang Jing, there seemed to be a hot fire burning in his chest, and his blood was boiling.

In the months since he came back, Xuanwu Immortal Venerable still hadn't come to see Chu Qing, and since he accepted Chu Qing as an apprentice, he had never had a few words of entrustment or advice to Chu Qing. Chu Qing also knew that the head of the house was very busy, so it was no surprise that he had been used to it all these years. He still felt that the old medicine head was good to him, although he always quarreled with the old medicine head, but what the old medicine head taught him was real kung fu, and he had to answer all questions, Chu Qing was very moved.

"Stinky boy, you look down on it, don't pull off the leaves of my pansy, and my purple cloud tail over there, people like drought, why are you watering so much?" Chu Qing heard the old medicine head nagging there from afar.

The old medicine head held a wine gourd in his left hand and a cigarette stick in his right hand, took a sip of wine, and took a sip of the cigarette holder. In the wine gourd is the medicinal wine he has brewed for thousands of years, and he must drink three gourds every day to keep the body alive forever. The tobacco in the cigarette stick was planted by him for 300 years, baked in the cave for 300 years, and finally found a place with the best sunshine and dried it for 300 years before it became the current tobacco.

"Old Medicine Head, when did you call me the Secret Technique of Immortal Elixir Refining? I remember that you said you were going to teach me three years ago. Chu Qing said a little anxiously.

The old medicine head took a puff of cigarette and spit out a circle of smoke, "You have been waiting for three years, and you haven't said anything, since the last time you went to Chutangshan, you have been talking to me about this matter every day since you came back, I am so tired of this forgetful old man, how annoying you must be!"

Chu Qing stopped what he was doing and asked, "Why have I never heard you say that you have amnesia?"

"Ruined. The old medicine head slapped his head, "My furnace spirit pill is still refining, and there was a lack of real fire a few days ago, and it hasn't been added yet, I have to hurry up and take a look!" After speaking, he ran away.

Chu Qing wasn't curious about whether the real fire was true or not, what made him interested was the Earth Spirit Pill, five years ago he had heard about the power of the Heavenly Spirit Pill, and now there was such a new thing as the Earth Spirit Pill, he had to go and see it.

The thatched hut of the old medicine head was very narrow, there were only two beds for the two of them to sleep, a cabinet for the old medicine head's things, and a table for eating, and nothing else. But there are four secret rooms in this small thatched house, one is responsible for fire alchemy, one is responsible for storing immortal herbs, one is responsible for water refining medicine, and one is not even Chu Qing has been there, and it is sealed by the old medicine head, and only the old medicine head himself can enter it.

Chu Qing followed the footsteps of the old medicine head to the secret room of the fire alchemy alchemy, only to see a large furnace surrounded by three fires, and the six large holes around it faintly evaporated a trace of white gas, and he could smell the strong smell of medicine.

"It seems that I am really old and confused, and the samadhi fire here is obviously good here. The old medicine head sighed.

Chu Qing found that the three fires looked the same, but in fact there were slight differences, so he couldn't help but become deeply interested, and asked, "What's the matter with the Samadhi True Fire?"

The old medicine head smiled: "It seems that you have noticed the subtle differences between them, this is your talent, very good." These samadhi fires are the fire in the wood and the fire in the air, and their origins are different and their essence is different, but the process of burning is the same, and the result is different. This is a good thing for alchemy, fire in wood and fire in stone are easy to obtain, and fire in the air requires experience accumulation and technical support. This samadhi true fire cannot be extinguished when it encounters water, and only Qiankun Yulu can extinguish it, how about it?

"I'd say it's amazing. Chu Qing's eyes flashed, "You have to teach me the secret alchemy of the elixir." ”

"Haha. The childlike heart has not changed, and he is clever. The old medicine head tapped Chu Qing's head with his fingers, "You haven't changed much in the past five years! It's just that you look a little serious in front of Xuanwu Immortal Venerable, but it won't last long!"

"I haven't received an education like Tang Jing since I was a child, and I've been like this for so many years. The first fifteen years were played crazy and stupidly, and the last five years were learned from you seriously, which is called the nature of the future. Chu Qing has also learned a lot of cultural knowledge from the old medicine head in recent years, and some idioms and allusions can be used freely.

The old medicine head laughed and said, "Okay, even if you are still intact!" The old medicine head changed his tone and continued, "Let me teach you the secret refining method of the elixir, but you need to rely on your own strength to collect several medicinal materials, what elixir do you want to refine?"

"Tsukidan. Chu Qing said without thinking.

The old medicine head Qi's nose is crooked, the complexity of the refining of the Zhuji Dan is second only to that of the Earth Spirit Pill, the Earth Spirit Pill needs time, and the Zhuji Pill needs all kinds of strange medicinal materials, "Why didn't you kid say that you want to refine the Sanqing Pill!"

"Then what do you say I can refine?" Chu Qing also felt that he was a little anxious for quick success.

The old medicine head thought for a while, "Recently, there are lice on my body that have been harassing me, so you can refine a few Warm Yang Pills for me!

Chu Qing blurted out, "The Warm Yang Pill has the effect of dispelling cold and dampness. It needs to be formulated with three viburnum grass, cold air grass, cross grass, buffalo grass, three-step jumping nine-headed incense and water centipede. ”

"Good. The old medicine head smiled and said that he was very satisfied, "Among them, the water centipede is the most likely to make mistakes, you tell me about the characteristics of the water centipede." ”

"The rhizome is purple, with fibrous roots. The stems are elongated and bald. The leaves are soft, narrowly linear, and vary in length. Capitate, solitary, ovate, green. The bracts are three-lobed, leaf-shaped, connected under the panicle. Spikelets are very numerous, oblong-elliptic, the whole spike falls off after maturity; palet four, scaphoid ovate, ridge without wings, with small spines, two rows, opposite arranged on the axis, back light green, apex pointed, the lower two with undeveloped flowers, one in the middle with a developed flower, the upper end only with stamens; flowers without perianth, stamens three, filaments slender filamentous, medicine oval; pistils one, columella slender, the same length as the filaments, stigma bifid. ”

Hearing Chu Qing recite such a large paragraph so fluently, even the old medicine head was a little surprised, "When did you memorize it?" Even if it's me, after studying medicine for five years, I'm afraid I can't remember such a small thing clearly, how did you do it? I admire you so much!"

Chu Qing smiled, hearing what the old medicine head said, he also felt a sense of accomplishment, and he said seriously: "Because this is the medicine of Zhuji Dan." ”