"Teacher, didn't you ask me to promise her?"

Xiao Yan grabbed his head and said a little embarrassedly.

"I asked you to promise her, but you can't agree so simply, at least you have to bargain.

Those medicinal materials are made of fourth-grade elixirs. Do you think the fourth-grade elixir is sugar beans..."

After educating Xiao Yan again, Yao Lao's voice finally fell silent, and Xiao Yan looked embarrassed and didn't say anything.

After a while, Lao Yao sighed softly and said lightly: "Since you have agreed to me, let's go to refine medicine first."

"Okay, teacher."

After responding, Xiao Yan stepped towards the back mountain.

......

In a cave in the back mountain of the Xiao family, Xiao Yan sat cross-legged on the ground, and Yao Lao's nearly transparent body floated in the air.

"I don't know who the Concubine Ya was asking for medicine, but she could actually take out three precious soul-based medicinal materials at once."

Looking at the three medicinal herbs in front of me, Yao Lao was surprised in his tone.

"Teacher, according to your opinion, what kind of elixir can these medicinal materials make?"

Xiao Yan blinked and asked as Yao Lao.

"Most soul-based medicinal materials can be made into pills alone."

Yao Lao slowly landed on the ground, picked up the three medicinal herbs placed on the ground and said, "And these three medicinal herbs are indeed rare fusion pills. I don't know if Na Fei Ya did it on purpose."

He nodded without understanding, Xiao Yan turned his head to look at the medicinal materials on the ground and said, "It's rare to have this opportunity. I'll ask the teacher to take the alchemy so I can watch it."

"Okay, observing the refining of high-level elixirs close-up is also a good learning opportunity for you."

Lao Yao nodded slowly: "Take out the medicine cauldron."

"Okay teacher."

Xiao Yan took out the cashier ring from his arms with an excited expression. After his mind sank into it, a red medicine cauldron of about half a meter appeared in front of him out of thin air.

The medicine cauldron is dark red, with two hideous snake heads carved on it. The open snake mouth forms two ignition holes connected to each other. The holes are curved and continuous. The deeper they go inside, the smaller the diameter.

There is a hole as thick as a baby's arm on the cover of the top section of the medicine cauldron, which is a place dedicated to the medicinal materials.

"Look at it!"

Yao Lao floated near the medicine cauldron, flipped his palm, and a cluster of beating white flames appeared in his hand, which was the bone spirit cold fire.

With the appearance of the Bone Spirit Cold Fire, the temperature suddenly dropped in the huge cave, and it instantly felt like it was in an ice cellar.

Immediately afterwards, Lao Yao shook his palm and the bone spirit in his hand slowly rushed into the medicine cauldron.

"Bang!"

With a light sound, the bone spirit cold fire flipped back and forth in the medicine cauldron and then rose and burned.

"The most important thing in refining medicine is to control fire, which is also the first step in refining medicine."

Yao Lao's faint voice sounded, and he waved his palm winds one after another, and rushed into the medicine cauldron.

Soon, under Yao Lao's control, the beating flames gradually became silent.

"Every medicinal material must first extract the medicinal essence. This time, we will first add the white jade earth spirit fruit."

As soon as he finished speaking, Yao Lao grabbed a crystal clear fruit on the ground, and flicked his fingers and bounced it into the medicine cauldron.

The moment the white jade earth spirit fruit entered the medicine cauldron, the originally silent white flames jumped again. Then, under the control of Yao Lao, they tightly wrapped the white jade earth spirit fruit.

Soon, the white jade earth spirit fruit began to shrink quickly, and drops of transparent liquid like water began to seep out from its surface.

After the last drop of transparent liquid of the White Jade Earth Spirit Fruit was refined, the entire fruit body turned into a ball of ashes and sank to the bottom of the medicine cauldron.

With a smile, Yao Lao's palm stroked, and the transparent liquid wrapped in the cold fire of the bone spirit was sucked into the medicine cauldron, and then he carefully put it into a jade bottle.

Next, Yao Lao repeated the previous movement again.

The Fuhun Grass is refined into drops of green liquid, while the Lingxi Flower is baked into milky white powder by Yao Lao.

"The next step is fusion, which is also the key to the elixir."

Yao Lao tried to grasp the three extracted materials carefully and then put them into the medicine cauldron one by one.

Immediately afterwards, the Nathan white flame in the medicine cauldron jumped rapidly, tightly wrapped around the three materials, and began the most violent calcination.

As the flames were calcined, the three materials began to slowly and gradually merge. As time moved, the prototype of a pothole-filled elixir gradually appeared in the medicine cauldron.

"The last step, the elixir!"

While shouting softly, Yao Lao's face also became cautious.

In the medicine cauldron, the white flames seemed to be suppressed by an invisible force, and became docile.

After a full quarter of an hour, under the pressure of the cold fire of the bone spirit, two white round pills were finally formed.

With a move of his hand, two pills flew out of the medicine cauldron with a "swish" sound, and were grabbed by Yao Lao and then put them in two jade bottles.

"Teacher, why did you refine two pills? Isn't the effect of the medicine not strong enough?"

Xiao Yan looked at the two jade bottles on the ground and spoke out his questions.

The medicinal materials that could only refine one elixir were divided into two, and the medicinal power was naturally divided into two.

In other words, the pills that Yao Lao originally refined were of the fourth grade, but now they can only be considered as fake fourth grade after being divided into two.

"Idiot, I spent my soul power to refine pills, and you will receive a ice spirit flame grass as a reward."

Yao Lao glared at Xiao Yan, pointed to the two jade bottles on the ground and said, "These two white jade soul pills are all for soul-type pills. Just give Concubine Ya to submit one. Please put away the rest for now, and I may use it in the future."

"But, Yafei..."

"Nothing but, just do what I said!"

Yao Lao flicked his sleeves and turned around.

"All right!"

Xiao Yan nodded helplessly.

Put away the two jade bottles on the ground, and just as Xiao Yan was about to put the medicine cauldron into the ring, Yao Lao suddenly turned around and said, "Wait!"

"Teacher, is there anything else?" Xiao Yan asked in confusion.

Lao Yao stretched out his hand, pointed at the medicine cauldron that Xiao Yan was about to take back, and said lightly: "You have been watching for so long, and now you can try to refine a furnace while the iron is hot, so as to see your shortcomings."

Nodding, Xiao Yan looked at the medicine cauldron in front of him, then sat cross-legged, his eyes slightly closed.

Immediately afterwards, the pale yellow Dou Qi oozed out of Xiao Yan's body and finally gathered on his palm.

After a moment of silence, the Dou Qi rushed out of his palm and drilled into the medicine cauldron.

At the same time, Xiao Yan's fingertips turned, and an extremely thin stream of green air was poured into the medicine cauldron.

The moment the green airflow and the yellow fighting energy touched each other, it turned into a yellow flame and started to burn with a "puff".

“It’s been a lot of progress, at least a lot more than the previous one.”

Looking at the churning flames inside the medicine cauldron, Yao Lao nodded in approval and said in a deep voice: "Refining Huishen San, I hope you don't waste too much medicinal materials this time."

"Yes, teacher."

Without a doubt, Xiao Yan opened his eyes and took out the medicinal materials to refine Huishen San from the ring, and then began to refine medicine under the command of Yao Lao.
Chapter completed!