In the upstairs room of the nightclub, Zhang Dachuan's whole body was soaked with sweat, and the beads of sweat on his forehead continued to drip like rain. His face was slightly pale and tense.

He had to admit that he had far underestimated the difficulty of alchemy!

Without the Dan Furnace, even the most basic tonifying elixir in the prelude to alchemy would be extremely difficult to refine.

What's worse is that he doesn't even have a special Danhuo!

Although Danhuo is not the legendary true fire of Samadhi, it is by no means just a fire, it needs to maintain a stable high temperature for a long time, in short, it is efficient and long-lasting.

According to the records in the first part of alchemy, when the ancients made alchemy, they usually used a special black flame stone.

Judging from the description, it is somewhat similar to coal, but this black flame stone is obviously not coal, because its burning flame has a trace of heaven and earth spiritual power.

These spiritual powers are entangled in the flames and applied to the Dan furnace, which can well maintain the temperature of the Dan furnace, and at the same time protect the spiritual energy in the alchemy materials, so that it can better condense into Dan.

But now Zhang Dachuan doesn't even have a Dan furnace, let alone find such a rare thing as a black flame stone.

After thinking about it, he finally found a way to take a trick -

Liquefied natural gas!

Although this thing is not as good as Black Flame Stone, as long as the gas output is stable, the temperature at which it burns is very stable.

Even ordinary natural gas for household use can reach high temperatures of 1,000 degrees Celsius.

At such a temperature, it is basically enough for alchemy.

Fortunately, nightclubs provide snacks, chips, pork cutlets and the like, equipped with kitchens, and naturally installed with natural gas pipelines. The suite he was in was for guests to rest, no worse than the presidential suite in a five-star hotel, and also had a kitchen.

Zhang Dachuan turned on the natural gas stove on the stove, adjusted the power to the maximum, and then mobilized the Gang Qi that the martial arts master could condense to envelop the stove, gathering the range of flames burning on the stove, and stabilizing the temperature at a high level as much as possible.

Subsequently, he took out the spirit grass, also wrapped it in gangqi, and directly crushed the spirit grass, discarding the impurities, leaving only the juice containing the essence of the spirit grass.

After making these preparations, with the special ability to see the aura of heaven and earth with the naked eye, Zhang Dachuan slowly attracted the aura of heaven and earth according to the void alchemy method recorded in alchemy, that is, the method of alchemy of the Wudan furnace.

He let these heaven and earth aura gather and wrap the spirit grass juice, forming a ball-sized ball of aura light-

Pill embryos!

This is also the reason why Wang Tiebiao will sense the fluctuation of spiritual power and the convergence of heaven and earth aura.

In order to attract these aura, Zhang Dachuan almost had no reservations, and exerted his full strength, the coercion of the martial arts master, is it ordinary?

While constantly attracting the spiritual energy of heaven and earth to merge into the "small ball" wrapped in the spirit grass juice, he placed this ball on top of the natural gas flame that was gathered by the Gang Qi.

For more than an hour, he didn't dare to relax in the slightest, and concentrated on attracting the spiritual energy, and at the same time, he had to carefully use the appropriate amount of heaven and earth spiritual energy to squeeze those spiritual grass juices, so as to cooperate with the Danhuo refining.

Only in this way can the essence of the spiritual grass in those juices continue to merge with the spiritual energy, becoming condensed and strong.

It's the ultimate compression process!

The requirements for alchemists to control the aura of heaven and earth are extremely high, and if the strength is too heavy, the entire pill embryo will be squeezed and exploded, and the success will fall short. If there is less aura of heaven and earth fused, the refined pill will become a residue, unable to condense into a pill, and the essence will escape.

Zhang Dachuan has failed twice in a row, and the value of the wasted spirit grass is more than 10 million.

Now, this is his third attempt.

With the experience of the previous two times, he already had a little experience in controlling the temperature of fire, and at this moment he was carefully pulling the aura of heaven and earth, like Jingwei reclamation, smelting and squeezing the elixir embryo little by little from all directions.

In this process, he must be highly concentrated from the physical body to the spirit, and he does not dare to be distracted in the slightest.

As time passed, more than two hours passed, and the embryo of the pill continued to shrink, and finally slowly became solidified.

Zhang Dachuan did not dare to relax, and continued to control the aura and furnace fire, and continued to refine.

Another half an hour passed before he suddenly let out a low sigh, and before the embryo was about to be completely condensed into a pill, he instantly cut and condensed it with his qi, dividing the entire embryo into five parts.

Above the blue flames, five pills took shape in an instant!

Zhang Dachuan stretched out his hand and grabbed the white jade vial that had been prepared a long time ago next to him, swept it through the air, and sealed all five pills into the jade bottle, and then he breathed a heavy sigh of relief.

He wiped the sweat from his forehead, turned off the stove, turned back into the living room, and sat down on the couch.

"Damn, refining a Dan is more tiring than me fighting!"

He took out a tissue to wipe his sweat, and by the way, he picked up the already cold tea on the coffee table and drank it in one gulp, and then observed the tonic elixir that had just been successfully refined.

In the white jade bottle, the five pills were the size of a little thumb nail, and the whole body was black, showing an irregular oval shape.

"This ...... How is it similar to Grandpa Jigong's leg-stretching staring pill? ”

Zhang Dachuan complained secretly, and couldn't help frowning.

The appearance of this elixir is really not good.

According to the records in the Fox Immortal Inheritance, the high-quality pill, regardless of the color for the time being, should be round like a pearl in shape, and the higher the quality, the surface of the pill will also show a natural and beautiful Dan pattern, as if the laws of heaven are imprinted on it.

But refining this by yourself is really too obvious.

But success should have been a success.

Zhang Dachuan said secretly:

"Anyway, since it's been refined, let's eat one first and try it, at least it smells like a herb."

Thinking like this, he poured out a grain from the jade bottle and threw it directly into his mouth.

As the tongue touched the surface of the elixir, the dry and dull feeling, the same taste as chewing wax, made Zhang Dachuan's brows furrow even tighter.

He took two casual bites and swallowed it.

The next moment, his brows jumped suddenly, and his face instantly showed excitement.

Useful!

After the pill entered his body, it seemed to melt immediately, becoming a huge heaven and earth aura, which poured into his limbs and hundreds of bones in an instant.

Zhang Dachuan didn't dare to delay, immediately sat down, began to run the exercises, and quickly refined the medicinal power.

He was pleasantly surprised to find that the Heaven and Earth Spiritual Qi released from the pill was much easier to refine than the Heaven and Earth Spiritual Qi absorbed from natural cultivation!

In just a few minutes, all of these heaven and earth auras were absorbed by him. In the Ren vein, one of the two main veins in the body, the missing energy after the breakthrough was completely replenished and filled.

As the medicinal effect was all refined, Zhang Dachuan opened his eyes, and his eyes bloomed with a bright look!

Although the tonic elixir refined by himself looks very crotch-pulling, and the taste is not good, the medicinal effect is very powerful!

Only one made up for his previous lack of energy, making him a martial arts master in the true sense.

"Hahaha, since then, the sea is wide and the fish jumps, and the sky is high for the birds to fly!"