The voice is fluttering and flickering, as if it is close at hand, and far away from the world.

At this time, if Lu Yun opened his eyes, he could see that a stone door appeared at the bottom of the pool, and a big hole was exposed on the stone door, and a pair of eyes as clear as water were staring at him closely behind the big hole.

"Judging by this person's costume, it should be my Wen Cangmen outer disciple, and he seems to be a little familiar......" The person behind the big cave muttered, his beautiful face showing a look of doubt.

I don't know when this stone door was revealed at the bottom of this pool, Lu Yun didn't notice it at all, at this time, he was shocked by the sound of the person behind the cave for a moment, he immediately realized that something was wrong with him just now, and he didn't have time to think about who this sudden voice was at this time, and immediately kept his mind tight, immersed in the cultivation mantra of Yin and Yang Assimilation.

Time passed slowly, Lu Yun still sat cross-legged with his eyes closed, his hands pinched constantly, and the yin qi in his body was slowly absorbing and increasing, just when the yin qi absorption was about to reach its peak, the seal in his hand changed again, and suddenly the huge yin qi in his body slowly gathered from the limbs and hundreds of bones to the dantian.

At this time, Lu Yun could still feel the voice around his body that seemed to be a very real call in his ears, but he kept his mind tightly, did not dare to be distracted in the slightest, and gathered the yin qi absorbed in his body into the dantian to form a funnel-shaped yin qi vortex, with the continuous change of the pinching technique in Lu Yun's hand, the yin qi vortex in the dantian was rotating rapidly and slowly shrinking, until it was reduced to the same size as the gray bead next to him, Lu Yun's hand changed, and the vortex suddenly stopped rotating.

He was immersed in it and looked at it, which immediately made him ecstatic, this huge yin qi had materialized into a liquid-like existence.

"There is so much yin qi here, you can absorb and refine more, you can't miss this great opportunity!" Thinking of this, the cultivation mantra in Lu Yun's mind moved again, and the seemingly boundless yin qi in the Ten Thousand Yin Pool surged into Lu Yun's body at the bottom of the pool again.

At this time, Lu Yun's mind was already completely immersed in it, and all the interference from the outside world could no longer affect him in the slightest, time passed slowly, and Lu Yun's body sitting cross-legged was always motionless, but his hands were constantly changing under his closed eyes, and the yin qi in the pool poured into his whole body, and then gathered the dantian from the whole body, and finally he refined it into a mass of yin qi liquid.

In this way, Lu Yun continued to absorb the thick yin qi that had gathered in the pool for an unknown amount of time, and then refined it into yin qi liquid, and the time passed slowly in Lu Yun's absorption and refining.

Just as Lu Yun was absorbing the refining yin qi, Guan Shan, who was waiting behind the dilapidated stone wall above, gradually revealed a trace of impatience. Three days later, the impatience in his eyes grew stronger.

When he accidentally got the jade slip that recorded the news of this bottle of Zengyuan Pill three years ago, he checked the relevant information and knew that there was indeed an ancient cave mansion outside the southern city of Huomei City under the mountain, although he lost interest in this cave mansion, but he was very concerned about this bottle of Zengyuan Pill inside.

The Zengyuan Pill is a fourth-order pill, which is very helpful for the cultivation of the foundation building, and he has been waiting for a long time, and this time he came down the mountain to this cave to get this bottle of Zengyuan Pill.

He learned from the information that although the cold qi in this Ten Thousand Yin Pool was extremely strong, he felt that it was no problem to resist for a moment with Lu Yun's cultivation, and this time was enough time for him to find the bottle of Zengyuan Pill floating on the water of the pool.

It's just that what he didn't expect was that Lu Yun actually went down for so long and still didn't come up, which made him wait more and more impatiently.

"This kid can't be frozen to death inside...... Or is there a mistake in the jade slip's record, this kid has been looking for a long time and has not found it, so he was frozen to death inside?" Guan Shan's brows became tighter and tighter, his handsome face could no longer see the slightest sense of elegance, and the cold gaze staring at the gap in the stone wall flickered even more.

