Passing through the stone door behind the throne, Lu Yu was met with a yet-to-be-formed "chaos world," where the spiritual qi was so dense it had liquefied, and at the center of this "world," a light sphere suspended.

Chu Tianhe observed the scene and exclaimed, "A geoduct?"

"A geoduct?" Lu Yu was puzzled, what is a geoduct?

He had heard of a spirit vein and knew what it was, but the term geoduct was foreign to him, beyond his concept.

Light flashed in Chu Tianhe's eyes, seemingly understanding why the Zhou Dynasty had yet to act against Black Sand City.

Seeing the confusion in Lu Yu's eyes, Chu Tianhe explained, "A geoduct is a type of spirit vein, but a geoduct does not produce spirit stones, it only determines the concentration level of spiritual qi in an area."

"The spiritual qi concentration near Black Sand City is generally 1-2 times higher than other places because there is a geoduct beneath Black Sand City, and we are now at its center."

He looked at the light sphere and said, "That should be the core of the geoduct, capable of affecting the entire geoduct's flow. If those people are targeting the geoduct beneath Black Sand City, why aren't they here?"

Chu Tianhe swept his gaze around, seeing no presence of the figures who attacked the City Lord's mansion.

The significance of a geoduct can be great or not, depending on perspective. For ordinary Martial Cultivators, a geoduct is merely a place with rich spiritual qi, which can accelerate cultivation.

But prolonged exposure to a geoduct can lead to assimilation by the spiritual qi, eventually merging with the geoduct, losing one's identity.

For some major forces, geoducts are highly significant, potentially used to create sanctuaries for accelerated cultivation. However, such powerful entities are scarce even within the Zhou Dynasty.

Moreover, the Zhou Dynasty has regulations against arbitrarily extracting geoducts, as extracting them would affect the dragon veins' direction across the dynasty, impacting its fortune.

As a result, the Zhou Dynasty always strictly guards the geoducts.

The geoduct beneath Black Sand City has not yet connected with the main dragon veins of the Zhou Dynasty, making it a developable geoduct.

If the existence of this geoduct becomes known to those powerful entities, they would likely stop at nothing to extract the geoduct beneath Black Sand City.

At that time, areas within a thousand, or even ten thousand miles, around Black Sand City would become barren of spiritual qi, losing the ability to produce heavenly materials and treasures, significantly slowing down Martial Cultivators' training speed, and making it difficult for monsters to awaken intelligence.

This could even lead to a massive migration of spirit qi-dependent beasts and spirits, causing a chain reaction.

Chu Tiange's body was enveloped by a layer of white light, which isolated the spiritual qi of the geoduct, protecting him from being assimilated and losing himself.

He looked at Lu Yu, who had no protective measures, and said, "It's dangerous to stay in a geoduct, for safety, you should leave here first..."

Buzz~ A ripple spread within the geoduct. Lu Yu and Chu Tianhe both looked towards the light sphere at the geoduct center, as the disturbance originated from it.

Crack~ Boom!

The stone door behind the two of them shattered, the entire world transformed into a chaos state made of only spiritual qi, preventing them from returning to the previous desert world through the stone door.

Lu Yu glanced back at the now-vanished stone door and shrugged helplessly at Chu Tianhe, saying, "We can't get out."

Without waiting for Chu Tianhe to reply, Lu Yu propelled himself through the liquefied spiritual qi towards the light sphere.

In this entire geoduct, the light sphere was the only distinct thing; it was likely the source of everything.

Drawing closer, Lu Yu discovered that inside the light sphere was a man wearing large gold earrings, someone he had seen once in the desert lizard carriage yesterday.

As Lu Yu approached, the man opened his eyes, his golden pupils looked indifferently at Lu Yu.

Wanyan Shahe glanced at Lu Yu, then his gaze swept past to Chu Tianhe behind him, extending his right hand as the spiritual qi within the geoduct rapidly changed in his palm.

Lu Yu felt the surrounding spiritual qi rapidly flowing toward the golden earring man's palm, the liquefied spiritual qi pushing Lu Yu continually closer to the light sphere.

Swoosh~ The world in Lu Yu's eyes transformed, the figure of the golden earring man grew larger in his vision, his hand seemingly transforming into a small world.

"Spatial Divine Techniques!" Chu Tianhe's expression turned grave.

Poof~ The two vanished into the golden earring man's palm, entering a bubble world, which floated beside Wanyan Shahe, revolving around him incessantly.

What Lu Yu didn't see was that two bubble worlds orbited around Wanyan Shahe, one being the world they were just sucked into, the other being the desert world they had just passed through.

Bang~ Lu Yu fell, hitting the sand dune.

Before he had a chance to observe his surroundings, another figure dropped from the sky. Lu Yu instinctively took a step to the side, allowing Chu Tianhe to land sitting on the sand dune.

"Are we back in the desert world?" Lu Yu asked in confusion, glancing around.

He began walking up the sand dune, this world seemed identical to the former desert world, surrounded by only yellow sand, nothing else.

Upon reaching the dune's peak, Lu Yu saw a distant oasis, with a grand Desert Divine Hall erected atop it.

"Is this a world he created?" Lu Yu speculated, recalling the moment he was drawn in.

"He can't possibly create a world." Chu Tianhe approached, stating with certainty.

Lu Yu turned to look at him, and he explained, "I possess a unique Spiritual Treasure that can determine my spatial position. The Spiritual Treasure shows we are still at the original location, having not moved."

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