The old turtle nodded, in its opinion, Qiao Yun's decision this time was still very correct, the Dan Dao was very helpful to cultivation, and the others were some auxiliaries. The old turtle said to Qiao Yun: "You can walk into the first side room on the left hand side of the main room, the master said that you can take one thing away, you have to make your own choice." The old turtle finally reminded Qiao Yun.

After listening to the old turtle's words, Qiao Yun directly entered the first side room, he was already a little impatient to know what the master of the Fog Hidden Castle had left for him. The area of the side room is very large, and this is obviously an alchemy room of the Lord of the Fog Hidden Castle. Qiao Yun walked directly to the side facing the entrance of the room, and the rows of shelves were full of jade boxes, each of which was labeled with a label indicating what kind of spirit grass, beast pill, and ore it contained...... Qiao Yun had seen too much of the spirit grass he had seen from ancient books, and the Huang Weizi he lacked for refining Qi Cultivation Pill was also among them. Qiao Yun didn't look at the names of those many spirit grasses anymore, but turned his gaze to the left, there were several rows of huge display cabinets lined up on the left side of the Dan room, and the various pills in the cabinets were arranged one by one, and there were many labels on them, Pei Qi Dan, Pei Yuan Dan, Soul Rejuvenation Pill, Tianyan Dan, and Zhuji Dan...... Qiao Yun's eyes were glazed when he saw it, and his heart was even hotter, if it weren't for the old turtle saying that he was only allowed to take out one thing before Qiao Yun came in, Qiao Yun would definitely have to empty this place. Qiao Yun knew that if he had these pills, then his promotion would not be any problem at all. Holding back the restlessness in his heart, Qiao Yun turned his gaze to the cabinet on the right side of the Danfang. When he saw the things on the table, Qiao Yun's mood was even more excited, although there was only one cabinet on the right side, but there were more than a dozen Dan furnaces placed in the cabinet, each of which exuded a heavy metallic luster, and a trace of Dan Yun flowed faintly, making Qiao Yun reluctant to take his eyes off at all. Although Qiao Yun can't put down these things, Qiao Yun didn't think about snatching them, Qiao Yun is a very principled person, things that don't belong to him, Qiao Yun won't take them, if he takes them, Qiao Yun feels that he has lost his heart. Qiao Yun looked at each Dan furnace and played with it in his hand for a long time before returning to the middle of the Dan room.

There is a small bluestone round platform in the middle of the Dan room, and the pattern of the Bagua Array is also carved on the round platform, and there is only an inconspicuous Dan furnace and a jade slip on the round platform. Qiao Yun picked up the jade slip suspiciously, looked at it again and again, and did not find the slightest handwriting from it. Didn't you say that there was the alchemy experience of the Lord of the Fog Hidden Castle? Why is there nothing in this Dan room except this jade slip? And there is no mark on this jade slip, could it be that the old turtle is lying to himself? Qiao Yun shook his head and denied his guess. There is no need for the old turtle to deceive himself at all, even these pills and pill furnaces can be taken away by himself, there is no need to fabricate an alchemy experience at all, he must not have found it.

Qiao Yun carefully examined the jade slip again, wanting to see any clues from it, but no matter how long he looked at it, he didn't find a trace. Just as Qiao Yun was about to give up and go out to ask about the old turtle, his heart suddenly moved. Could it be that it is to use the divine sense? Qiao Yun knew that it was common for cultivators to use their divine sense, but he had just been promoted to a cultivator and was still used to using his divine sense, so he always forgot about his divine sense. Qiao Yun didn't hesitate, and the next moment, his divine sense swept towards the jade slip in his hand.

With a "hum", a large amount of information rushed into Qiao Yun's mind, and Qiao Yun felt that his head was almost blown up by this huge amount of information. Qiao Yun quickly withdrew his divine consciousness and took a deep breath, only then did he slowly immerse his divine consciousness into the jade slip again, and wisps of information were imprinted in Qiao Yun's mind, and there was no more rage before.

Dan Dao originated from Taoism, using the Dan furnace to condense spiritual grass, beast pills, minerals, etc. into Dan to meet the effects of various cultivation, healing, and rejuvenation of the face......

The alchemist first needs to condense the true fire, or find the self-generated heaven and earth fire in the heaven and earth, which is what an alchemist must have, otherwise there is no way to talk about alchemy, and the following is the mantra for condensing the true fire. Freeze the dantian, the void realm, turn the qi into the whole body, and turn the qi into fire......

The spirit weapon Dan furnace is divided into nine grades, and every three products are turned into a file, which is divided into the lower grade spirit weapon Dan furnace, the middle grade spirit weapon Dan furnace, and the upper grade spirit weapon Dan furnace, and there is still the best spirit weapon Dan furnace above the top grade. As for the immortal pill furnace, I have never heard of it, so I will not describe it here......

