Lao Di's voice suddenly sounded: "Hehe, Haozi, I didn't find out that you were so afraid of death before, how to refine a pill, it would take so much effort." ”

Lu Hao rolled his eyes and teased: "Tell me about you, an old man, who has been mixed for thousands of years, and you haven't even mixed up with a Dan Master." If you have two hands in alchemy, why should I bother to study it myself? ”

"You don't know how to do alchemy, you have a relationship with the old man, if you don't have an old man, you wouldn't even be a monk now, you're just a mortal, I guess you're going to be old now!" Lao Di shouted unconvinced.

Lu Hao also felt reasonable, so he didn't say more, and began to think about the Dan prescription of the Heartless Pill in his mind.

The danger of this Heartless Pill is relatively small, mainly because its formula only requires five kinds of poisonous weeds, and the toxicity of these poisonous weeds is not very strong, and it will not volatilize in the air, which is why Lu Hao took it as the first practice to refine.

After a while, Lu Hao finished thinking about it and felt that he had memorized the refining process of this Heartless Pill, so he began to refine it himself.

I saw Lu Hao looking at the ordinary Dan furnace through the ice wall, using the mana on his body, raising his right arm, and pointing towards the Huoyang Stone next to the Dan furnace.

The Huoyang Stone trembled slightly, then rose from the ground and slowly floated towards the Dan Furnace. It stopped underneath the Dan Furnace, suspended in the middle of the three legs of the Dan Furnace, and did not fall above the ground.

The reason why Lu Hao did this was because if he put the Huoyang Stone on the ground, too far away from the belly of the Dan Furnace, he would not be able to fully exert the power of the flame on the Dan Furnace.

Splitting a trace of mana to maintain the suspension of the Huoyang Stone was effortless for Lu Hao at this moment.

The Huoyang Stone was already in place, Lu Hao pointed towards it again, only to hear a 'poof', the Huoyang Stone was immediately ignited, and the orange flame rose instantly, illuminating Lu Hao's small cave in an instant, and the temperature also increased a little.

It was the first time for Lu Hao to use this thing, and he couldn't help but be a little surprised when he saw that this small ore could burn with such a strong flame.

Lu Hao had also refined other pills at the beginning, such as refining the Heavenly Lei Dan that time. But what was used at that time was just an ordinary flint, compared to this fire stone, it was really not an order of magnitude, and I couldn't help but be a little impressed by the Purple Huizong.

Next, Lu Hao waved his left hand, and the Dan furnace lid flew up instantly and landed aside. He clicked to the red wooden box next to him, and the lid of the wooden box suddenly opened, revealing some commonly used poisonous weed poisons that Lu Hao had purchased from the sect.

Inside this wooden box, dozens of small compartments were densely divided, and each compartment contained a variety of different poisons.

Lu Hao couldn't see clearly through the ice wall, but fortunately, his divine sense was very powerful, and he used his divine sense to search carefully.

"Evil Wind Zhi...... Here, Ahamshi...... Well, this one is very similar, it should be...... Nioh leaf ...... Maha Bamboo ...... Where? It's a lot like that, but it'...... The color is a little wrong, ah, wrong, this is Ling Hanzhu...... And one more, it seems...... Celestial tumor, well, it should be ......"

In this way, it took about half a pillar of incense for Lu Hao to finally find all these poisonous weeds.

Lao Di was so angry that he almost yelled, and said in his heart, how did I find such a stupid person to be a disciple, and I was annoyed alone.

At this time, the gray Dan furnace was already red, as if they were blushing for Lu Hao.

Lu Hao was so engrossed in looking for poisonous weeds just now that he didn't notice the situation of the Dan furnace, and when he saw it like this at this time, he was immediately shocked, and hurriedly ran the gravitational technique, and the Huoyang Stone fell several inches downward.

In this way, the power of the flame was relatively small, and the Dan furnace gradually returned to its original state.

Fine sweat was already oozing from Lu Hao's forehead, and because of the mess just now, he forgot which poisonous weed to put first, and he forgot how much it was, and he was stunned in place.

"What are you doing in a daze, the stove will burst in a while, hurry up and put the materials!" Lao Di finally couldn't help it and drank loudly.

Lu Hao said: "Forget ......"

"I'll rub it!" Lao Di said in astonishment, if you could see his expression at this time, it would definitely be very exciting.

"Put out the fire first, flint is not money, how did I find such a stupid apprentice as you!"

Lu Hao said yes again and again, and a cold air flew out, extinguishing the Huoyang Stone in an instant.

This time he was in a hurry, and Lu Hao was also tired enough, and his forehead was already sweating profusely. He also felt a little embarrassed, and an embarrassed smile appeared on his face.

Because he was busy dealing with it just now, he didn't have time to add mana to the ice wall, and coupled with the high temperature of the flames, the ice wall in front of him fell down with a bang, turning into a place of water.

Lu Hao hurriedly jumped up, but it was already too late, and the clothes and pants under him were wet, and he looked really embarrassed.

"Hahaha......" Lao Di couldn't help laughing when he saw Lu Hao's appearance.

Lu Hao's face was embarrassed, and he shook his head with a wry smile.

