After resting for about half an hour, Xu Changlin's slightly closed eyes suddenly opened, and after taking a long breath, he stood up, walked to the front of the brass stove, opened the small door of the Dan furnace from the side, and threw a piece of low-grade soul bone inside.

Xu Changlin circled around the furnace on the ground, slapped his hands on the brass furnace, and the entire furnace suddenly buzzed and roared, and the brass pipes connected to the surface also began to twitch, like large earthworms wriggling.

"Get up!" Xu Changlin shouted, and at the same time, his hands turned like wheels, and one after another spells came out of his hands and hit the brass Dan furnace.

The roar of the brass Dan furnace stopped suddenly, but a surging yellow flame ignited inside, and bursts of high temperature were transmitted through the small door on the Dan furnace, even Han Ming, who was hiding in the corner, couldn't help but activate the body protection light curtain to block the heat wave that was blowing in his face.

At the same time, the nine dragon heads on the stone wall groaned softly in unison, and each spewed out a tongue of fire, which was wrapped around the outer wall of the brass earth furnace in the middle.

When refining the elixir in this furnace, there was a flame inside and outside!

Xu Changlin gently threw a bone bottle on the side, and a fist-sized emerald liquid flew out of it, straight through the small door on the furnace wall, and threw itself into the raging flames in the furnace.

Xu Changlin sat back on the stone platform, pinched the trick with both hands, and constantly used his spiritual power to probe the situation in the furnace, and every once in a while, he would throw the essence of the dark bone extracted from a small bone bottle next to him into the earth fire along the small door of the Dan furnace.

.......

A day later, Han Ming and Xu Changlin walked out of the alchemy room side by side.

"Haha, Senior Brother Han is really my nobleman, this furnace Hua Qi Dan is the largest number of my Cheng Dan!" Xu Changlin smiled all over his face, playing with a small white bone bottle in his hand.

"It's Senior Brother Xu's superb alchemy skills that can make so many pills in one furnace, Senior Brother doesn't dare to touch it" Han Ming shook his head and smiled, tilted his head and thought about it, and then added: "I see that Senior Brother Xu's current alchemy level can apply for the sect's high-level alchemy master!"

"Where do you dare to become a high-level alchemy master, there are only a dozen or twenty people in this sect, how dare the senior brother have extravagant hopes! But listening to the advice of the senior brother, the senior brother can try it in a few days to see how far away he is from the high-level alchemy master!" Xu Changlin smiled heartily, and the joy on his face was even stronger.

"Senior Brother Xu is a little too modest, Senior Brother Xu can have such a high success rate when refining such a difficult pill as Hua Qi Dan, I'm afraid he has already reached the level of a high-level alchemy master!" Han Ming shook his head, his face full of envy.

The envy on Han Ming's face was not a fake, a high-level alchemy master was not just an alchemist's title, a high-level alchemy master was a watershed, and after reaching this point, he would be qualified to refine the knot pill, the kind of elixir that would assist the monk to make the pill.

Xu Changlin turned his eyes to look at Han Ming, but when he saw Han Ming's closed eyes, he suddenly seemed to remember something, so he asked, "By the way, Senior Brother Han's eyes are born with eye diseases, or are they injured because of the fighting method?"

"Oh, what did Senior Brother Xu say this, is there any difference between this?" Han Ming raised his eyebrows slightly, and asked with some confusion, as if he was very surprised by Xu Changlin's mention of his blind eyes.

"A few days ago, the senior brother accidentally recalled a secret technique, which seems to be called borrowing pupil spiritual technique, probably to cultivate and assimilate a pair of eyes first, and then take them out after maturity, replacing the damaged old eyes, not only can the blind person regain the light, but also has a certain possibility of obtaining some spiritual powers, but this secret technique can only be used if the acquired blindness is not effective, and it has little effect on congenital defects! Xu Changlin took out a jade slip as soon as he flipped his hand and handed it to Han Ming's hand.

Hearing the explanation, Han Ming looked surprised, but after frowning slightly, he pressed the jade slip against his forehead, and his spiritual power probed into it, and he sensed it carefully.

After a full half an hour, Han Ming withdrew his spiritual power from the jade slip, sighed softly, and said with regret: "Thank you Senior Brother Xu for your kindness, it's just that this secret technique is not suitable for junior brother, although junior brother's eyes are not congenital blindness, but they are not ordinary acquired blindness, the foundation of both eyes has been damaged, and it is useless to replace only two eyes!"

Han Ming handed the jade slip back to Xu Changlin in his hand and shook his head slightly, with a hint of obvious disappointment on his face.

Han Ming's disappointment is also true, but he lied, in fact, this secret technique should be useful to him, first find a suitable person, use spiritual materials to cultivate and assimilate the primary and secondary eyes, and wait until the right time to dig it out instead of hurting the eye, he is indeed very likely to recover his eyesight early.

However, if this secret technique can restore his light, Han Ming will not use it, not because he cares that using this secret technique will cause another person to lose his eyes, but because he doesn't want to give up his current eyes, these eyes are cultivated by the Blue Blind Heavenly Determination, and his blindness is only temporary, he is reluctant to change them to a pair of ordinary human eyes!

"It's a pity, I thought that this secret technique could help my junior brother regain his sight, but I didn't expect it to be unsuitable, but my junior brother doesn't have to be frustrated, he retreats to the second, senior brother also knows a secret technique, maybe it will be useful to junior brother!" Xu Changlin turned his hand and put away the jade slip, and continued, but his tone became a little strange when he mentioned that secret technique.

"Oh, what secret technique?" Han Ming's tone was normal, but he was unconsciously a little vigilant in his heart, this Xu Changlin paid too much attention to him.

"This secret technique is called the spiritual eye, which is an incidental secret technique in a certain spiritual cultivation technique of the sect, which can make the spiritual power explore like the human eye. The junior should know very well that although spiritual power can also perceive things, there are many gaps between it and the normal human eye, and both have their own advantages. Xu Changlin continued to speak.

"Spiritual Eye!Let Spiritual Power Detect Like a Human Eye?" Han Ming was slightly happy when he heard this, if Xu Changlin hadn't lied, this secret technique really seemed to be suitable for him.

"It seems that it is really suitable for junior brother, so does Senior Brother Xu have this secret technique on him now?" Han Ming raised his head to face Xu Changlin, with just the right amount of joy on his face.

"It's a pity, senior brother only remembers this secret technique in the explanation of a certain exercise outline in the library pavilion, the specific situation is a little unclear, and it is also half-understood, if the junior brother is interested, you might as well go to the library to find it yourself, the people there know the details of this classic!" Xu Changlin shook his head slightly, and spread his hands by the way.

Han Ming thought about it with his eyebrows, and bowed his hand to Xu Changlin slightly: "Okay, junior brother, let's go and take a look, if that piece of spiritual eye secret technique is really useful, I will definitely come to the door in person to thank Senior Brother Xu for his kindness!"