As the whistling continued outside the cave, everyone was silent and focused on cultivating. From Grey's perception which was carefully watching each and every one of them, he could notice some peculiarities about them.

For example, he noticed that the Qi Accumulation cultivators sat close to each other. As if they were already acquaintances, but they did not talk as not to anger the Foundation Establishment cultivators.

The Foundation Establishment cultivators, meanwhile, were very afraid of the Nascent Soul Transformation expert in their midst. Although his eyes were closed and he had not moved even an inch since Gret arrived, they were still in edge that he may become angry later.

But then Grey noticed the Nascent Soul Transformation cultivator. As he tried to gaze at him with his perception, Grey felt his perception shudder and almost collapse. That made him to hastily cull it back.

From this short observation, Grey could see that the Nacent Soul expert created a balance in the cave.

With his presence, the Foundation Establishment cultivators did not dare to trample the Qi Accumulation cultivators, and with the Foundation Establishment cultivators, the Qi Accumulation cultivators did not dare right step out of line. Some pretended to cultivate even when they didn't want to cultivate. Just to make the atmosphere not seem tense.

Seeing this, Grey grew more relaxed and began to fully enter a semi-conscious state. His subconscious drifted deep into his body to study the peculiar changes that were happening right now.

As the Whistling was going on, Grey felt the dense spirit energy slowly rise. The spirit energy began to rise and slowly accumulate in the cave.

The Qi Accumulation cultivators did not notice this acute change, but the Foundation Establishment certainly did. They no longer bothered about the Qi Accumulation cultivators and began to diligently cultivate. The Nascent Soul Transformation expert did not even seem to shake at this occurrence, but his brows did crease into a frown.

As the spirit energy continued to rise, Grey felt the Cold yin energy that was mixed in with corrosive substance also rise as well.

In fact, it was as if the Cold yin energy was dissociating itself from the corrosive substance to be at it's purest form.

And so, along with spirit energy, there was another type of energy in the cave. But unlike spirit energy which was in every corner of the cave, the cold yin energy stuck closer to the entrance of the cave.

Because Cold yin energy was very hard to recognize, and even harder to cultivate, the Foundation Establishment and Qi Accumulation cultivators did not notice any change, apart from the fact that another strange energy filled the cave.

Grey was not sure about the Nascent Soul Transformation expert, partly because he could not see his face. And because it was unreadable.

And like that, Grey continued to absorb the spirit energy that filled the cave. His body greedily absorbed the spirit energy like a dark, bottomless abyss.

Even the Cold yin energy volunteered to enter his body as well, but Grey had to force himself to resist the Cold Yin. Because if he absorbed too much cold yin, his level would skyrocket, and he would be forced to advance to Foundation Establishment in order to save his life.

But even as Grey tried to resist the cold yin energy, it's still willingly went towards him. Seeing this, Grey was dumbfounded and couldn't help but smile inwardly.

'It's spirit energy that I wish i could willingly abosrb deep into my body. I don't need to absorb Cold Yin energy anymore.' Grey muttered inwardly.

But he kept cultivating diligently while keep his perception locked unto everyone. This continues for several minutes, and just as the one-hour mark was about to pass, Grey suddenly felt the Cold Yin energy enter his body without his will.

'Huh, what's happening!?' Grey asked inwardly as he tried to stop his body from absorbing the cold Yin energy, but his body didn't seem to listen and continued to wholeheartedly devour the Yin energy in the cave.

This continued for several moments before Grey started to panic. At this point, his body was absorbing the Yin energy while completely ignoring the Spirit energy that was more plentiful in the cave.

As Grey's brows creaser into a frown, he felt the air around him begin to turn more cold and chilly. As the whistling winds echoed outside, Grey felt as if he was put in a freezer. But instead of Cold air entering his body, it was being emitted from his instead.

This continued in Grey's panic. His dark hair began to be covered in frost. Same with his eyebrows. His sallow face became even more paler and started to turn sky blue.

At this point, Grey was starting to look like an ice statue. As everyone in the cave felt the temperature begin to drop, they looked at the source and saw Grey emitting freezing chills.

His eyes were frozen solid, and his teeth chattered silently. 'What the heck is going on!' Grey said inwardly. Feeling everyone's gaze on him, Grey struggled to stop the Cold yin energy from entering his body, but to no avail.

In fact, it even seemed to surge into his body with more fervor than it already was. After this, Grey began to feel that his body was becoming bloated. His blue skin began to bulge and cracks appeared on his skin.

Everybody looked at Grey with stunned expressions on their faces. Grey bit down on his lips silently to endure the pain of his body breaking and his skin tearing.

Seeing everyone's gazes on him, Grey couldn't determine who it was that made this strange things to fall in him.

But everyone including the Nascent Soul Transformation expert was stunned. They could not tell if Grey was doing this purposely, or whether he couldn't control it.

'Shit! At this rate I'll explode!' Grey lamented inwardly. At a thought appeared in his head, Grey's eyed held a bright glint. He was immediately decisive and knew what to do.

Without any hesitation, Grey stood up and pushed open the boulder blocking the entrance to the cave. Outside, the whistling sandstorm was still in a frenzy.

The moment he opened the cave entrance by even a small crack, a large amount of sand flew in.

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