Zhang Shi took Feng Yun to the foot of a remote mountain.

"This is a dark room that I opened up for the purpose of cultivating spells when I was not yet an inner disciple." As he spoke, Zhang Shi took out a finger-sized door key from his waist and inserted it into a crack in the stone.

Seeing a half-human-high mountain stone flipped over, Feng Yun saw that this mountain stone looked huge, but in fact, only a part of it was prominent, which was inlaid on a flap.

Zhang Shi took Feng Yun and bent down into it.

After Zhang Shi lit the oil lamp in the dark room, Feng Yun took a look around, the place was not big, relatively simple, much smaller than the house of the registered disciple he lived in, but it was enough for one person to use, and Zhang Shi also set up a gap for ventilation, and it was completely impossible to see that there would be a dark room here from the outside.

"I didn't expect Senior Brother Zhang to have such a skill." Feng Yun said secretly in his heart.

The most special thing in the dark room is probably a large pit that comes out of the room, enough to accommodate an adult to bathe in it, and there are many pebbles in the pit, Feng Yun thought of the blood refining process recorded in the "Hundred Flames Tempering Body Sutra", "I will have ...... in this pool in a while"

When Feng Yun looked around, Zhang Shi had already taken out the various things he wanted to use from the treasure bag and placed them on the low table in the room.

"Let me ask again, have you memorized the process of blood refining?" Zhang Shi asked in a deep voice.

"Remember!"

Zhang Shi nodded and asked Feng Yun to take off his clothes, he couldn't wear clothes when he was refining blood.

Feng Yun stripped naked, a little embarrassed. However, Zhang Shike didn't pay attention to him, but picked up a porcelain bottle on the table, pulled the stopper from the mouth of the bottle and poured the liquid medicine into the pool covered with pebbles.

After preparing the medicinal liquid, Zhang Shi turned his head to look at Feng Yun, pointed to the cork on the table and said: "Use these to block your ears and nostrils, this is your first time refining your body, and the inside of the acupuncture can't withstand the soaking of the medicinal liquid, so you can only use a plug to temporarily seal your acupuncture." Remember, don't open your mouth except when you look up to breathe, otherwise the liquid will hurt your qi. ”

Feng Yun looked at the pool of medicinal liquid, it was obviously the height of summer, but the white mist kept rising, Feng Yun didn't dare to imagine how hot it would be. Zhang Shi said that he couldn't open his mouth, which meant that he had to endure the pain and not scream.

Feng Yun took a deep breath and stuffed the cork on the table into his ears and nostrils. After Feng Yun was ready, Zhang Shi picked up a small jade bottle on the table, took out a blue pill from it, and handed it to Feng Yun.

"This is the Yunshui Heart Protecting Pill mentioned in the Hundred Flame Forging Body Sutra?" Feng Yun thought in his heart. This Cloud Water Heart Protecting Pill can protect a cultivator's internal organs when he is refining his blood, and he will not be injured by his fire qi.

Feng Yun took the pill and took it down, the pill worked quickly, and after a while, Feng Yun felt a soft coolness in his stomach spread.

Under Zhang Shi's gaze, Feng Yun came to the stone pool, emitting white smoke of red medicinal liquid, saying that he was not afraid that it was fake. Feng Yun gritted his teeth, stretched out his right foot and stepped in.

"Hmm!" Feng Yun let out a muffled roar, and countless blisters were scalded out the moment his right foot reached in!

Feng Yun gritted his teeth, his nostrils were gagged, and he could only pant heavily with his mouth. At this time, there was no way out, Feng Yun was so ruthless that the whole person stood in, the liquid did not pass his knees, and there was a heart-piercing pain in his feet, and there were endless bursts of pain.

He trembled all over, and soaked his body little by little, he only felt that the blisters on his body were bursting, and they were slowly treated by the liquid, and then new blisters appeared, so his body soaked in the liquid was constantly tormented by this pain and itching.

Feng Yun's head was covered with cold sweat now, he was already sitting in the pool, the liquid liquid overflowed his chest, he opened his mouth and gasped hard, enjoying this last good time. He glanced at Zhang Shi, whose face was sinking like water, and finally took a deep breath and soaked the whole person into it.

The pain on his face almost made Feng Yun lose control of his face, he was not only itching and unbearable now, but also very hot, he felt like he had been put into a frying pan, and the truth was indeed very similar.

At this time, Feng Yun no longer had a good piece of skin on his body, and his eyes, nose, mouth, and ears were all closed, making his sense of touch very sensitive, but this was a terrible torture. Feng Yun clearly felt that his skin was blistered and festered, and then with the immersion of the medicinal liquid, the wound slowly healed, and only a trace of coolness from the Yunshui Heart Protecting Pill in his internal organs made him feel a little comfortable. But gradually, Feng Yun's senses became a little numb, followed by a period of sleepiness, and Feng Yun's consciousness became a little blurred.

Zhang Shi looked at Feng Yun's miserable situation, his heart was anxious, he didn't expect the process of refining his body to be so tragic. As a burst of bubbles rose from the pool, Zhang Shi couldn't help but beat the ground and shouted at Feng Yun in the pool: "Wake up Feng Yun!" Don't faint! Wake up! "In case, he can only take action to fish Feng Yun out, but if this is the case, everything will fall short, and it will also leave a demon in Feng Yun's heart.

Zhang Shi's divine consciousness transmission woke Feng Yun up to the end, Feng Yun's consciousness woke up, and he immediately sat up, stretched out the medicinal liquid from his head, and tried his best to breathe fresh air.

