When Li Xiaoyu came out after taking a shower and getting dressed, Xu Bansheng had completely regained his calm.

In his heart at the moment, there was only the pill that was about to be successfully refined and save Fang Lin's biological father's life.

That pill is called the Pill of Returning to Heaven after Death.

This elixir, even Lin Qian has never been successful in refining, he once tried to refine it, but he ended up with the fate of a Dan furnace being blown up.

That time, Lin Qian's long beard for I don't know how many years was blown up, and his hair was not mentioned. That is to say, Lin Qian's skills are profound, and if he is replaced by someone else, he will be blown to pieces together with the Dan furnace.

Since then, Lin Qian has never tried to refine the Heavenly Pill of Rebirth. In his words, it is, "Lao Tzu is refining life-saving things, not life-saving things." This thing will only kill you, and I won't play anymore."

What Fang Lin said before was the truth. Xu Bansheng was not completely sure.

After that time, although Lin Qian said that he would never refine the Heavenly Pill of the Past Birth Again, but this powerful anti-heaven pill had a formula that mostly used ordinary medicinal materials, how could he not study it in detail? Although he didn't do it again, Lin Qian also relied on his powerful alchemy skills to improve the steps of refining the Heavenly Pill of the Past Death, which made Xu Bansheng's refining a lot more certain.

Among the medicinal materials needed to return to Tiandan in the past life, there are only two flavor formulas, which are relatively rare.

One is called ebony.

Ebony is ebony that has been struck by lightning. Ebony is known as gloomy wood, which is a carbonized wood formed after tens of thousands of years of complex conditions after being buried in the soil due to natural disasters.

This kind of wood is already rare, and it is even rarer to be struck by lightning.

However, this is not a particularly difficult thing for people in the Daomen. As long as there is a piece of ebony in hand, it is not difficult to use the Dao method to guide the thunder to strike. Moreover, modern technology has long been able to simulate the effect of lightning strikes, and high-voltage discharge hitting ebony is not fundamentally different from lightning strikes.

When Xu Bansheng made this request, Fang Lin and the big leader felt strange, but any strange request made by the Taiyi faction leader Zhenren seemed to them to be the only way to do it.

Ebony is very precious to ordinary people, but for a country, it is still very easy to obtain.

The big leader was also worried that the simulated electric shock would not achieve the effect Xu Bansheng wanted, so he specially sent someone to send the ebony to a place where it was thundering and raining at the time, and used manpower to guide the thunder to make it bombard the ebony, and then sent the ebony to Wudong and handed it over to Xu Bansheng.

Seeing the ebony where the entire section was completely struck by lightning, Xu Bansheng said in his heart that this material was enough to refine the Heavenly Pill for more than a hundred times, and the big leader was really generous.

The other is something called the Burning Sun Fruit.

But don't be fooled by its name, the Burning Sun Fruit is not a fruit, but a rock that grows deep underground, accompanied by oil.

Relying on pure manpower, it is impossible to get this kind of rock called Lieyang Fruit, so Lin Qian once felt that the formula of the Heavenly Pill of Returning to Life was wrong. It can't be said that the ancients could really go to the sky and enter the earth, oil is usually located more than two kilometers below the surface, this depth can go down to humans, but if you want to find the sun fruit in the oil, it is simply a fool's dream.

Considering that the oil was named after Shen Kuo, perhaps the ancients had already mastered the way to extract the Burning Sun Fruit from the oil, and it was not necessarily, Lin Qian dispelled his doubts.

The large-scale exploitation and application of oil in modern society has made it easy to obtain the fruit of the sun.

The composition of the Lieyang Fruit has not been analyzed so far, but its internal structure is extremely unstable, and it is fine at room temperature, once the ambient temperature changes, a Lieyang Fruit weighing about 50 grams can produce about 30 kilograms of explosive equivalent energy.

The most plausible explanation, or speculation, for the Burning Sun Fruit is that the Burning Sun Fruit is oil, but it is simply oil that has been squeezed and concentrated due to the movement of the earth's crust. The strong pressure causes the oil to condense into a solid at room temperature, and changes its molecular structure, so that its specific gravity increases greatly. At the same time, the energy released by its complete combustion is also greatly increased.

Of course, Xu Bansheng didn't care about these explanations, all he cared about was that there was this thing in the recipe for refining the Heavenly Pill of the Past Lives.

It is almost impossible for ordinary people to obtain the Blazing Sun Fruit, but for countries that are aggressively exploiting oil, it is simply a matter of taking it as you go.

Back then, Lin Qian simply sneaked into a national-level research institute and took away the Lieyang Fruit weighing one kilogram, of course Xu Bansheng could do the same, but with the big leader here, it was more reliable for him to hand it over to the big leader.

After Lin Qian's countless deductions and improvements, the difficulty of refining the Heavenly Pill has been reduced a lot, and now, the Ding Furnace that has been tested will undoubtedly bring a higher success rate to refining this pill.

But even so, Xu Bansheng would never dare to say that he had a 100% success rate, even if he confirmed that refining this rebirth back to heaven pill this time, there was no possibility that it would not be successful.

He wasn't deliberately showing the difficulty, nor was he deceiving Fang Lin, alchemy was a matter of deviation at any time, and Xu Bansheng was never used to talking to the fullest.

