With Zhang Heng's vision, it was naturally easy to see the bottom of the Zijin Heart Refining Furnace.

"With the extraterrestrial star cinnabar as the main body, with the addition of meteoric iron, Yunteng wood and other tough materials, this Dan furnace is indeed extraordinary, and the most important thing is that on the Dan furnace, there are also many reinforced runes engraved on it......" Zhang Heng gently stroked the Dan furnace and muttered in his heart: "It can be said that the ordinary best Dan furnace, if the bottom line of the fryer is 1, then this Dan furnace, the bottom line is at least three!"

"It's more than three times the tenacity, and it's no wonder that the demon lord has this kind of confidence. ”

"It's just that it will never blow up the oven, it's too early to say that!"

Zhang Heng's expression became more and more weird, he poured spiritual power into the Dan furnace, and the dense runes on the purple gold heart refining furnace all shone brightly.

When the medicine boys saw this scene, their little faces flushed.

"Is this the Purple Gold Heart Refining Furnace?"

"Sure enough, it lives up to its name!"

"Great, being able to use the Purple Gold Heart Refining Furnace, the master doesn't have to worry about the fryer anymore!"

Obviously, the medicine boys also have a lot of confidence in this Dan furnace.

In this regard, Zhang Heng smiled noncommittally.

"In that case, we can't live up to the demon lord's good intentions, let's prepare to open the furnace for alchemy!"

Zhang Heng slapped his palm, and the lid of the Zijin Heart Refining Furnace flew up directly, suspended in mid-air.

He sat cross-legged in front of the Dan furnace, stretched out his hand, and grabbed it forward.

"Agave, originally only three plants were needed, but now, thirty plants!"

Zhang Heng threw it directly into the Dan furnace.

"Thirty agaves?"

When the medicine boys saw this scene, their eyes showed surprise.

"Why do you put so much at once?"

Zhang Heng said lightly.

"Tequila, with a trace of dragon energy, and the demon lord is the body of the dragon, put more agave, after becoming a pill, the more dragon qi is, for the demon lord, there are great benefits!"

The medicine boys nodded, and there seemed to be some truth.

Zhang Heng didn't care what they thought, with a little finger, the real fire gushed out, and its firepower was ten times stronger than before!

The most important thing is that he seems to be insufficient, and under the Dan furnace, a few pieces of fire crystals are added.

There is only one use for this kind of spar, and that is to increase the power of the flame!

The flame crystal burned quickly, and the heat of Penglai ran through the entire Dan furnace, and a surging heat rushed out directly from the Dan furnace!

"This fire ...... Wouldn't it be too big?"

The medicine boys muttered softly, and suddenly there was some uneasiness in their hearts.

According to this alchemy, is it really impossible to fry the furnace......

"The agave is not easy to melt, but now there are thirty plants, and the firepower naturally has to keep up. ”

Zhang Heng was not enough, and commanded the medicine boys to come around, the fan fanned, and the fire of the fan became more and more vigorous.

"In this world, there is no Dan furnace that can never be fried...... As long as the energy inside the Dan furnace exceeds the load of the Dan furnace material, then the furnace will be fried, and the higher the quality of the Dan furnace explodes, the more powerful it will be!"

Zhang Heng sneered in his heart, this time, he wants to do a big vote.

He didn't believe it, if he blew up the Purple Gold Heart Refining Furnace, the demon lord would dare to keep him by his side?

"Ichthy Scales...... I used to put only one plant, but now I put twenty!"

"White water succulent...... Although it is ginseng, it is not a big tonic, but it is highly poisonous, and the poison must be removed with fire, so let's put ten plants!"

"Nine leaves and one flower...... The medicine is mild, it has a neutralizing effect, there is no need to worry, you can put fifty plants!"

Zhang Heng kept grabbing the elixir and threw it into the Dan furnace.

The medicine boys were fanning the wind on the side, obviously very hot, but they were in a cold sweat, Zhang Heng's method of adding elixir opened their eyes.

"Master, is it really okay for you to put so many elixirs?"

The medicine boy wiped his sweat and asked.

Ordinary people are cautious in alchemy, they have never seen such a barbaric way of alchemy, at the beginning Zhang Heng still had words, and before joining the elixir, he also said a reason, but then he didn't look at it at all, grabbed a lot and threw it in!

"The Heavenly Soul Blood Melting Pill is not a mortal thing in the first place, and its alchemy method is completely different from ordinary pills...... "Zhang Heng was very calm, as if he felt that he had just done a trivial matter.