Then he took a deep breath and plunged into the liquid again. Zhang Shi also breathed a sigh of relief and wiped the sweat that didn't exist on his head.

"It's good to get through it, get through this first battle, and you'll be much sober later." Zhang Shi muttered.

Feng Yun only felt that it was so dangerous, he almost fainted, if it weren't for the Yunshui Heart Protector Pill and Senior Brother Zhang's divine consciousness transmission, otherwise the consequences would be unpredictable.

After gradually getting used to this kind of pain and itching, Feng Yun found other troubles, as the soaking time passed, the fire spirit in the liquid medicine had soaked through the skin and flesh, although the Yunshui Heart Protection Pill was still effective, blocking this fire spirit outside, but he still felt that his internal organs were surrounded by flames, which was extremely uncomfortable.

This fire spirit could not be absorbed by flesh and blood, so he could only endure and wait for it to dissipate automatically after the blood refining, and suddenly a flash of inspiration flashed in Feng Yun's mind: "It can't be absorbed by flesh and blood, but it can be refined!" Thinking of this, Feng Yun almost opened his eyes happily.

Feng Yun got up again and changed his breath, silently carrying the Liangyi Xuanshen Treasure Sutra in his heart. In the past few days, he has begun to quietly cultivate the Liangyi Xuanshen Treasure Sutra, but because the meridians are full of heaven and earth and magazines, the progress is very slow, but every time he feels the yin death resentment in his body being extracted and refined into a little bit of Xuanyin True Yuan, he feels extremely happy.

As expected, the fire spirit that invaded Feng Yun's body was refined little by little, and then turned into a slight pure yang true element, and at the same time, Feng Yun also felt pity. "Hey, it's a pity that my meridians are not cleared now, the Qi Sea Dantian has not been opened, and there is no place to put the refined true yuan, which can only be used to nourish flesh and blood, but this true yuan is enough to recover the injury of one finger."

So Feng Yun didn't bother to think about it, so he used those Xu Chunyang Zhenyuan on the wound of his right index finger.

But what Feng Yun didn't expect happened, as he nourished his flesh and blood with pure yang true yuan, the wound on his index finger recovered faster, and the speed of absorbing the medicinal power of the medicinal liquid suddenly became faster, and he clearly felt that the way his index finger absorbed the medicinal liquid had changed.

Previously, the medicinal liquid could only be slowly absorbed as the wound healed, but now the index finger that had been nourished by the Pure Yang True Yuan actually began to actively absorb the medicinal power in the medicinal liquid, which was consistent with some of the descriptions Feng Yun had seen in the Hundred Yan Quintification Body Sutra. After many blood refinements, the flesh and blood will only take the initiative to absorb medicinal power to make the bloodline more refined after a certain degree of change.

"This is really ......" Feng Yun was also dumbfounded, "These two Yi Xuanshen Treasure Sutras are also too magical, it can be said to be infinitely useful, no wonder the chess elder said that the way of the two instruments is all-encompassing, and this exercise is like cultivating ten thousand methods." ”

I don't know how long it took, Feng Yun had forgotten to change his qi a few times, and the medicinal power of the medicinal liquid in the pool was finally absorbed by him, leaving only a pool of muddy water full of impurities.

Feng Yun also gradually felt the change in the medicinal liquid in the pool, sat up, slowly opened his eyes and looked at the pool water under him, and spit out a mouthful of turbid air.

"It's finally over." Feng Yun said, removing the wooden stoppers on his head one by one with trembling hands, and feeling the beautiful fresh air with his nose.

Feng Yun looked at Zhang Shi and found that Zhang Shi was also looking at him with a strange expression, and the corners of his mouth trembled as if he was enduring something.

"What? It can't be that I'm disfigured! Feng Yun hurriedly touched his face, although his face was covered with blisters and wounds before, the medicine also treated him well, at least he didn't feel any pain in the wound on his body now.

"No, Senior Brother Zhang, what are you laughing at?" Feng Yun felt the smoothness on his face, and even felt even smoother than before the blood refining.

But immediately Feng Yun sensed that something was wrong, and he saw the hair floating in the pool, so he reached out and touched his head.

Then Feng Yun was stunned, he had no hair. It turned out that in the process of blood refining just now, his head was also full of wounds, his flesh and blood were blurred, and his hair naturally could not be spared and left Feng Yun one after another. And not only that, Feng Yun touched his eyebrows again, and it was as smooth as jade.

Now Feng Yun wanted to cry without tears, and now he was really Niu Shanmi, and he didn't have a single hair on his body.

"How do you see people......"

"Hahaha." Zhang Shi couldn't bear it anymore after hearing this, and couldn't help laughing.

Feng Yun also smiled bitterly.

After a while, Feng Yun dried his body and put on the straight jacket of the registered disciple, and he didn't need to look in the mirror to know that now he estimated that he had changed from a little Taoist priest to a little monk, "And it's also a little monk with no eyebrows." Feng Yun couldn't help but curse vulgarly in his heart.

Seeing this appearance, Zhang Shi couldn't help but laugh in a low voice, looking at his trembling shoulders, it was estimated that it was very hard to endure, Feng Yun found out for the first time that Zhang Shi still had such a childish side.

"Senior Brother Zhang, do you have any medicine that can grow your hair quickly?" Feng Yun asked with a bitter face.

"There's really no ...... about this"

After packing up everything, the two decided to leave the dark room, which was too small to move. But as soon as the two came out, Zhang Shi was also dumbfounded.

Feng Yun turned out to be a little celebrity.