After failing again and again, Lin Feng had stored less and less Lingming Grass, and more and more empty jade boxes, all of which he piled aside.

"No?" Lin Feng looked at the jade boxes containing the spirit grass on the table, and found that the spirit grass had all been used up, and none of the other spirit materials had been used.

"I've tried dozens of times but couldn't succeed, and it seems that this first step of fire control has not been mastered. Ling Kongzi sighed.

Lin Feng didn't speak, he got up and took out the seeds of Lingming Grass and used the gourd to ripen them, fortunately, this low-grade elixir didn't need a long-term spiritual material, so Lin Feng quickly matured more than a dozen plants.

After a short rest, Lin Feng began refining the pill again, putting the three Lingming Herbs into the Dan Furnace again, and carefully controlling the flames.

A quarter of an hour passed quickly, and there was nothing abnormal during the period, which made Lin Feng happy, but when he opened the lid of the stove, a green and astringent smell came, Lin Feng looked inside, and suddenly felt a chill in his heart, and the secret was not good.

"It seems that the time is not accurate, and it has not yet reached a quarter of an hour. Ling Kongzi said.

"Well, the color of the Lingming grass is greenish, which means that the fire has not yet arrived. Lin Feng nodded, his face was slightly gloomy, it would be good if he had a mobile phone at this time, and it would be okay to have a watch no matter how bad it was.

Lin Feng pondered for a moment, his eyes suddenly lit up, and then a trace of excitement flashed on his face, obviously thinking of something, only to see him slap the storage bag with one hand, and a foot-high bamboo tube flew out of it, the caliber of which was about the size of a sea bowl.

Lin Feng smiled slightly, took the bamboo tube in his left hand, took out a silver needle in his right hand, and made a small opening on the side of the bamboo tube.

"Who are you?" Ling Kongzi was quite curious when he saw Lin Feng's actions.

"Hehe, you'll find out later. Lin Feng sold it, put the bamboo tube aside, and then took out a dagger and a few wooden blocks, trimmed and carved them into a water valve.

After connecting the water valve and the bamboo tube, Lin Feng took some mountain spring water and poured it into the bamboo tube, and then took out another bamboo tube and put it under the water valve for water connection.

After doing all this, Lin Feng opened the valve, and the mountain spring water flowed delicately from the bamboo tube above to the bamboo tube below.

"Could it be?" Seeing this, the volley seemed to understand a little.

"Yes, I record the length of a quarter of an hour with the flow of water so that there are no deviations. Lin Feng said with a smile, this device has the same principle as the hourglass, but there doesn't seem to be an hourglass in the cultivation realm, and it takes a lot of time to make one now, and there is no transparent funnel-shaped material, so Lin Feng plans to replace it with a bamboo tube and spring water first, and then make it more detailed when there are materials in the future.

"I see. Ling Kongzi suddenly realized that this truth is not difficult to understand, but they can't think of it.

An hour later, Lin Feng carved four equal marks on the bamboo tube.

"Okay, I tried twice and there was no error, so it should be fine. Lin Feng played with the bamboo tube in his hand with satisfaction, after two tests, the bamboo tube could flow for four moments after being filled with water, so Lin Feng carved four marks on it.

"In the future, I have to make a big container, after all, the primary pill needs three kinds of spiritual materials, and the high-level pill doesn't know how much it needs, and the grasp of time must be more cautious. After Lin Feng finished speaking, he put the bamboo tube aside, took out the Lingming Grass again, and planned to continue refining the elixir.

"This kind of opportunistic method is not a long-term solution, if you really want to refine the elixir, you must be able to control the time with your heart, and foreign things are foreign things after all. "Ling Kongzi is old-fashioned, and Long Zhongdao said.

"That's what the seniors said, but use this tool to feel the change of time first, slowly feel the length of a quarter of an hour, and then I don't need it anymore when I can fully synchronize. Lin Feng's face was straight, indeed, what Ling Kongzi said was very reasonable, if you want to refine the elixir, you must feel and control the time, heat and other factors with your heart, what kind of mobile phone, watch, hourglass to time, even if you can refine the elixir, it is soulless.

"You know best, the old man is just giving you a piece of advice. ”

"Thanks to my predecessors, I won't rely on this bamboo tube. Lin Feng hugged his fists, and then began to learn the method of alchemy, while feeling the passage of time through the bamboo tube, and cultivating the fire flame technique through alchemy.

Ling Kongzi watched carefully, although he had no involvement in alchemy, but as a cultivator, anyone would be curious about the process of refining the pill, even Ling Kongzi in the Yuan Infant Stage was no exception, I saw Lin Feng fail again and again, but he did not lose a trace of discouragement, and immediately started the next attempt after cleaning up, it is the saying that the more you fight, the more you lose, the more you lose.

"Golden yellow!" Lin Feng looked at the three yellow Lingming Grass in the Dan Furnace, his face showed joy, and then quickly added the second flavor of the Lingcai Red Blood Grass.

