In the side hall, a few stone platforms are neatly placed, and there is a large medicine cabinet behind each stone platform, which is obviously the place where the pharmacist refines medicine.

"There are pills on every table, you can choose them randomly, as long as you refine one of the three predetermined medicinal herbs, you will pass the assessment, do you understand?" the old man chuckled.

"Juniors understand!" Fenglin arched.

"I understand, don't go soon. With a prompt, the old man simply pushed Fenglin directly onto the innermost stone platform, and snorted coldly, "Just practice here, Lao Tzu doesn't have the time to accompany you to spend blindly, let's start quickly." ”

"This ...... Didn't you say that it was chosen immediately?" Fenglin pursed his lips and asked in a low voice.

"The Dan Fang on this stone platform is the simplest, if you can't even refine this, get out of here as soon as possible. "The old man didn't have a good airway.

Feng Lin nodded stupidly, thinking that the old man deliberately waterproofed him, so he was grateful in his heart, and unfolded the Danfang on the stone platform.

The old man walked to the corner and sat directly on a stone platform, his eyes kept staring at Fenglin.

"This kid's soul power is so strong, shouldn't he be so clever in alchemy, the Dan Fang on the stone platform is the only one in our outer gate that has an intermediate Dan prescription, if he even refines this Dan, then this kid's alchemy level will not catch up with the president." The old man muttered softly, his face full of anticipation.

Glancing at this yellowed Danfang, Feng Lin's face suddenly became ugly, he frowned, and began to ponder carefully.

This pill is called Sumeru Barrier Breaking Pill, and the grade and effect are not introduced, but there are more than eighty kinds of medicinal materials required, and the refining process is very complicated, and the description in many places is still a little ambiguous, which makes it difficult for Feng Lin.

"What kind of elixir is this, why is it so complicated......" Feng Lin was speechless for a while, but he was born stubborn and never admitted defeat, so he buried his head and began to study it.

Although there are many types of medicinal materials, fortunately, they are all familiar to Fenglin, so he didn't put too much thought into it, but the most difficult thing in refining medicine is the fusion before Cheng Dan, so he firmly remembered every step in his heart.

Erudite and knowledgeable, never forgetful, this is Fenglin's strength, so he soon remembered this pill prescription firmly, but he did not rush to start, but closed his eyes tightly, and began to use his knowledge of medicinal materials to carefully experience the entire process of alchemy.

The old man watched from the sidelines, it was very strange, the expression on Fenglin's face was as uncertain as the weather, suddenly plain, suddenly frowned, suddenly brightened, suddenly fell into an embarrassment, and suddenly puzzled......

After a long while, Feng Lin breathed a long sigh ......of relief, and then opened his eyes, his expression was still a little dignified.

"I said stinky boy, can you do it?" the old man urged, but he was looking forward to it.

"Let's try it for the time being!" a whisper, and Feng Lin moved in his hand.

Turn around and take out all the medicinal materials from the medicine cabinet and place them neatly on the stone platform.

"Oh ......" turned his mind, took out the Yin and Yang Creation Ding, and placed it on the stone platform. But just at this point, Feng Lin stopped again, and he didn't know what he was going to do, just stared at the stone platform in front of him in a daze.

Seeing this Gu Ding, the old man's face was slightly stunned, and he wondered in his heart: "Could it be that this kid wants to use this Ding to refine medicine?"

This old man is naturally not a stranger, the Zhu family and the Yu family have applauded for generations, this heirloom of the Yu family, naturally will not hide from him, although the Yin and Yang Creation Ding is a very precious treasure of heaven and earth, but the restrictions on the user are too great, if you can't mobilize the most orthodox Yin and Yang Qi, then you can't use this Baoding, so all along, this Ding is just a decoration for the Yu family, and it can't play any substantial help at all; even, the old man once tried to control the Bao Ding, but the result was disappointing, and now I see Feng Lin take out this Ding, naturally surprised。

Gu Ding is still simple and clumsy, standing there like a stubborn stone.

"......Boom" There was a soft sound, and Feng Lin's right hand was directly pressed on top of Gu Ding, but with such a press, the stone bump that was flat and unremarkable, and had been silent for hundreds of years, shook violently.

"Khooth!"

The stone skin on the surface of the ancient tripod has actually faded down, and the whole tripod has become crystal clear like jade fat, the black is still black, but it seems to be flowing grease, and it keeps sliding forward; the white is still white, but it has become translucent and shiny; the carving on the tripod seems to come alive, and it has become vivid all of a sudden. A red sun shimmers with the red rays of the sun, and a crescent moon shines with a faint glow.

The old man was shocked, it turned out that this was the true face of the Yin and Yang Creation Ding, and what shocked him even more was that it was the young boy in front of him who woke it up.

The chaotic aura is divided into two, turning into pure yin and yang two gases, as soon as the aura is incorporated into the ancient ding, it seems to be like a fire, the entire ancient tripod is surrounded by mist, but the strange thing is that this mist seems to be different, half of it is steaming heat, and the other half is condensed into frost of cool air, a cold and a hot collide with each other, and it is rapidly rotating on the ancient ding.

At this moment, Feng Lin's left hand finally moved, there was no process of purification and refining of medicinal materials alone, only to see that one medicinal material was thrown into the tripod by Feng Lin, but in the blink of an eye, more than eighty medicinal materials displayed on the stone platform all fell into the tripod.

"Damn, how can there be such a refining medicine, this kid has such a high talent, can't even dismantle and refine the most basic things?" The old man's mouth opened wide, and he was taken aback.

Soon the frightened expression on his face seemed to freeze, and it became more and more obvious.

Feng Lin's right hand turned, and the release of the aura in his hand was significantly accelerated, only to see that the medicinal materials gradually turned into medicinal liquid, and the medicinal liquid of more than 80 medicinal materials did not have the slightest adhesion on the ancient ding, and they all rotated rapidly along the ding wall, while rotating, as if pulled by Fenglin's aura, every drop of medicinal liquid was constantly vibrating, as if to completely purify the residue in the medicinal liquid.

In a full quarter of an hour, all the medicinal materials were completely refined, and judging from the medicinal fragrance, the medicinal properties of these medicinal liquids were almost perfect, without a trace of impurities.

"Is there such an alchemy?" The old man was so shocked that his jaw was about to drop, after refining medicine for so many years, he had never seen anyone refining medicine like this, refining all the medicinal materials together, melting them into the purest medicinal liquid, and at the same time, all the impurities could be completely removed, leaving only the purest essence part, this kind of control Even the union president who is now a six-grade alchemist will probably sigh to himself.

"Huh......" Feng Lin breathed a sigh of relief, the purification of medicinal materials is only the first step, the most difficult is the next purification. When he threw the medicinal herbs into the medicine pod before, it seemed to be chaotic, but in fact, they were placed according to the properties of the medicinal materials. The medicinal herbs of the yang attribute are connected together according to the strength of the attributes, and the medicinal herbs of the yin attribute are followed by them. As for the middle is the neutral herb, which is used as a transition. This combination is to prevent the failure of refining the medicine due to the clash of medicinal properties in the process of melting the pill, but in the process of melting the pill, the most test of the cultivator's soul power, the meticulous control, and the subtle operation are the most difficult.

The reason why Feng Lin was confused for a long time was because of the process of melting the Dan described on this pill recipe. This process can't be said to be wrong, but it's too broad for Fenglin to get the right way, and he can only try it through his own experience and knowledge.

At this moment, Feng Lin's face was also a little solemn, and the aura in his hand gradually stabilized, and the output of this aura was enough to maintain the temperature of the furnace without causing too many fluctuations.