"Third, when I am alchemizing, no one is allowed to be around!"

The third condition offered by Zhang Heng did not seem strange, but it made the two demon kings refuse without hesitation.

"It's impossible for us to agree to this condition!" The Green Python King had a cold face, unwilling to compromise at all.

"Yes, surnamed Zhang, there are some things that you should understand even if I don't say them...... Before, in the Demon Lord Cave Mansion, you made a big movement in your alchemy, is this normal?" The Yin Hades King looked indifferent, and said with a gloomy smile: "Only if I am on the side, can this happen!"

"However, I don't want to ......" Zhang Heng was also unwilling to back down, shaking his head and saying.

"You don't want to...... Aren't you a thief?" The King of the Netherworld showed a mocking look on his face, and said in his heart: "This kid really has a problem, knowing that I am on his side, I can let him have nothing to hide, so he wants to get rid of my surveillance!"

"There are some things I don't say, but you don't know what you know, in this case, I can only make it clear. Zhang Heng sighed and said, "The reason why I didn't let you be on the side is actually very simple, I'm afraid that you will steal the teacher!"

"Stealing a teacher?" the corners of Hades' mouth twitched.

"That's right, my Dan Dao level is extremely high, and there are countless Dan Dao secret methods, if you are on the side, stealing my Dan Dao, won't it make me suffer?" Zhang Heng said lightly.

Looking at his expression, there was no ridicule and contempt, but it seemed to be taken for granted.

"Presumptuous, what kind of thing are you? Huangkou Xiaoer, my dignified Yin Hades King will steal from you?" said angrily as if he had suffered a great humiliation.

"My strength is not as good as yours, but if you want to say that it is Dan Dao, you are not worthy of lifting my shoes, otherwise, will you refine the Heavenly Soul Melting Blood Pill?" Zhang Heng smiled coldly, looked at the Green Python King, and said, "Am I wrong?"

"Fourth, your Dan Dao is indeed inferior to the demon envoy. The Green Python King hesitated a little and spoke slowly.

She just told the truth, it was very simple, Zhang Heng could refine the Heavenly Soul Blood Melting Pill, but the Yin Hades King couldn't, from here, you can see the gap.

"Big sister!" the Hades King was even more aggrieved, but he couldn't say anything to refute it.

"Demon envoy, although what you said makes sense, but the fourth child is helping on the side, but the demon lord means. The green python king is not stupid, she chooses to suppress people with power: "Do you want to go against the will of the demon lord?"

Hearing this, Zhang Heng fell into silence for a long time before he slowly spoke.

"Okay, just steal the teacher, let me suffer a loss...... However, when I was refining the pill, I didn't need his help, he just needed to stand aside and be honest, otherwise he wouldn't understand anything, interfere with my alchemy, and destroy my pill, so don't blame me for telling the demon lord...... When the time comes, nothing good will be gone!"

The Netherworld King's cheeks twitched, and the hatred for Zhang Heng in his heart increased exponentially, how could he have been so humiliated?

Looking at Zhang Heng's meaning, it is clear that he is sure that he will steal learning.

But in his heart, he was clearly disdainful, how old was Zhang Hengcai? Where can the Dan Dao attainments be high? He Yin Hades King has studied the Dan Dao for more than a thousand years, how could he go and steal a junior from him?

Moreover, in Zhang Heng's humiliation, there was a hint of threat.

This made some of his original thoughts, but he couldn't help dispelling them, originally, he thought that he must continue to make things difficult for him when Zhang Heng was refining the pill, but at this moment, he was afraid.

In case a Heng broken jar is broken, the pill cannot be refined, and the responsibility is put on him, causing him to not get the cold night fruit.

Then the loss is huge!

As an enemy, Zhang Heng had every reason to do so.

The Green Python King didn't look at the look of the Netherworld King, nodded and said.

"No problem, we can agree to your conditions. ”

Zhang Heng glanced at the Yin Hades King with the eyes of a thief, and said in an instructive tone, "Go and prepare the quiet room and the Dan furnace for me." ”

The Hades King took a deep breath, finally suppressed the anger in his heart, lowered his head, blackened his face, and walked in front to lead the way.

Looking at his back, Zhang Heng's eyes also sank.

Having a Yin Hades King who can do alchemy by his side did have a certain impact on his plans.

Therefore, he must be anti-guest-oriented, so that the King of the Netherworld will have a jealous heart, at least, so that he can't make trouble during the alchemy.

