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第一千五百一十七章 地宫崩塌

With the experience from just now, leaving the underground palace was much easier compared to coming in. Lin Xuan hardly encountered any obstacles and left the underground palace, arriving at the ruins atop the mountain.

The outside air seemed significantly more replete with essence qi than inside the underground palace.

"Phew..."

Lin Xuan let out a sigh of relief. This trip had been worthwhile indeed. With his treasures now in hand, he naturally wouldn't linger here long. Just as he was about to leave, a loud rumbling sound suddenly echoed from beside him.

Lin Xuan's expression changed. Turning around, he realized the noise originated from beneath his feet.

Could it be...

His face showed some alarm. The sound was so loud that it almost felt like an earthquake.

If his guess was correct, the underground palace beneath his feet must have collapsed. After reaching this conclusion, Lin Xuan couldn't help but pat his chest, showing a look of lingering fear.

Fortunately, he had retrieved his treasures and didn't hesitate to leave. As a cultivator, being buried alive by an earthquake wouldn't be logical. However, if there were still restraints in the underground palace, it was uncertain whether he could escape safely.

Before this thought fully formed, Lin Xuan noticed cracks appearing on the ground beneath him. Though only about as thick as his thumb, they rapidly spread outwards.

Lin Xuan's expression turned grim.

Not only had the underground palace collapsed, but the ruins atop the mountain were also in danger after he took away the treasures.

Clearly, staying here was not a wise choice; there was no benefit to be gained. How could Lin Xuan afford to linger?

With a flash of green light, he shot out hundreds of feet. His speed seemed even more mysterious than Lin Xuan's, as the gap between their cultivation levels wasn't easily bridged.

Moreover, Wang Tinglou had his own secret techniques that he was unwilling to use against Lin Xuan. First, with ascension imminent, he didn't want any complications. Second, although he had some doubts about the value of those treasures, on balance, they seemed insignificant.

Lin Xuan was unaware of these considerations. With his current speed, it wasn't an exaggeration to say that he could travel a thousand miles in an instant.

In less than half a cup of tea's time, Lin Xuan was already tens of thousands of miles away.

The collapse extended beyond the ruins atop the mountain; even the jade steps had vanished into thin air. This left Lin Xuan both amazed and seriously considering his next move.

Although he had retrieved what he wanted, the time spent on this mission was considerable. Only two days remained before the Netherworld Gate closed. Yet, his sister still showed no sign of life.

Even if he claimed not to be worried, it was a lie. In the mortal world, an Inner Alchemy stage cultivator was almost invincible, with the only threat being other Inner Alchemy cultivators. Even if he couldn't defeat them, they usually posed no danger to his life. His sister had already advanced to the middle stage of Inner Alchemy; logically, she should be fine.

However, in the Netherworld, many Inner Alchemy cultivators had perished during this quest. The ancient beasts and mysterious restraints on this mountain could still pose a threat to their level.

Thus, Lin Xuan couldn't conclude with certainty whether Fairy Ya was safe or not.

The size of Penglai Mountain was too vast for him to locate his sister's whereabouts without knowing where she might be. Even if he knew she might be in danger, there was no way for him to rescue her.

He could only rely on fate.

With no time to spare, Lin Xuan would have to search for the teleportation array himself if he couldn't find any trace of his sister.

The Netherworld Gate opened only once every nine thousand years. Such an opportunity shouldn't be missed. With these thoughts in mind, Lin Xuan sighed and extended all his senses. He had to determine his location first before deciding on his next move.

Fortunately, he had a map of Penglai Mountain, so the risk of getting lost was minimal. Although he wasn't entirely sure where the ancient teleportation array was located, it was likely near the Heavenly Immortal Pavilion, as only that place and an item in the jade tube were marked with such prominence.

With these thoughts swirling in his mind, Lin Xuan suddenly turned his head. Even though his swift flight had stopped, his eyes gleamed with a sharp light, and his expression fluctuated between worry and determination.

About five thousand miles away, there was an intense surge of essence qi.

Normally, his divine sense couldn't cover such a distance, but the battle seemed to be so fierce that it disrupted the surrounding天地元气, allowing him to detect it from afar.

If he hadn't stirred up the天地元气, the opponent would likely be an Inner Alchemy cultivator. With few survivors left on Penglai Mountain, could his sister be in danger?

Lin Xuan rubbed his forehead and muttered under his breath.

While this was unlikely, there were always coincidences. Who knew if it couldn't happen?

After a moment's hesitation, Lin Xuan changed direction to fly towards the source of the essence qi surge.

Even though he had secretly entered the mortal world, this news came from his sister. If there was any chance, he would bring her along.

As for encountering powerful enemies, Lin Xuan didn't worry much. The ancient demons and ghostly entities were all gone, leaving only a few Inner Alchemy cultivators who posed little threat to him. Even facing an Inner Alchemy后期 cultivator wouldn't be hopeless, especially with Mo'er by his side.

After practicing the Asura Technique, his young apprentice's abilities weren't inferior in terms of divine power and techniques; she might even match Lin Xuan.

With these realizations, Lin Xuan was confident that as long as he didn't step into an ancient forbidden array, his life would be safe.

Moreover, if he had already passed a deity's restraints, it was unlikely there were any more formidable traps in this mountain.

Although the Netherworld Gate posed dangers, its threat to him now was minimal. Thus, Lin Xuan abandoned caution and flew boldly towards the source of the essence qi surge without hiding his trail.

Time was pressing; he didn't want to waste any time. If it was his sister, she would naturally receive his aid. Otherwise, Lin Xuan wouldn't bother with other matters.

The distance of thousands of miles wasn't instantaneous, but the time taken was negligible.

In just a few breaths, Lin Xuan was only about seven hundred miles away from the source of the essence qi surge.

"Eh?"

Lin Xuan's divine sense swept ahead again. His face lit up with surprise as he realized that while his and the other party's figures were enveloped by天地元气, the residual effects of their battle prevented him from getting close enough to discern their identities.

However, identifying the nature of the essence qi was straightforward. One side clearly used light and agile water essence qi.

In the mortal world, there weren't many Inner Alchemy cultivators, and those with a water attribute were even rarer. The妖族 might or might not have come to Penglai Mountain...

With these thoughts in mind, Lin Xuan's eyes gleamed with determination. Unless something unexpected happened, the person ahead was almost certainly his sister.

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