The more you advance, the lower the water temperature becomes, and in the end, it is simply freezing and biting, and even Qi An's physique is frozen very uncomfortable, which seems a little weird. Although the groundwater is indeed cold, it can't reach this level, and even the martial artist's physique is a little unbearable.

The cold is one thing, the most uncomfortable thing for Qi An is the darkness, there is almost no light, you can only rely on your hands and feet to grope forward, fortunately, this underwater grotto is very narrow, there is no fork in the road, don't worry about getting lost.

After about a hundred breaths, Qi An swam through the underwater grotto and into a huge space, where a faint blue light shone from above, barely allowing him to observe his surroundings.

This should be an underground lake, there is light above, Qi An immediately went upstream, regardless of the rest, first surfaced to change his breath.

When Qi An's head came out of the lake, he immediately saw that this was a confined space, wide at the bottom and narrow at the top, like an inverted bowl, with stone walls on all sides and on the top, and below was the underground lake that had just swam up.

The most striking thing is that in the middle of the underground lake, there is a raised smooth stone face, like an island in the middle of the lake, on which there is a point of light flickering, emitting a faint blue light, it is this light that illuminates the whole enclosed space, like a light in the dark night.

Qi An was at the edge of the underground lake, a little far away from the point of light, and he couldn't see clearly, and in curiosity, he swam towards the island in the middle of the lake.

It is said that it is an island, but the area is actually very small, but it is a square circle, slightly protruding from the water, like a smooth stone, but when Qi'an swam closer, he found that it was not a stone at all, but a piece of ice floe, which was formed by the freezing of the lake, like an Iceland, and that strange and flickering thing happened to be in the center of Iceland, and when it was close, the point of light became a light cluster.

"It's cold!"

Qi An climbed onto the ice wet, only to feel bursts of biting cold air rushing towards him, and he was really shivering from the cold.

Qi An looked curiously at the light cluster not far away, and saw a strange object the size of a fist, dark blue color, almost transparent, like a cluster of ghost fire, changing and distorting, more than three feet above the ground, suspended in mid-air, and emitting a faint blue light.

"What is this?"

Qi An curiously leaned over, circled around this strange light cluster, and found that its appearance looked like a dancing flame, but on closer inspection, it was composed of a translucent dark blue mist, which was essentially different from the flame, and this thing did not emit the slightest heat, but revealed a trace of cold chill, making the surrounding temperature extremely low, and it was likely that the ice under your feet was formed because of it.

"Is this a treasure?" Qi An muttered softly, and then shook his head in denial, "It's not like it! It's not like it at all! It's a bit like a legendary spirit soul, but the soul is illusory and formless, and the human eye can't see it at all, but I can see this thing clearly!"

Qi An racked his brains and couldn't think of an answer, but he was extremely curious, and always felt that this strange thing had an inexplicable attraction to him, as if it came from the depths of his soul, so he got closer and closer, almost approaching the dark blue light.

After all, Qi An was young, less cautious and steady, and more often acted on emotion, and under the influence of curiosity, he stretched out a finger, slowly, gently, and touched this slowly wriggling blue flame.

"Boom—"

The moment Qi An's fingers came into contact with the dark blue flame, the entire underground lake seemed to vibrate, and the faint transparent flames instantly wrapped around Qi An's fingers, and the blue flame turned into a cold and cold current, swishing down the fingertips into Qi An's body, scurrying along the meridians in the arm, it felt like an ice thorn piercing the flesh, piercing and extending inside the arm, making Qi An extremely painful, and couldn't help but let out a miserable wail.

The icy air currents erupted, leading in all directions along the meridians, like countless piercing ice needles, deeply piercing into Qi An's body. Every meridian, every acupoint, and every pore was filled with extreme cold, making Qi An feel like falling into an ice cellar, feeling that his whole body did not belong to him, as if he was completely frozen in ice, stiff and unable to move, even his heart could not resist this cold, condensed into a ball, and stopped beating.

Qi An's skin quickly became extremely pale, without a trace of blood, and it also exuded a slight chill, like an ice sculpture, and even his eyes couldn't move. If it continues like this, within one or two breaths, Qi An's bodily functions will all stop, and he will be completely frozen by the cold in his body, and he will be frozen to death.

At this critical moment of survival, there was a sudden change, every flesh and blood molecule in Qi An's body seemed to explode, and crackled at the same time, and then released a powerful blazing power, condensed into a series of high-temperature fire lines, passing through the meridians, the meridians that had just been frozen by the cold current, and were burned red and hot, and with the rapid spread of the blazing torrent, the chill on Qi An's body quickly subsided, and he was able to move again.