After some rhetoric, the Yin Hades King was already awe-inspiring in his heart, even when Zhang Heng was refining the pill, there was something that made him suspicious, and he didn't dare to look for trouble at will, unless he was completely sure.

For Zhang Heng, this is enough, as long as the Yin Hades King does not dare to find fault at will, then with his Dan Dao, it is not difficult to hide a demon beast that has become a monk halfway.

The ashram had already been prepared, a wooden two-story attic located in the middle of the Netherworld's Cave Mansion.

In the attic, there is a pitch-black and cold Dan furnace.

When he looked at the Dan Furnace, there was a look of reluctance in the eyes of the Netherworld.

"This Dan furnace is good. Zhang Heng stroked it gently, revealing a satisfied look.

"Of course, this furnace was given by me in my early years and was rewarded by the demon lord, and its quality is no less than that of the Purple Gold Heart Refining Furnace...... On top of that, once a furnace fire is lit, its flames will automatically transform into Netherworld Cold Fire...... With this fire alchemy, it can effectively increase the rate of becoming a pill, and because the fire attribute is cold, the possibility of its frying furnace has also decreased a lot, and it is definitely a rare best Dan furnace!" The Yin Hades King showed a proud look in his eyes, obviously satisfied with his Dan furnace to the extreme.

"The demon lord said before that the Purple Gold Heart Refining Furnace wouldn't blow up, but it still blew up. Zhang Heng's words made his pride disappear.

He immediately looked at Zhang Heng vigilantly, what did this guy mean? Could it be that he was really going to blow up the Dan furnace?

The green python king came from the demon lord's cave, naturally he was not alone, he also brought a team of elite demon soldiers, there were dozens, the lowest were all big demon cultivators, and now they are arranged around the attic, which can be called heavily guarded.

Looking at such a strict arrangement, the Green Python King nodded and said.

"You can start alchemy, right?"

Zhang Heng sat down cross-legged and said.

"What's the hurry? I need to recuperate for a while to get adjusted. ”

After speaking, he didn't care about the two of them, sat down directly, and closed his eyes.

The two were dissatisfied, but they didn't dare to say anything, so they could only wait on the sidelines.

Seven days passed, and Zhang Heng finally opened his eyes.

The moment he opened his eyes, the momentum of the whole person suddenly changed, and he immediately changed from ordinary to grandmaster.

With a slap of his palm, the lid of the furnace flew up, and a finger swept over, and the real fire lit up the furnace.

The ancient lines on the pitch-black Dan furnace lit up at the same time, and the orange-red real fire was actually transformed into the color of forest white, which did not seem to have any warmth, but gave people a kind of warmth.

Zhang Heng flicked his fingers, and a lot of elixirs flew up and threw them into the Dan furnace.

The Netherworld Cold Fire immediately swarmed over and burned around the elixir.

"This technique is simply miraculous......

As soon as the connoisseur made a move, he knew if there was any, and the god of the Netherworld swept over, but the whole person was stunned.

With his ability, it can naturally be seen that Zhang Heng is an impurity in the refining elixir.

Theoretically speaking, the top-level elixir has very few impurities and can be directly used for refining, but Zhang Heng's technique is extremely clever, and the Netherworld Cold Fire is a dead thing, but it is flexibly applied by him, and the timing and techniques are all top-notch.

I saw wisps of black smoke, gradually floating from the elixir.

"The impurities have been expelled!" The King of the Netherworld was a little embarrassed, he said that he would not steal the master, but now he couldn't take his eyes off it, and really began to record Zhang Heng's methods.

This kind of alchemy method really opened his eyes and gained a lot.

In the next step, Zhang Heng began to melt the elixir.

All the elixirs, all floating, the impurities have been expelled, under the manipulation of the divine thoughts, began to melt, and the impurities have not been expelled are carrying out this step, he is multi-purpose, manipulating many elixirs, but it is done in an orderly manner, without the slightest flaw......

From the perspective of the Netherworld, all this is amazing, and he has learned a lot.

"I didn't expect this kid's Dan Dao attainments to have reached this level......"

The Yin Hades King wanted to steal the teacher, but found that the more he progressed to the back, he couldn't keep up with Zhang Heng's rhythm.

What does this mean?

Zhang Heng's Dan Dao attainments are too high, even if he is asked to watch and learn, he will not be able to learn!

This made the fire of jealousy in his heart immediately burn.