In desperation, Lu Hao had to change out of his wet clothes, dry the water on the ground, and clean up after a while, before sitting cross-legged on the ground again. But at this time, he also learned wisely, and put a futon under him to prevent it from being 'flooded' again.

This time, Lu Hao had experience, first took out the jade slip again, carefully looked at the weight and order of the various poisonous weeds introduced inside, and then compared it with the wooden box, repeatedly identified the various poisonous weeds, until it was confirmed, and then began to refine it again.

Erecting a wall of ice and igniting the fire stone, he began to place the herbs in the Dan furnace in the order he remembered.

I saw that his fingers were lightly raised, and the poisonous weeds seemed to have spirituality, and they flew out of the wooden box one after another, and obediently flew into the Dan furnace in an arc.

"Three strains of Evil Wind Zhi...... Nioh leaf two...... Maha bamboo section ...... "That's it, Lu Hao calmly put all the required poisonous weeds into the Dan furnace one by one, everything was checked correctly, he waved his big hand, and the Dan furnace lid flew up instantly, and with a 'bang', the Dan furnace was covered.

Lu Hao had to be careful, alchemy, it was against the sky. Almost all Danfang are summed up by countless ancestors in countless failures, which material is put first, which material is behind, which material is put in the rear, and which material is put in much, all of which have very precise requirements. Even if you do it right, you may not be able to produce 100% of the Dan, not to mention that if it is so bad, even if you can get out of the Dan, it is basically a waste of Dan.

Like what Lu Hao is refining now, it is the most ordinary poison pill, even if it fails, the loss is not big. But in the future, as Lu Hao's Dan Dao becomes more and more sophisticated, the level of the refined pills will become higher and higher, and at that time, it will often be necessary to use up a lot of rare materials to refine a high-grade pill, and once it fails, the loss will be huge.

If you are unlucky and do not refine the Dan, then there is nothing to say. But if it is because you are not familiar with your Danfang, and you fail because of your own mistakes, then you will be annoyed without others saying it.

After the lack of preparation just now, Lu Hao also realized that he must be cautious and careful in the matter of alchemy, and he must be meticulous from the very beginning, only in this way can he become a Dan Dao master.

At this time, he carefully observed the movement of the Dan furnace, and as the flame gradually burned, the temperature of the Dan furnace gradually rose.

At the same time, Lu Hao was also using his divine sense to carefully check the situation in the Dan furnace. Several poisonous weeds had completely melted, and the liquids of different colors slowly began to blend with each other, constantly making sizzling sounds under the high temperature of the Dan furnace.

Everything seemed to be in order, but Lu Hao didn't dare to relax. He has experience in alchemy, and sometimes, accidents often occur in an instant, and the cause of accidents is often a matter of heat.

The time of a stick of incense has passed, and several liquids in the Dan furnace have completely blended together, gradually forming an oval object, not like a solid, not like a liquid, a bit similar to mud.

Lu Hao knew that this was the pill gradually forming, and it wouldn't take long for it to solidify more and more, and finally take shape.

He was very happy in his heart, thinking that if he refined the poison pill for the first time, he would have a good chance of success.

When it was in the middle of the beauty, suddenly, the Dan furnace began to vibrate slightly, and the originally gray Dan furnace began to slowly turn red.

Lu Hao immediately sensed that something was wrong, and hurriedly pointed his finger at the Huoyang Stone, and his finger slowly pulled downward.

And the Huoyang Stone under the Dan Furnace, under Lu Hao's gravitational technique, was also slowly moving downward.

Lu Hao didn't dare to exert too much force, because at this time of alchemy, if the fire sun stone was quickly removed, the Dan furnace would suddenly become cold in the high temperature, and it was very likely that the furnace would be fried.

Just when Lu Hao moved the Huoyang Stone down little by little, the power of the flame was gradually decreasing, but the Dan furnace did not reduce the vibration because of this, but became more violent, and the color of the Dan furnace was also changing sharply, and even the lid of the Dan furnace began to jump, and from time to time it began to rise and fall, making the sound of ping-pong.

Lu Hao's heart was in a hurry, and he couldn't help but increase the strength of controlling the Huoyang Stone, the Huoyang Stone accelerated the speed of its fall, and the flames gradually separated from the belly of the Dan Furnace.

However, all this had no effect, Lu Hao saw that the Dan furnace was getting redder and redder, and the vibration was becoming more and more violent, and the Dan furnace lid was beating uncontrollably, as if there was a gas in it that could not be vented, and wanted to break out of the cover, every time the Dan furnace lid was lifted a little, there would be black heat coming out.

Lu Hao saw that he couldn't control it, so he simply waved his hand, and a cold air was sent out in an instant, directly extinguishing the Huoyang Stone. However, it was good that he didn't release the cold air, as soon as the cold air was released, although the fire sun stone was immediately extinguished, part of the cold air floated to the Dan furnace.

The Dan furnace, which was already hot and hot, encountered the cold air released by Lu Hao, as if a drop of cold water was dripping into the hot oil pot, only to see the Dan furnace slammed, and before Lu Hao could make any reaction, he heard a loud bang on the ground, and the Dan furnace ...... Exploded!