Two days later, there was an explosion in Guan Yu's retreat, and as soon as the explosion sounded, the entire house was blown up, and Guan Yu rushed out of the explosion with a disgraced face.

"What's going on, what's going on?" Nangong Qianqiu arrived as soon as possible, and his face was terrifying.

Aunt Lan also arrived, and she couldn't help but smile bitterly when she watched Guan Yu's villa being razed to the ground.

"There are some procedural errors, teacher, do you still have the materials to cross Erdan? Can you give me another copy?" Guan Yu was not discouraged, if he followed Nangong Qianqiu's method of refining, he would not explode the furnace, but he wanted to change, one is to change the method of alchemy, and the other is to change the time of alchemy, so that alchemy has an obvious acceleration period, instead of ten days and half a month or a month and a half or something like that.

"You didn't refine it according to what I said?" Nangong Qianqiu said coldly.

"Teacher, please give me another copy of the materials for Doodan. Guan Yu bowed.

"Hmph, do you think the materials for Du Erdan are so easy to find? How many years did it take for the big black black rock to get the two copies?" Nangong Qianqiu was a little annoyed, wasting a furnace of materials, that is a waste of life, this furnace of materials, a few grains of Du Erdan can be exchanged for several lives.

Guan Yu just bowed, and Nangong Qianqiu taught him a lesson, and he didn't refute it.

Seeing Guan Yu's appearance, Nangong Qianqiu was angry, and threw a ring casually and said: "If you explode again, I will expel you from the division, hum." "Nangong Qianqiu can't afford to lose this face, as a famous artist, a disciple of an alchemy master, he will never explode as soon as he bursts, but Guan Yu will explode, so if this is known to others, it will be a big shame.

Guan Yu took the ring, and after saluting again, he directly put away the Three Realms Ding, and then continued to fly towards the back mountain of Nanshan.

The Three Realms Ding was not broken, but the lid exploded, and there was an explosion wave, not the kind of furnace Ding that exploded.

"Sir, this disciple of yours is very stubborn. Aunt Lan couldn't help but laugh.

Nangong Qianqiu was also speechless for a while, how could this kid explode? With his intelligence and experience, it won't be.

But Nangong Qianqiu still didn't care, he had already taught the refining method of Du Erdan, and if he couldn't learn it, Guan Yu couldn't do it himself, and he had nothing to teach.

And after Guan Yu found a cave in the back mountain, he continued to alchemy, or the previous steps, the speed of entering the medicine was very fast, and the Jiuyang True Fire was put to the maximum, and after just half an hour, all the hundreds of medicinal materials were melted by him, and then it was also a critical moment, because he had exploded the furnace at this stage before, and he used it for three days before, but now it only takes half an hour, so the probability of bursting the furnace is greater.

Guan Yu was engrossed, it took time for the fusion of medicinal properties, and he was forcibly accelerating the fusion, so when various attributes collided together, they would naturally explode.

However, Guan Yu believes that as long as the spiritual power is used properly and the principle of the five elements is mastered, it should not explode, for example, the explosiveness of the fire attribute, then let the water attribute be neutralized, in short, the liquid in the furnace should be arranged.

This process was not long, it was only half an hour, and after half an hour, Guan Yu had symptoms of collapse, but fortunately there was no explosion, and at this moment, he suddenly closed the fire again.

That's right, all of a sudden, the flame was retracted, and the furnace temperature dropped instantly.

At the same time as the furnace temperature dropped, the liquid medicine began to solidify, Guan Yu suddenly increased the fire, and then closed the fire again, and added the fire again, so that after reaching nine times, Guan Yu slowly controlled the fire, and at this time, the pill in the furnace had already taken shape and turned into a pill, and there was not just one, but six.

After another hour of slow firefighting, Guan Yu's heart suddenly moved, intuitively, it should be out of the pill, but he didn't dare to open the lid easily, because he was afraid that the moment he opened the lid, the six pills would melt.

"Lack of a medicine lead!" Guan Yu closed his eyes, Nangong Qianqiu's alchemy was introduced without medicine, and his previous alchemy had to have an introduction, and this introduction could sometimes be added to the furnace, and sometimes it was added at the moment of baking.

"What's the introduction?" Guan Yu continued to simmer, and at the same time, his forehead was already sweating, because if he didn't bake it again, the furnace was useless.

But what is medicine?

"Crossing the doom and doom, in fact, also has the effect of screening the evil of the heavens, making the power of the calamity smaller, but my Huangquan diagram can screen the evil of the heavens, and the Huangquan diagram only relies on the yellow spring water, the yellow spring water? By the way, the yellow spring water!" When Guan Yu thought of this, he suddenly bent his hand, and a yellow spring water shot out like a fountain, and at the same time, the furnace lid opened, and the yellow spring water turned into water vapor when the furnace lid was opened, and the water vapor nourished the six Ergin pills that flew out and rotated non-stop.

"Hmm, it's not good, why did the coercion of heaven and earth suddenly appear?" At this moment, Guan Yu's heart palpitated, because a kind of coercion of heaven and earth suddenly came, and this kind of coercion of heaven and earth seemed to be extremely calamitous!

"And at the same moment, Nangong Qianqiu and Aunt Lan flew over in horror, why did there appear a cloud of calamity in the back mountain?

"How is it possible, how is this possible?" Nangong Qianqiu screamed and rushed into the cave, not afraid of disturbing Guan Yu.

As soon as he entered the cave, he saw six golden pills hovering above the furnace, one of which was already golden and purple, and there were Dan patterns.

That's the best elixir, and the best elixir will lead to a catastrophe.

Nangong Qianqiu's eyes were about to burst out, how could this new disciple he had recruited possible? How could this be?

"Boom", a thunderclap sounded from the town outside the cave, and then a thunderbolt silently slashed in from the mountain, piercing the Dan with the Dan pattern.

"Hmph. Nangong Qianqiu snorted in annoyance, and when he bent his hand to grab it, he actually grabbed the thunder directly in his hand, and at the same time, with a wave of his other hand, the six pills disappeared at the same time, and the thunder also disappeared in an instant.

There is only one pill tribulation, and the power is not so strong, after all, it is just a pill, and the power of the thunder can be resisted, and it was directly blocked by Nangong Qianqiu.

Guan Yu's face was pale, his mental power was a little sluggish, and he arched his hand to Nangong Qianqiu and said, "Teacher, I'll enter the Huangquan Diagram to recover." With that, he vanished into thin air.

Nangong Qianqiu took a deep breath again and again, and also presented the two transparent crystal bottles in his hand, among the two bottles, one was a single top-grade Du Erdan, and the other was five high-grade Du Erdan.

Nangong Qianqiu's hands were shaking, he had been refining the Dan all his life, and he had only refined a few superb pills in total?

And what about this disciple? For the first time...... No, the second alchemy will refine the best pills, and the most important thing is that the other five are also high-grade.

And his disciple has just become an immortal, and he is just a first-class immortal.

This is simply terrifying, this talent is countless times stronger than his master, and countless times stronger than the other two most famous Great Dan masters in the Nine Heavens.

"Huh?" At this moment, a few divine thoughts suddenly appeared, Nangong Qianqiu's face changed, and he shouted: "What, even the old man refining a pill, you all have to come to snoop?

"Don't dare, don't dare ......"

"That's not what it means......"

"We see that there seems to be a Dan Tribulation......"

"Congratulations to Brother Nangong......"

The voice came intermittently, but it also disappeared instantly, and Nangong Qianqiu sneered, in the first heaven, there was also an immortal emperor, and the Dan tribulation just now attracted the attention of the immortal emperor hidden in the first heaven.