"Master's alchemy is unparalleled in the world, so we naturally don't dare to question anything...... What I'm worried about is that once something goes wrong with such an alchemy method, and the medicinal power explodes in the Dan furnace, will it ......" The medicine boys were full of panic.

"Will it be fried?" Zhang Heng shook his head, frowned and asked, "Are you suspicious of the demon lord?"

"Of course we don't dare, how dare we doubt the demon lord. The medicine boys were startled and said aggrievedly.

"What the fox concubine said, you didn't hear it, this Dan furnace will not explode no matter what!" Zhang Heng patted the Dan furnace casually, without any worry in his eyes: "Who is the demon master?

"He said that the Dan furnace will not be fried, so it will definitely not be fried!"

"If you have this kind of worry, it means that you are questioning the demon lord!"

When the medicine boys heard this, they hurriedly showed a look of anxiety, shook their heads and said they didn't dare.

At the same time, they also agreed with Zhang Heng's statement in their hearts.

"That's right, the demon lord said that this Dan furnace wouldn't explode anyway, in that case, what are we worried about?"

Thinking about it like this, the medicine boys were even a little ashamed, obviously the fox concubine had already said it so clearly, but they were still not at ease, this was really disloyal to the demon lord...... I really shouldn't have such thoughts.

With guilt, the medicine boys began to fan the wind even harder, and the flames burned brightly, and soon the elixir was swallowed.

At this time, Zhang Heng stopped moving, he sat cross-legged in front of the Dan furnace, closed his eyes and recuperated.

The medicine boys only knew that he had spent a lot of energy and needed to recover, but they didn't know that a dangerous thought was spinning in Zhang Heng's mind.

"Actually, I still have a means, that is, to add the Heavenly Immortal Broken Intestine Grass to the elixir......

The Heavenly Immortal Broken Intestine Grass is a treasure that Zhang Heng got from the Lingbao Sect.

At the beginning, he helped Lingbaozong go to the Vatican, carry the holy mountain, and complete the gambling contract, and the Heavenly Immortal Broken Intestine Grass was one of the rewards given to him.

The power of this herb is extremely great, as the name suggests, the immortals can break the intestines, if the demon lord eats it, he will definitely die!

With Zhang Heng's alchemy, it is not very difficult to join this poison unconsciously, and he is more absolutely confident that he will not be discovered by the demon master......

But the problem is that even if the demon lord dies, then he can't escape, and the result must be killed by the angry demon kings.

This trick is a burning of jade, and Zhang Heng does not want to use it as a last resort.

"I hope you don't push me to that point......" Zhang Heng muttered in his heart.

He has no hatred with the demon lord, but he has fallen into an embarrassing situation now, he has prepared for the worst, if he can't find a chance to escape, then he will be burned with him.

The conceited demon lord would never have thought that Zhang Heng, who was only a golden pill cultivator, would have the poison that killed him!

Seven days later, Zhang Heng opened his eyes.

He began to add elixirs again, and this time, he added more than last time, and the elixirs melted in the Dan furnace and turned into a thrilling energy......

But this time, the medicine boys no longer suspected anything, they just waved their fans hard.

Anyway, the worst result is just the failure of alchemy.

What's there?

If you fail, you can refine again.

As long as you don't fry, it's easy to say anything.

This time, the process lasted for ten days, Zhang Heng's eyes were bloodshot, and he spent a lot of energy dealing with these elixirs.

However, as he threw the last elixir into it, the medicinal power in the Dan furnace, under the continuous mutual restraint, began to erupt for the first time!

Rumble!

There was a roar coming from the Purple Gold Heart Refining Furnace, and a huge Dan Furnace actually began to tremble.

This scene made the medicine boys very frightened.

"The demon lord said, it won't be fried, don't worry. ”

Zhang Heng closed the lid of the furnace and sat cross-legged in front of the Dan furnace.

A month has passed, and the roar in the Dan furnace is still the same, and the medicine boys have long been used to it, but today, the color of the Dan furnace has changed, and the original gilded appearance is gradually turning red at this moment......

"Don't be afraid, the demon lord said that it won't blow up ......"

This time, without Zhang Heng saying anything, the medicine boys began to comfort themselves.

Two months have passed, and in a blink of an eye, Zhang Heng has been in the Medicine Hall for almost four months, but today, the entire Zijin Heart Refining Furnace has completely turned red!

And in the Dan furnace, it is like a thunderstorm rolling in the sky, constantly making terrifying sounds.

"The demon lord said that the Dan furnace will not explode...... Is it?"

The medicine boy trembled, and in the end, he was a little unconvinced.

Now this situation is obviously wrong!