Moreover, even if he succeeded in refining the Heavenly Pill of Returning to the Afterlife, it was not 100% able to save Fang Lin's father, this kind of thing would require a little luck after all.

Burning a furnace of incense again, surrounded by the curling incense, Xu Bansheng began to refine the rebirth back to Tiandan.

After taking two Qi Replenishing Pills in a row, Xu Bansheng felt that his essence had reached the level of overflowing.

He still lit the red pottery stove that had been replaced with pine wood by Li Xiaoyu as he had done when he was refining the Qi Replenishing Pill before.

All the steps seemed to be the same as refining the Qi Replenishing Pill, Xu Bansheng methodically added various medicinal materials to the Ding Furnace, and then watched them turn into liquids, still waiting until they were bubbling twice, he poured most of the medicinal materials into it.

Agitating the internal force, as if adding fuel to the fire, the liquid of the Chinese medicinal materials of the Ding furnace began to boil wildly again, and the Ding furnace also began to shake from side to side, as if trying to break free from the shackles of Xu Bansheng's hands.

It's just that this time, Xu Bansheng took much longer than when he was refining the Qi Replenishing Pill, and his face was ruddy as if he was about to drip blood at any time.

Xu Bansheng's expression became a little painful, as if he could not continue, the medicinal materials added this time were more than ten times that of the Qi Replenishing Pill, and the internal force he needed was also dozens of times that of the Qi Replenishing Pill.

"Dan!" Xu Bansheng squeezed out a word from between his teeth, and Li Xiaoyu immediately took out a Qi Replenishing Pill from the jade bottle and stuffed it into Xu Bansheng's mouth.

After a Qi Replenishing Pill, Xu Bansheng's face was so red that it was almost dripping blood, the color was slightly lighter, and the painful color on his face gradually disappeared.

Li Xiaoyu already understood, as long as Xu Bansheng showed a little pain, she would feed him a Qi Replenishing Pill.

The internal force poured into the Ding Furnace continuously, but the Ding Furnace seemed to have life, beating wildly, eager to break free from Xu Bansheng's grasp.

After eating two more Qi Replenishing Pills, Xu Bansheng finally calmed down the Ding Furnace, which showed that the preliminary alchemy work had been completed. And next, it is the most dangerous moment to refine the Heavenly Pill of the Past Birth.

With both hands letting go of the Ding furnace, Xu Bansheng observed the situation in the Ding furnace through the small holes on the Ding furnace, and then took some pine wood, and replaced the pine wood that had burned to the end in the wind furnace one by one.

He took a small porcelain vase, poured out a little of the scorched wood powder in the bottle, and then carefully sprinkled it into the inside of the furnace from the hole in the lid of the Ding furnace.

As soon as the scorched wood powder in his hand was sprinkled, Xu Bansheng immediately held the Ding furnace tightly with both hands, and shouted in his mouth: "Dan, two!" ”

Li Xiaoyu didn't dare to slack off, and immediately took two Qi Replenishing Pills and put them into Xu Bansheng's mouth at the same time.

Xu Bansheng tried his best to catalyze the Qi Replenishing Pill, and continuously injected the internal force of the muddy flood into the Ding Furnace.

Ding furnace is also dancing wildly again!

This time, Xu Bansheng once again spent two Qi Replenishing Pills to bring the Ding Furnace back to calm.

Xu Bansheng knew that the ebony wood had been completely integrated into the medicinal liquid, and the most dangerous moment was coming!

I think that at the beginning, Lin Qian failed at this step.

The Burning Sun Fruit is too violent, too difficult to control, and even the slightest fluctuation in the mood will make this refining success a failure. Moreover, the consequences of failure are extremely severe.

With Xu Bansheng and Li Xiaoyu's cultivation, they will not die after failure, but Xu Bansheng is sure that this floor will be blown up.

However, Xu Bansheng had done a lot of preparation work in advance, and the structure of the house could not be changed, but he had arranged several formations to control the explosion caused by the defeat within his two floors. Even if it spreads to other floors, it won't hurt anyone, at most some property damage.

There were still eight Qi Replenishing Pills left, and of course, this was minus the four that were placed in another jade bottle. Because there were four more than expected, Xu Bansheng decided to keep these four Qi Replenishing Pills to help Li Xiaoyu recover his essence after the alchemy was over.

Among these eight, it is also necessary to leave one to allow Xu Bansheng to recover his essence to help the old man after taking the Returning to Heaven Pill to dispense the medicinal power, which also means that Xu Bansheng only has seven Qi Replenishing Pills left to take.

Xu Bansheng suddenly felt a little nervous, this was a bit greater than he had expected before, he had thought that when he carried out the final step, there should be at least ten Qi Replenishing Pills left.

Now it seems that refining the Heavenly Pill of Rebirth is much more difficult than Xu Bansheng's estimate.

Of course, there is also Li Xiaoyu, her internal strength can also supplement Xu Bansheng, but it is very likely that even the four extra Qi Replenishing Pills will be used.

"Xiao Yu, there are four Qi Replenishing Pills in that jade bottle." After that, Xu Bansheng returned to a state of concentrating, his heart was empty, and there was no longer any distraction.

Only in this way can it be possible to refine the Heavenly Pill of the Past Life Return!