Under the soft white light of a huge moonstone on the roof, Yu Xing's expression flickered with the flipping of several bundles of bamboo slips, and the clouds were uncertain. When he had turned over all the bamboo slips, Yu Xing piled them back and sighed lightly.

This time there is some gain, these bamboo slips are really the recipes of several pills and some dispensing experience. But it's a pity that judging from the composition of these pills, these kinds of elixirs are all elixirs with similar effects as the "Huanglong Pill" and "Golden Marrow Pill" of the remaining punishment, and they have no effect on the remaining punishment that has reached the thirteenth layer of the basic exercises.

put his last gaze on the two fist-sized jade slips, which he deliberately left to the end, he had a hunch that in these two jade slips, he should use something.

A wisp of spiritual power slowly entered the jade slip, and soon a method of refining the pill appeared in front of him, it turned out to be the refining method of the Zhuji Dan, from the raw materials to how to condense the whole process into the pill.

Yu Xing raised his eyebrows, and his face softened slightly. He has Tsukidan in his hands, but it doesn't mean that others don't need it, he has a careful success, others don't.

However, as mentioned above, refining Zhuji Dan requires the use of Taoist true fire, which makes Yu Xing a little difficult.

The innate true fire is the Taoist Gang fire that only monks can have during the foundation building period, and it is a basic magic energy that immortal cultivators after foundation building are born with. It will gradually increase in power with the monk's refining and meditating, and even after the Dan Formation Period, this true fire will turn into the legendary fire of the three flavors, which can burn all things in the world.

"Forget it, it's really not good, just wait for me to break through to the foundation building period, and then start refining." Yu Xing muttered, and quickly memorized all the contents on the jade slip.

Then Yu Xing touched another jade slip and began to remember.

"Dingyan Dan", as soon as Yu Xing's mind entered it, these three words appeared in his mind. The corners of his mouth twitched slightly, this Dingyan Pill is used to make the monk's youth eternal and his appearance last.

It didn't help him much.

"The time is almost up, if you still want to read, you need to pay another spirit stone." Below, the old man's voice came.

Yu Xing put down the jade jian, this time the harvest is not bad, even if Zhuji Dan does not try to refine for the time being, this Dingyan Dan, and does not need Taoist true fire, he can try it, he can't use it himself, he can take it out in exchange for spirit stones.

Looking at the introduction above, it seems to be quite popular.

"Senior, I wonder if there are any Dan furnaces for sale here?" He planned to refine the pill, and Yu Xing naturally wanted to buy a magic weapon pill furnace, and I heard that it could increase the chance of becoming a pill.

"You want to buy Dan furnace?" The old man's eyes lit up, as if he had seen a fat sheep, and he quickly sat up, "Of course there is." ”

"Hey, hey! My Dan furnace here is definitely the best product, and it will definitely satisfy Xiaoyou! Even if you take the fire, it doesn't matter. The old man couldn't help but squint and laugh.

"Earthfire?" Yu Xing was stunned for a moment, it was the first time he had heard this term.

"It's the fire of the earth lungs that is a little more powerful than the innate true fire." The old man said nonchalantly.

"Didn't alchemy say that you should use innate true fire! Can this earth fire replace it for alchemy? Yu Xing was stunned, it seems that there are still many things in this immortal cultivation world that he doesn't understand.

"Huh! It seems that Xiaoyou doesn't know anything about the fact that the immortal cultivation world has already used earth fire instead of innate true fire to refine pills! However, it's not a big deal, basically anyone who has practiced Dan once or twice knows it. Then I'll tell you about it again for free! The old man seemed to be very concerned about this, and his spirits were lifted, but he deliberately bit the word free very hard.

Yu Xing smiled slightly, this is to be a benefit, he raised his hand and waved, five low-level spirit stones quietly appeared on the counter, and Yu Xing smiled all over his face.

"This should be the filial piety of the younger generation."

"Haha, it's been a long time since I've met such a high-ranking junior, if you have any questions today, just say it." The old man snorted twice, and quietly accepted the spirit stone.

"Its innate true fire to alchemy is already a long time ago! Today's alchemy in the Immortal Cultivation Realm is all borrowed from the fire of the lungs of the Xuanyang Land to quench the elixir. Because a long time ago, our predecessors had discovered that the earth fire was not only purer and hotter than the monk's true fire, but also particularly durable and stable, much higher than the original true fire alchemy method into a pill, and it was also equally effective for refining weapons. Therefore, as long as there are conditions for the immortal cultivation sect and even the larger immortal cultivation families, they have their own special Xuanyang Fire Land for their own children to refine pills and refining weapons. There are only those wild cultivators who are lonely and can't borrow the earth fire, and they still use this kind of true fire alchemy method with a very high rate of abolition pills. ”

The old man said slowly, smiled and glanced at Yu Xing, and could guess some, "If you want to borrow the earth fire, when Xiaoyou first entered the Yuelu Palace, did you see a passage that was not marked in any way, and that passage leads to the Xuanyang Fire Land, if you hand over some spirit stones there, you can borrow the earth fire." ”

Yu Xing hugged his fists and said thank you, in this way, before he builds the foundation, he can also try to refine the Zhuji Dan.

A Zhuji Dan, in the world of cultivating immortals, how valuable it is, the rest of the punishment is naturally clear.

"Senior, help me pick out some suitable Dan furnaces."

"It's easy to say, it's easy to say, Xiaoyou and I hit it off at first sight, so let's take out the real boutique." The old man regained his true colors as a profiteer, and patted an inconspicuous gray cloth bag on his waist with a grin.

Seeing this old man, he took off the cloth bag and patted it lightly on the open space beside him, and as a result, a row of antique and peculiar Danding appeared on the ground.

"How? These are the top grade Dan furnaces collected by the old man, each of which is a fine product, definitely not an ordinary product! The old man picked up the nearest Ding stove, tapped it, and said with some pride.

"Not bad indeed!" As soon as these Ding Furnaces appeared, Yu Xing felt the slightest aura emitted by them, and couldn't help but say lightly, "That's it." ”

Yu Xing picked a small silver ding, and he could observe that the spiritual power on this Dan furnace was the strongest.

"Tsk! Xiaoyou is really a good eye, this silver silk tripod is definitely a fine product in the Dan furnace, and it is a rare high-grade magic weapon. In all my Ding Furnaces, it is also second to none! The old man was slightly surprised when he saw that Yu Xing had picked the youngest guy, but he immediately looked as usual, and praised the silver tripod as a flower, and his mouth was full of praise.

The corners of Yu Xing's mouth twitched, this old man wouldn't want to kill himself again.

"In this way, I will charge you fifty spirit stones."

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