He was really a little troubled in his heart at this time, now the pill in the door was extremely rare, even if he was an inner disciple, he would only send half a bottle of Guiyuan Pill every month for cultivation.

If the Guiyuan Pill is taken by a Qi Condensation Stage cultivator, the effect is huge, but as a foundation building cultivator, this low-level pill has little effect, so when he learned that there was a whole bottle of the fourth-order pill Zengyuan Pill here, he waited for three years and finally waited for the day when the cave mansion opened, but he didn't expect to meet Lu Yun here.

I thought that he could use Lu Yun to get this bottle of Zengyuan Pill, and he could use the cold qi in Wanyin Pool to kill him, which could be described as killing two birds with one stone, but at this moment, he waited for three days, but he still didn't see Lu Yun come up.

"No, I have to go in and have a look, I must get this bottle of Zengyuan Pill! Maybe I can send that kid on his last journey!" Thinking of this, Guan Shan sneered, and with a movement of his steps, he walked towards the dilapidated stone wall.

Lu Yun crossed his knees and closed his eyes to run the Yin and Yang Assimilation Technique, and the endless Yin Qi in the Ten Thousand Yin Pool rushed straight into Lu Yun's body, gathered the dantian, and then refined into a mass of Yin Qi liquid. It wasn't until he realized that the yin qi liquid in the dantian could no longer fit that Lu Yun came to his senses.

"Actually refined into nine clouds of yin qi liquid......" Lu Yun came to his senses and took a quick look, which immediately surprised him, and then at the same time he found that the concentration of yin qi in the Ten Thousand Yin Pool had been reduced by half compared to before.

"I didn't expect that the yin qi in this place was absorbed by me so much!" Lu Yun was overjoyed in his heart, "If these refined nine clouds of yin qi liquid are dispersed and dissolved into the meridians of the whole body, I don't know how many layers my cultivation can be upgraded to?"

Thinking of this, Lu Yun couldn't bear it anymore, his fingers moved again, and suddenly a cloud of yin qi liquid in the dantian slowly flowed out of the dantian, gradually flowing to the limbs and hundreds of bones of the body.

Immediately after that, the second mass of yin qi liquid also flowed to the whole body......

The third regiment ... Fourth Regiment ......

After about half a pillar of incense, Lu Yun's eyes that had always been closed finally opened, and a trace of irrepressible joy flashed in his eyes.

"I didn't expect that these nine clouds of yin qi liquid were stronger than the cultivation within the aura vortex generated by the gray bead in my body, which made me improve my cultivation by two layers at once, and now my cultivation has reached the eighth layer of the condensation period, which is comparable to when I didn't refine the power of extreme yang before!"

Lu Yun couldn't help but think when he was excited.

"It's just that the eighth layer of the Qi Condensation Period at this time is definitely much stronger than the eighth layer of the Qi Condensation Period at that time, and now the power of the Extreme Yang and Yang in the body is all condensed through the Yin and Yang Assimilation Technique, if there is no condensation, my current cultivation should be comparable to the monk of the tenth layer of the Qi Condensation Period!"

At the same time, the person behind the big hole in the stone gate at the bottom of the pool also showed surprise, and there was a strange look inside.

She looked at Lu Yun and finally remembered who he was, "It turned out to be him...... I didn't expect that the true cultivation of the ruined disciples in this sect was so high, I'm afraid it was comparable to the cultivation of the early stage of foundation building!"

Just when this person was frightened, a white figure floated down on Wanyin Pond, and when he felt that the yin qi here was not as thick as recorded in the jade slip, a look of surprise flashed in his eyes.

This person is Guan Shan, he cultivated to the peak of the early stage of foundation building, and he can already walk at low altitude against the wind, at this moment he is floating on the pond water, while running his cultivation to resist the cold air of this place at the same time, his eyes swept around.

This sweep suddenly surprised him again, "I don't see this kid's figure...... It's not going to die like there's no scum left, is it?"