A cold wind whistled through the air, carrying the rain of water that had fallen from the distant top and lapping on the reef, splashing down the sloping rock face like a waterfall into a rushing subterranean river.

Prostrate on the ground, the white-haired teenager's eyelashes moved slightly, and he opened his eyes. The streamer as clear as water lit up, followed by a silver starlight, and the two were entangled into a silver-cyan fluorescence, which circulated in the pupils.

Ian quickly awoke from his momentary distraction, and he stood up, silently looking around.

The air is filled with water vapor, and a white mist completely envelops the surroundings, making you feel like you're in the clouds.

But the boy knew very well that he was underground.

Extremely deep, even under the abyss.

Buzzing......

A bright light blue arc of electricity lit up overhead, illuminating everything around him, and Ian looked up, and the incomparably rich psionic field was like a cliff of sighs, so that the slightest friction of clouds and mist could cause electrical discharge, which in turn caused lightning in the clouds.

The light from the lightning allowed him to confirm that he was in a vast group of underwater caverns.

You can vaguely see a wet cave stone wall...... And in the distance, at the fork, you can faintly see several forked holes, which are unfathomable and do not know where they lead.

"It seems to be an outlier."

Carefully scrutinizing and using the silver chip to collect information about the surroundings, Ian was not worried, but smiled: "It's not a big problem, I'm already in the ruins." ”

He remembered very well that not long ago, the South China Sea had changed, the sea and the earth had cracked into a rift valley, and a huge hollow entrance appeared above the earth's crust, swallowing half of the ocean, and its huge pressure and air flow fluctuations involved everything around it.

If he hadn't been injured, Master Gosai might have been able to withstand this kind of air flow movement, but if we don't talk about it, this is also a matter of course, and the injured old man has no choice but to follow the air flow straight into the hollow of the earth's crust.

After that, it's simple.

In the midst of the raging hurricane, Master Gosai couldn't hold it anymore and passed out, but at this time, it was Isengard who stepped up and tried to take the baton and continue to maintain the wind that dragged everyone.

“…… It's still a little bit off. ”

Ian touched his head, and nodded thoughtfully, "It's slowing down, but there's no way to fend off the turbulence - I'm separated from Shark, and Gossai and Isengard." ”

"I was swept up by the turbulent currents and surged along with the tide for a long time...... In the process, I was also too tired from the previous battle with the crocodile, and lost my mind for a while, but after reflexing, I woke up here. ”

"It's at least a few kilometers deep, isn't it?" Remembering this, the boy raised his head, looked at the rock formations of the cave above his head, and estimated where he was now and the time in the past: "As for how long I have lost my mind...... It lasted four hours and twenty-three minutes. ”

To be honest, as the tide continued to wash and impact in the cave, it could not make a cultivator of a sand armor apprentice lose his mind, and Ian felt as if he had been swept head-on by a very strong natural psionic field change before he became confused and 'slept' over.

In other words, he was actually stunned by the natural changes caused by the labyrinth's mutations.

If it weren't for the silver chip time, he probably wouldn't know how long it had been since he had been in this place.

"Well, the brain crystals are still there."

The young man touched his side, and the brain marrow crystals that he had protected were still there, and the earthy yellow light penetrated through the white robe, like an old-fashioned oil lamp.

In addition, the Chongyuan Iron Sword and the high-pressure water gun were also packed up properly, one was hung around the waist and locked very firmly with the skin of the demonic beast, and the other was in the medicine bag, together with some alchemy potions.

Among the alchemy elixirs, some of the glass has been shattered, and the liquid medicine has been wiped out in the previous wash, but there are still some more important ones, which are stored with steel crystals, so they are quite well preserved.

"Essentia replenishment, the power of giants, short-term rage, perception increase...... There was also a small vial of the regeneration potion given by Master Gosai. The Silent Ring is also intact. ”

Ian counted, feeling more at ease: "Yes, the key is here." ”

Through the fluorescence emitted by the brain marrow crystals, the boy could see the reef beneath his feet, and beside him was a rushing underground river, and the sound of rushing water filled his ears.

Ian didn't stay here for long, he looked around at the intricate caverns around him, and then ordered the silver chip: "Record the map." ”

He is confident in his memory, but there is no need to pay for believing with his life - a good memory is not as good as a bad pen, not to mention that a map recorded by a chip is ten thousand times better than a bad pen.

Without the slightest hesitation, fear or even worry, the white-haired boy smiled, and could even be said to be happily walking in this cave that was completely unknown and did not know what the risks were.

He explores forward, looking forward to the scenery he has never seen before, yearning for a different experience from the past, longing for something extraordinary.

So it was full of joy.

The white mist filled the cave, and the river under the ground flowed in a rocky passage more than twenty meters wide, and the underground, which should have been pitch black and gloomy and could not see the five fingers, was faintly fluorescent because of the ultra-high-intensity psionic energy field, and with just a slight wave of the hand, it could bring up a sparkling arc.

The underground river shimmered with the current, and as the boy continued to move forward, the originally wide cave passage began to gradually become narrow, with many forks...... Soon, as the underground river flowed more rapidly, layers of calcified sediment formed a staircase-like structure, and the glowing mineral ladder was particularly striking due to the arc in the air.

The cave leads to a deeper place.

Ian walked unchanged, and he could feel the wind blowing—it was in the depths of the earth, but the moist tidal winds that perhaps originated above the surface of the sea were still pouring into the ground.

This either means that the air pressure in the deeper underground space is extremely low and almost vacuum, or it means that there are still airflow exchange equipment in operation in the entire group of pre-era civilization relics in the underground.

He believed in the latter.

The cave that gradually narrowed became dark and dim, only the crystals on his waist and the eyes of the young man shone with a warm light, and he walked in the cave that seemed to lead to the underworld, but he was not afraid at all.

Even, there is mental analysis.

- From the perspective of the entire cave structure, it should be a classic water erosion structure, but on some caves, it resembles a structure cooled by volcanic lava.

Considering the cause of the storm, it is possible that the malfunction of the ruins' cooling system did cause the melting of the surrounding geological structures.

Analysis is inconclusive in the absence of sufficient evidence, but at this point, Ian happily begins to imagine.

He looked around at the water and the rock walls, imagining the ancient past of this deep cavern, which was at least a thousand meters underground.

He imagined that thousands of years ago, there was a vast underground river flowing here, and the endless sea water flowed down according to the topography, and then eroded the fragile parts of the rock formation, gradually forming the prototype of the karst cave.

The pre-era civilizations took a fancy to this natural huge underground cave structure and chose to build their huge underground base here...... A majestic structure that begins in the depths of the earth, but eventually leads to the heavens!

A tower...... and an acceleration track to the top of the firmament.

Lewen