"Finally refining the first spiritual material, it's not easy. Ling Kongzi praised, and the two didn't say too much.

"A red blood grass, a fire for half an hour. Lin Feng thought for a moment, and after recalling the content of the Dan Fang, the force in his hand increased a little, and the golden flame also burned more violently.

Half an hour later, when Lin Feng opened the lid of the furnace only to find that there was a crimson liquid flowing inside, he knew that the second step had failed.

Seeing this, Ling Kongzi flew over and stopped on top of the Dan furnace, "Although it is difficult to control the fire and grasp the time just now, I have to say that now is the biggest test, the fusion of different spiritual materials, this not only requires perfect control of the temperature outside the furnace, but also to experience the process of spiritual grass fusion with heart, otherwise it will be impossible to refine the elixir." ”

"Use your heart to experience the process of spiritual grass fusion. Lin Feng said softly, hesitated for a moment, and then started to clean up the Dan furnace again, and put it back into the Lingming Grass to continue refining.

Three months later, when Lin Feng opened the lid of the furnace again, the three yellow Lingming grasses inside were evenly covered with a red liquid, as if they had been smeared.

"The second step is also successful!" Lin Feng grinned, the fusion between the spiritual materials is not only the fusion of two different substances, just like the flame, the fusion of the spiritual materials also needs uniformity, just like the scene in front of him, the three spiritual herbs must have the same red blood grass, and in the end, they can refine three pills with the same medicinal properties, which one is missing, which naturally means that the other two have problems, so the three pills that come out of the oven are all unqualified.

"Yes, yes, the two spirit grasses have been completely fused, and your kid does have this talent. ”

Lin Feng smiled again, and then added the third spiritual material written on the Dan Fang, with the experience of fusing the red blood grass, the number of failures of the third spiritual material was much less, but the more difficult it would be, once there was any mistake, all the previous efforts would be in vain.

Therefore, Lin Feng did not dare to have a trace of relaxation, every step was cautious, looking for the reason for failure, absorbing the experience of failure, coupled with the assistance of Ling Kongzi from the side, occasionally there would be amazing words that made Lin Feng feel uplifted, and nodded again and again.

Over time, Lin Feng's technique of refining the pill has been greatly improved, and the spirit grass in the pill furnace is also more and more, on this day, when Lin Feng took out the fifth spiritual material, his eyes were hesitant, he had failed more than a dozen times in this last step, and the most successful one was to refine the prototype of the pill, but Lin Feng's mana was chaotic under the complacency, and the spiritual material was fused into a deformed pill.

"I must succeed this time!" Lin Feng said firmly, putting the fifth flavor spirit material in.

Ling Kongzi also looked solemn, "This last step is also the longest, not only to refine the spiritual materials, but also to fuse the previous ones, the fusion process is far from comparable to one or two spiritual materials, if you are not careful, there will be deformities, although such an elixir can also be taken but the effect will be greatly reduced." ”

"That kind of inferior pill can't be sold, and I can't use it, even if I can take it, it doesn't have much value. After Lin Feng finished speaking, he concentrated all his spirit on the Dan furnace, and the mana in his palm was continuously output.

An hour later, a faint aroma wafted out of the Dan furnace, although this aroma was very light, it could even be described as if it were nothing, but Lin Feng was overjoyed, which meant that the pill was about to be successfully refined!

"Ahem, don't get too complacent, you kid, be careful and make a deformed elixir to let the old man see the joke. Although Ling Kongzi's words were full of ridicule, Lin Feng knew that it was all for his own good, so Lin Feng smiled and focused more on refining the pill.

Looking at Lin Feng's serious appearance, Ling Kongzi nodded with satisfaction, and no longer bothered.

After a pillar of incense, white gas continued to come out around the lid, and the aroma became stronger and stronger, filling the entire room.

Suddenly, Lin Feng raised his right hand, and after a slight vibration came from the Dan furnace, the furnace lid flew up on its own, and three thumb-sized pills flew out of it.

"It's successful!" Lin Feng couldn't help but snort softly, and volleyed over, leaning over to look at the pill.

"The pill has a slight fragrance and a yellowish color, which can barely be regarded as a success, but compared with the pill refined by the alchemist, it can only exert five or six percent of the medicinal effect. ”

"This ......" Lin Feng was speechless for a while, he didn't expect that the pill he had refined would still be so unbearable by the volley.

"Hmph, although the old man doesn't know how to alchemy, if it is said that the elixirs and alchemists he has seen are among the best existences in the cultivation realm, how can the old man's words be fake!"

"Yes, yes, what the predecessors said is that the blow is also right, but after all, I have refined it, which is always right. Lin Feng laughed, not caring about the blow of the volley.

"This is true, and it really surprised the old man, I didn't expect you to really be able to refine the elixir. ”

"Hehe, these three pills are a sign of my success, and I want to make them as specimens to commemorate them. Lin Feng grinned, took out a dagger and engraved today's date on the surface of the pill, then strung it with the golden gourd, hung it around his neck, and then returned to the first room to meditate and cultivate.