Qiao Yun sat down cross-legged, immersed in the study of Dan Dao, from the condensed true fire at the beginning to the Dan Fang one by one, Qiao Yun watched it with relish. I don't know how long it took for Qiao Yun to stand up suddenly, and the information in the jade slip had been sorted out by him and turned into his own. Qiao Yun knew more spiritual grasses and spiritual objects than in ancient books from the jade slips, and at the same time remembered one Dan Fang after another. Qiao Yun secretly sighed that he was simply a frog at the bottom of the well before, and the "Beauty Pill" and "Comfort Pill" were at best two pills that were injected with a little true qi by himself, which was a world of difference compared to the real pill. That kind of low-end pill can be sold at such a high price, and I don't know what kind of sensation the real pill will have. Qiao Yun calmed down his excitement and began to condense the true fire according to the mantra provided in the jade slip, Qiao Yun knew that the fire of heaven and earth was something that could be encountered but not sought, so if he wanted to alchemy, he also needed to condense the true fire honestly.

Time passed in a hurry in Qiao Yun's condensation of the true fire again and again, and Qiao Yun didn't know how many times he had failed, but he still tirelessly condensed it over and over again, condensing the dantian, the void realm, turning the qi all over the body, and turning the qi into fire...... With a pop, a faint spark jumped out of Qiao Yun's right palm, flickering continuously. Qiao Yun was ecstatic in his heart, knowing that he had condensed the true fire. But as soon as his mind moved, the flame disappeared again. Qiao Yun was not discouraged, gathered his mind, condensed and turned into fire again, and soon a small spark appeared on Qiao Yun's palm again. Qiao Yun constantly channeled his true qi to the flame to maintain the durability of the flame. But Qiao Yun didn't last long, he was already sweating profusely, and when the time of a stick of incense passed, the real fire suddenly extinguished again. Qiao Yun's face was pale, his chest was constantly rising and falling, Qiao Yun knew that his cultivation was still too low, just a short time of incense, the true qi of his whole body was consumed, but this time was not enough to refine the simplest pill, it seemed that he wanted to refine the pill and improve his cultivation, it was estimated that he could condense the true fire at the first level of qi training.

Qiao Yun was not too discouraged, but used all his strength to control the wind and restore his true qi. When Qiao Yun recovered, he put the jade slip back to its original position, Qiao Yun was still very grateful to the master of the Fog Hidden Castle in his heart, if it wasn't for him to let him come in to see the jade slip that he usually recorded in alchemy, it would be difficult for him to systematically study on the way to the Dan Dao, and it would be difficult to reach a higher level. Qiao Yun bowed to Yu Jian three times, and picked up the dark Dan furnace placed next to Yu Jian again, this Dan furnace looked very peculiar, and it was different from many Dan furnaces placed on the shelves. The Dan furnace on the shelf is three-legged and the furnace body is spherical, and this Dan furnace is not only eight-sided, but also four-legged. The whole body is dark, I don't know what material it is made of, and there is no metallic luster circulation. Although Qiao Yun didn't see anything great about this Dan Furnace, he knew that this Dan Furnace was definitely not simple, otherwise it would not have been placed on the round platform in the middle of the alchemy room by the Lord of the Fog Hidden Castle. From the jade slip, Qiao Yun learned that this Dan furnace was inadvertently obtained by the Lord of the Fog Hidden Castle, and even he couldn't see the grade of this Dan furnace, but all the elixirs of this Dan furnace could be refined, and the Lord of the Immortal Pill Fog Hidden Castle had not tried it, because he could not refine the elixir, so this strange-looking Dan furnace was placed in the middle of the round platform by the Lord of the Fog Hidden Castle to distinguish it from other Dan furnaces. The Lord of the Fog Hidden Castle guessed that this was an Immortal Artifact Dan Furnace, but he couldn't be sure, but there was no doubt that this Dan Furnace was at least a top-grade Spiritual Artifact Dan Furnace.

Since he could only take one thing away, Qiao Yun originally wanted to take a Dan furnace. Because sooner or later, if you take a bottle of elixir or spirit grass, you will run out, and you have already memorized the content in the jade slip, only the Dan furnace is what you don't have now, and it is also necessary for your own alchemy. Qiao Yun didn't go to the shelf where the Dan furnace was placed before to look for it, but directly picked up the dark Dan furnace at hand, although the appearance of this Dan furnace was a little weird, but at least it was the best spiritual energy Dan furnace, and even beyond this existence, of course Qiao Yun would not look at other Dan furnaces again.

After choosing what to take away, Qiao Yun walked out of the room. The old turtle was still lying on Qiao Yun's stomach when he entered, obviously he hadn't moved since Qiao Yun entered.

Seeing the dark Dan furnace in Qiao Yun's hand, the corners of the old turtle's eyes twitched, and he secretly sighed in his heart that this Qiao Yun had vision, and he actually took away the master's favorite Dan furnace in his life. However, the owner said that he could let someone who was destined to take away one thing, and the old turtle had also said that he could let Qiao Yun choose one thing to take away, and now although the old turtle was distressed, he had no way to say anything.

"Have you finished reading your master's alchemy?" the old turtle stood up and asked.

Qiao Yun nodded and said, "Yes." ”

"If there's anything you haven't remembered, you can take a closer look and know that it's a rare opportunity. The old turtle couldn't help but remind again. Qiao Yun only took three days to come out, the old turtle didn't think that Qiao Yun could completely remember and digest the alchemy experience left by his master, if Qiao Yun only learned a little bit and wanted to go back to alchemy, it would definitely end in failure.

However, what the old turtle didn't know was that Qiao Yun not only finished reading the alchemy experience left by the master of the Fog Hidden Castle, but also condensed the true fire, all thanks to Qiao Yun's extraordinary learning ability and perseverance.