Seeing Li Xi tossing and turning in excitement, unable to sleep, it was clear he didn't exhaust much physical strength.

Lu Ren thought for a moment and replied, "Actually, I don't quite believe it."

"Then why did you still come over?"

Li Xi was intensely curious, not believing yet he came along.

Lu Ren calmly said, "When you find a path that can take you further, although it might lead to nothing, it's a necessary part of moving forward."

He looked at Li Xi, "Everything progresses in a spiraling ascent, you should understand this."

Li Xi didn't quite get it, but seeing Lu Ren obviously had no interest in continuing the conversation, he dared not disturb him more, and so he burrowed into his sleeping bag to rest.

It wasn't until midday the next day that the wind and snow began to cease, and under the bright sunshine, they watched as the transport plane flew over their heads, finally waiting for the airdropped supplies.

After Chen Feng and the others brought over the airdropped supplies and, under remote guidance, completed the installation, correctly connected the satellite, and linked up with the remote control command center, they breathed a sigh of relief.

"I was really afraid of accidentally breaking the equipment."

This took them nearly an entire afternoon.

The underground sonar detection equipment was too precise, with many tiny parts needing careful installation, and in the end, the deft Li Xi did the final touches.

Primarily because the fingers of the martial arts family practicing fist techniques are somewhat thick...

"It's on!"

After a tiring afternoon, Chen Feng's expression brightened as he saw the booting of the detection equipment on the screen in front of him.

About half an hour later, Li Xi carefully looked at the map image generated by the underground sonar.

"This underground space is really huge, with these twists and turns, it covers an area of fifty square kilometers."

Li Xi was a bit excited, pointing and saying, "This is just like the hand-drawn map my grandfather made back then. They determined the data point by point, and it took them a month to draw it."

Speaking of this, Li Xi's face was full of pride, then he began to feel somewhat sad, a bit indignant.

"Those damn Wokou."

Saying this, she composed herself, took a folded piece of paper from her arms, unfolded it, and compared it with the patterns on the computer, finally nodding repeatedly, pointing to a place on the map almost a kilometer away from them.

"Here, this is the weakest point. If we go down from here, the slope is gentle, saving a lot of energy to reach the bottom."

Lu Ren glanced at the map, then carefully recalled it once more, ensuring he hadn't forgotten any positions, and nodded slightly, "Alright, let's set off."

The group hoisted the equipment, taking about ten minutes to reach the predetermined location, where Wang Yuan and Zhang Chishan, both skilled in demolitions, began setting up the explosives.

Seeing this, Lu Ren couldn't help but speak, "What's this for?"

Wang Yuan said, "Lord Lu, we have to break the door open, right?"

Lu Ren pondered a bit, finding it slow, and feeling that if the explosion went wrong, it could easily cause an avalanche.

"Let me do it."

"Eh?"

Wang Yuan and Zhang Chishan paused, watching as Lu Ren lightly stamped his foot.

Poof.

With a light sound, the group saw the stone ground beneath Lu Ren's foot crack like a spiderweb.

Then Lu Ren slowly stepped aside.

Seeing this, everyone hastily moved back, ensuring they stood behind Lu Ren's range before cautiously watching the ground, ensuring it wouldn't cave in.

After waiting about thirty seconds, Li Xi couldn't help but say, "Is this really okay..."

Before finishing the sentence, the ground Lu Ren had stepped on suddenly cracked wide open.

Crash!!

Crashing sound!!

The rustling and tumbling sound intensively erupted at that moment.

Then, under everyone's astonished gaze, the underground shattered into a large pit, some debris rolled down the rugged slope, echoing a long reverberation.

Zhang Chishan looked at the rocky layer below, at least five meters thick, shivering slightly.

"Is this possible?"

Gazing at the exposed, pitch-black cavity below, Lu Ren's expression abruptly became focused; he sensed an abnormality in the magnetic field inside, even carrying a hint of dangerous aura that even he felt.

Even he felt it was somewhat dangerous...

Lu Ren pondered briefly, then said, "I'll handle it from here. You all can wait for me here."

Hearing this, Li Xi immediately raised his hand, "Lord Lu, I request to go!"

Lu Ren resolutely refused, then said, "I'll put a positioning device and camera on me, just focus on feeding me the probe information."

Seeing Lu Ren's firm decision, everyone could only relent.

Watching Lu Ren carrying a bunch of signal relays and an oxygen device into this moderately sloped underground space.

Everyone bade farewell, making Lu Ren feel a bit strange inside.

It gave a kind of cold, chilling wind by Easy Water's edge wrong impression.

Once Lu Ren's figure completely vanished into the dark underground space, Wang Yuan next to him exhaled deeply.

Zhang Chishan noticed and couldn't help teasing, "You seem really nervous."

