At night, there are still a lot of people in the South Jade Hall.

At this time, most of the people in Nanyutang like to be clean, after all, even if there are people in Nanyutang after night, they are all doing their own things quietly, and there are few people who talk and move around. Some disciples of Qixia Mountain who cultivate Dan specifically like to go to Nanyu Hall at night, the picture is the purity at this time, which is somewhat similar to the Chengqi Hall of Jiuxuan, Qian Chao found that some senior brothers can only see it at night, and it is rare to see it during the day, and these people also go to refine the weapon when they are clean at night.

Speaking of which, although Nanyutang is famous, it doesn't look big from the outside, there is only a courtyard, and there is only a main hall in the courtyard, and there is no second and third floors, which is the appearance of a larger school.

But if you walk in from under the plaque of "Nanyutang" at the main entrance, you will find the mystery inside.

Just like the bronze carriage that Tang Ping took to Youming Valley, after entering the main gate, he bypassed a screen painted with "Patriarch's Alchemy Diagram", and then opened a bead curtain that seemed to be made of various colored pills strung into a medicinal fragrance, and the space in the hall was extremely vast, whether it was depth, width or height of the hall house, it was far beyond what could be seen outside the hall.

As a cultivator, he has been here a few times, and Yan Xuan has long been surprised by this.

I found a place where no one was around, there was an eye of fire, and on the eye of fire was placed a black Dan furnace, which was surrounded by a circle of one-person high screens that were isolated from the outside, and every place of the Dan furnace was like this, so as to ensure that they would not interfere with each other when refining Dan.

This Dan furnace is about the same size as the large jar used by Tang Ping to make wine, but the mouth at the top is larger. I don't know what material the Dan furnace is made of, and I knock it with my fingers to make a sound. It looks black, there are complex cloud patterns on the surface, there is a non-dragon and non-snake beast on each side in the form of a bow and climbing, and the lid of the Dan furnace is directly made into the shape of a beast's head, but what kind of beast Yanxuan can't say.

In fact, this Dan furnace is also derived from the art of refining, and the Dan furnace used by many disciples in this Nanyu Hall is not a good product. In Qixia Mountain, not to mention those monks who have already built a foundation, even if they are high-level qi refining disciples, those who have the conditions and methods will find the refining masters of Jiuxuan to tailor a suitable Dan furnace for themselves to refine for themselves. Yan Xuan himself also used the Dan furnace here in Nanyutang when he first learned the art of alchemy, and later after Qian Chao's alchemy skills improved, he specialized in the refining of the Dan furnace, and after gathering the materials, he refined a few good Dan furnaces for Yan Xuan, and Yan Xuan never used the Dan furnace in Nanyutang to alchemy.

But now you still have to use this big guy to alchemy.

Open the lid of the beast's head on the Dan furnace, and several thin chains hang several rings on the inner wall of the Dan furnace. During the alchemy, Yan Xuan had to place the different spirit herbs in a plate that could withstand high temperatures according to the requirements of the Dan Fang, and then fasten those plates to the rings in the furnace. There is also a larger and deeper vessel similar to a large bowl hanging at the bottom of the Dan furnace, and when the alchemy is turned, the beast head on the lid of the furnace will be turned sideways, and the Dan liquid formed by the heating of the spirit grass will be poured into the large bowl below to fuse into Dan. Therefore, which rings the spirit grass is placed on the furnace and how to turn the beast's head so that the heated Dan liquid can be poured into the big bowl in order to fuse with each other, these must be clear in the hearts of the alchemists, and if one step is wrong, it will be a waste of the pill.

Place the spirit grass, buckle the lid again, and then use the heat in the fire eye to refine the pill. If you don't make a mistake in every step, you can become a pill, and after opening the furnace, take out the big bowl, and inside is the elixir favored by the monks.

Generally speaking, after the lid of the Dan furnace is fastened, it is not allowed to be opened again before it becomes a Dan, unless something goes wrong halfway and all the spiritual grass in a furnace is discarded.

Yan Xuan had experienced this kind of thing several times, so after putting the spirit grass on the plate and putting it in the Dan furnace, she was still quite apprehensive. After carefully confirming that the spiritual grass in the furnace was correct a few times, Yan Xuan gritted his teeth and buckled the lid of the Dan furnace.

Try it once!

Yan Xuan thought, and with a hook of her fingers, she used fire control techniques to hook out the heat in the fire eye, and suddenly her delicate eyebrows and eyes were reflected red by the flames that burst out of the fire eye.

Qian Chao was also scorched by the heat rushing out of the fire eye at this time, and above the fire eye, a bright white green copper juice illuminated his facial features and eyebrows like a lamp.

He arrived at the Chengqi Hall earlier than Yan Xuan arrived at the Nanyu Hall, and he had already tried to refine it twice, but both failed when he engraved the fifth rune.

Qian Chao felt that he could engrave most of the fifth rune, but he had to stop due to his lack of aura, so all he got was a four-rune spirit sword.

But whenever he had to stop, he could sense that it seemed that he still had residual strength in his body, but he just couldn't use it, and those residual strength, that is, spiritual energy, if he could use it, these five runes of the spirit sword would definitely be able to be refined, but he couldn't find a way to fully exert that residual power several times.

At this time, on the sword embryo, the fourth rune has been neatly engraved on, the fifth rune Qian Chao chose to be the bird rune, and the spiritual power in the body is still not good, but the hateful thing is that only at this time can you vaguely perceive the remaining power hidden in the body, at this time Qian Chao is highly nervous, and I can't wait to grab a big hand and squeeze it hard to squeeze out the hidden aura for my own use.

At this time, his dantian qi sea was almost dry, and he really didn't know where the faintly perceptible aura was hidden.

Failed again, Qian Chao looked at the red sword embryo, after quenching, it was a four-rune spirit sword, and if he gave it to the senior brother in the inner hall, he could exchange it for a few pieces of ore, but the four-rune spirit sword could be refined as long as he wanted it for Qian Chao, and he didn't care, he only came for the five-rune spirit sword tonight, so every time he failed, he remelted the four-rune spirit sword in his hand and continued to use it to refine.

Without quenching with potion, Qian Chao directly threw the sword embryo into the big bucket to cool it, and closed his eyes to meditate to restore his aura.

Again!

Qian Chao thought in his heart.

Unlike Qian Chao and Yan Xuan, although Tang Ping, Li Jian, and Lu Pingchuan were in different divisions at this time, they were all quietly meditating.

Whether inside or outside, the three of them sat still.

Li Jian had his spirit sword beside him, glowing with a subtle layer of fluorescence.

Lu Pingchuan's body was like a furnace exuding heat, and he didn't know when Kang Pu was still sitting there with a cigarette pouch in his mouth, swallowing clouds and spitting fog while looking at his apprentice.

Xiaobai lay in front of Tang Ping's legs and abdomen, curled up comfortably as if asleep, while Tang Ping was silent.