But this does not mean that the crisis is over, although the cold has been forced back a lot, but in exchange for the collision and raging of the blazing torrent, the body seems to be embedded with countless red-hot irons, and the muscles, bones, skin and flesh seem to be burning, and there is no pain, as if they have been brutally burned.

Qi An's body immediately curled up as soon as he regained his movement, his skin was strangely red and shiny, and the blood vessels bulged one by one, as if they were about to crack at any time, giving people the feeling of being a cooked prawn, and the heat that revealed the skin quickly melted the ice, turning the ice into water, and the water was quickly evaporated into a large amount of mist, making the surroundings hazy.

Qi An felt like a suckling pig, cut open and roasted on the fire, and the scorching pain made him howl miserably, which seemed more cruel than being frozen to death silently.

But who knows, the icy cold current only contracted temporarily, and soon came back ferociously, freezing Qi An's body again in just a breath.

Immediately afterwards, every flesh and blood molecule in the body once again emitted a crackling sound that only Qi An himself could hear, releasing a stream of heat, making the blazing torrent reinvigorate, and launched a fierce struggle with the cold cold current formed by the faint blue flame, using Qi An's body as a battlefield, rolling against each other, competing with each other, one moment you overwhelm me, one moment I will overturn you, and Qi An's skin is like a chameleon, suddenly pale, suddenly red, or half red and half white, red and white.

In this way, Qi An was suffering, and the two extreme opposing forces of heat and cold alternately or exploded in his body at the same time, making him feel painful, as if he had suffered the most cruel and inhumane torture in the world, and he fainted in pain before he lasted for a while, but as soon as he fainted, he woke up under the stimulation of severe pain.

His consciousness seemed to be torn apart by a pair of invisible hands, shattered into thousands of pieces, and then crumpled these fragments of consciousness into one, and then torn again, repeatedly switching between sobriety and sinking.

In the end, Qi An, who kept screaming, was hoarse, his throat was hoarse, and the wrestling between the blazing torrent and the icy cold current gradually stopped, and he didn't know who won the victory in the end, anyway, Qi An had no heart to pay attention to, he was like experiencing a cruel and tragic battle, and was squeezed out of the last bit of strength in his body, and his consciousness collapsed, and he fell into a coma.

Soon after, the thick fog that had been evaporated in the alternation of cold and heat gradually dissipated, and a large crater was found in the center of Iceland, and Zian lay motionless in the pit, not knowing whether he was dead or alive.

I don't know how long it took, Qi An, who was already like a dead man, suddenly moved, got up from the pit with his hands on the ice, knelt on the ground and prostrate, holding his head with both hands, and kept wailing.

"Ah——!h

In fact, at this time, his body had returned to normal, and the cold and cold aircurrents had disappeared, but the tragic pain that penetrated deep into the bone marrow was still deeply imprinted in his mind, and there were still painful memories that had not dissipated, which caused a perceptual illusion, thinking that he was still suffering, and that he was only able to let out a meaningless wail.

But this illusion soon disappeared with the passage of time, and Qi An's consciousness gradually cleared, and he opened his confused eyes, looking left and right, as if retrieving his memory.

Because of the disappearance of the blue flames, the huge underground space fell into darkness, but the strange thing was that Qi An actually felt that the brightness in front of him had not decreased much, and even saw things more clearly than before, not only could he see the mountain rock walls at the edge of the lake from a long distance, but even the underground lake was no longer a dark patch.

"My eyesight has increased?"

Qi An reacted immediately, but his attention was not entangled in this, but instead recalled the situation just now.

"What the hell just happened? What the hell is that blue flame, how did it get into my body?"

Qi Anxin asked himself with palpitations, but there was no answer, everything that happened just now could not be explained at all with his experience, and he didn't even know what kind of existence the translucent dark blue flame was at the bottom. All he remembered was that the moment the ghost thing was touched by his fingers, it burrowed into his body like a living thing, and then let himself live rather than die.

Qi An spread out his hands and looked at it carefully, it seemed that there was nothing unusual, the pain in his body disappeared completely, and everything seemed to be a nightmare.

"It can't be a hallucination!"

Qi An denied it in his heart, changed from kneeling to sitting cross-legged, and quietly operated the [Seven Absolute Sword Techniques] foundation building method to detect the situation of the meridians in the body.

However, this exercise is different from the past, when he inhaled a deep breath of cold air, passed through the lungs and then dispersed into the limbs, it was unprecedentedly smooth, there was no sense of blockage, and then carefully felt, suddenly the pores of the whole body were open, cool and comfortable, and even with his breathing, there was a faint imperceptible air flow in and out of the body, and the whole body was comfortable.

"The know-how is all connected, and the innate perfection?" Qi An's eyes were wide open, and his face was full of incredulity.

These simple eight words represent a realm, this is the limit of a martial artist's dream, martial arts master!