Wang Yuan didn't hide it, smiling bitterly, "I'm really afraid of this kind of environment."

"Understand, it's fear of deep darkness, right."

It's not just Wang Yuan; generally, anyone would feel an inexplicable fear towards such pitch-black cave entrances.

As for Lu Ren, as long as he gets a faint light, he can clearly perceive this dark underground cave world.

Thus, every three hundred meters while dropping a signal connector, he takes out a white fluorescent stick and casually throws it into various places in the cave.

This white fluorescent stick can self-illuminate for at least two weeks before completely fading away.

"Railway Bureau, can you hear the sound?"

Chen Feng's voice came through the earpiece.

Lu Ren: "I can hear."

Chen Feng sighed with relief, laughed, and said, "Sometimes I really don't like these high-tech gadgets, like the signal connector, which is supposed to work uninterrupted for a month, but you never know if one might break, and the previous setup got interrupted."

He paused, and seeing that Lu Ren didn't reply, he quickly brought up the main issue.

"Based on Li Xi's determination of the location, if that True Dragon really exists, it's situated at the deepest part of this cave space. You approximately follow this passage forward for about five kilometers, then you'll see several forks; at that time, choose the third, which leads downward."

Lu Ren recalled the map in his mind, confirming there were no errors.

"I understand."

The entire cave space delves nearly one thousand meters underground.

On the Huaxia Land, caves like this probably existed for tens of millions of years, so such underground spaces are quite common.

It's just unusual that it appears in the Changbai Mountain's terrain.

He proceeded forward peacefully without incident, chose the third fork, and as he went further down, the surrounding temperature began to rise rapidly.

After getting nearly five hundred meters, the air became extremely thin, and Lu Ren had to put on an oxygen mask, slow down his breathing, and adjust his body's functional state to extend oxygen consumption.

As for the surrounding temperature, even when it rose to nearly two hundred degrees, Lu Ren was able to lock his body, preventing water from escaping.

His foundation is the Fifth Difficult-to-Conquer Land Bodhisattva Dharma Aspect, so there's little worry.

The Fifth Land was originally meant to make one's comprehensive qualities more balanced and also possesses strong resistance to extreme external environments.

Upon reaching the bottom, Lu Ren suddenly paused, with the hundreds of signal repeaters he carried just finished throwing.

He squinted, looking at the circular entrance ahead with obvious human traces, inside faintly revealing some elusive things.

Under the Heart Eye activation, Lu Ren could see a magnetic field condensing almost tangibly.

"Can you see?"

Li Xi's voice was somewhat tense, "See, can see, but the temperature here is 187 degrees, how could there be traces of biological activity."

Lu Ren walked to the entrance.

"Ding, you've discovered an ancient relic of the real world, inside it seems to hold some things that influence the world's direction."

"Ding, you seem to need to act subtly and speak kindly."

Seeing the system prompt in his mind, Lu Ren was quite surprised, especially the second prompt, the system surprisingly provided him with an action cue.

This made Lu Ren slightly tense.

He lightly inhaled some oxygen, ensured no abnormalities, and stepped into the cave.

Sizzle!!

On the ground, Chen Feng watched the screen signal suddenly interrupt, the screen continuously filled with static; a few people glanced at each other and hurriedly used the detection equipment on the signal repeaters for data reconnaissance.

After a while, Chen Feng said somewhat gravely, "That place seems to be an Exotic Realm."

"What the hell, is there one underground too?!"

Zhang Chishan couldn't help but curse.

Chen Feng kept adjusting, through the data coming from afar, said, "This Exotic Realm channel seems to have existed for many years, very stable, not like it was recently formed."

Li Xi listened, spinning around in place.

"What to do, what to do, Lord Lu went in."

After all, in today's society's promotion, places like this Exotic Realm are ninety-nine percent extremely dangerous zones; if one accidentally falls in without enough strength, it's essentially a one-way trip.

After a while, Chen Feng waved his hand, "Don't worry, you don't know this lord's story, ever since his Fist Technique reached Minor Achievement, he began continuously traversing these Exotic Realms."

"Really, is that so?"

Li Xi's expression slightly relaxed.

Zhang Chishan nodded, "His experiences gave us a lot of detailed information."

...

...

"Ding, you've entered the Dragon Realm Secret Realm, inside there seems to hold some world's secrets."

The system prompt from his mind made Lu Ren pause sharply, he turned to look at the stable channel behind, ensured he could still come back, then slightly let out a sigh of relief.

No wonder there was no prompt about being squeezed out by space information.

Removing the sizzling earpiece, Lu Ren looked at this world.

The beauty of the mountains and waters cannot be expressed.

This place, where nature's elegance gathers, houses sun and moon essence.

This Dragon Realm is extremely vast, with green mountains and plains everywhere, a great river winding flows, enduring endlessly.

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