With a thunderous roar, the mountain ahead began to collapse rapidly moments later.

"Retreat quickly!"

Zhang Di and the others, seeing the mountain ahead collapsing, had no desire to linger in this place.

Moreover, with the violent shaking of the ground, their first thought was that the island might be sinking.

Just as they thought, ten breaths later, the ground was riddled with immense fissures.

"This island is collapsing! Everyone, retreat quickly!"

Originally, the group believed they could find the treasure emitting the light pillar; they never expected the island to suddenly collapse.

So, they hurried toward the shore.

Another thunderous roar erupted from the ground, as surging geysers burst forth, even knocking some people into the air.

The crowd gasped, realizing the island was truly sinking.

Some were incredibly fast; having reached the shore, they promptly put the boats into the sea.

Soon, everyone was on board.

With a loud bang, the onlookers saw the island ahead sinking rapidly.

And the light pillar ahead disappeared as the island sank.

"Everyone stay calm!"

Elders from the Holy Land and the academy swiftly steered their respective boats into the sky, unaffected by the vortex created as the island sank.

Seeing the island's collapse, Duan Gujin's brows furrowed slightly; his mind racing, the scene before him felt oddly familiar.

After a moment, he had an epiphany.

"Now I remember, no wonder this island felt familiar to me! I get it now, that light pillar was actually a guiding light pillar, used to indicate direction! This island was used by a high-level person to seal the General Star Sea! General Star Sea, I'm starting to understand, I know what this is about now!"

Duan Gujin immediately suspected General Star Sea might belong to the sea demon type of the Netherworld Dark Clan; to seal a sea demon type of the Netherworld Dark Clan, they had to be sealed in the sea.

Among the Netherworld Dark Clan, some originally are sea demons.

And sealing this type of sea demon poses much more difficulty than sealing those who dwell on land.

To seal the sea demon type of Netherworld Dark Clan, pinpointing their location is the first step.

In other continents, Duan Gujin had heard of many positioning methods, but not all of them were ones he was fortunate enough to see in person.

Thus, he had not realized that the light pillar was not from a treasure but was used by the Sealer to locate sea demon types of the Netherworld Dark Clan.

Once the Netherworld Dark Clan was located, even if it dived deep into the sea, the Sealer would be able to find them in the ocean.

"Now I understand! So that's what it is!"

Duan Gujin took a deep breath; he hadn't associated the light pillar with a guiding light pillar before since there are many reasons for a light pillar to appear, and he couldn't assume that a light pillar was a guiding one.

"It seems the problem with this island has been resolved!"

Duan Gujin went over everything that had occurred in his mind and felt that the General Star Sea sealed on the island must have indeed perished.

After a while, Zhang Di and the other elders saw that the whirlpool in the sea below had disappeared, and they lowered their boats.

"What should we do next? Duan Gujin, do you have any good suggestions?"

Zhang Di found Duan Gujin and asked him for a solution.

"We can go back now. That island has already sunk into the ocean. Even if you want to go down and look for that light pillar, it won't be of much use anymore. I had been puzzled about what that light pillar was, but now I understand it!"

Duan Gujin said indifferently.

"Then tell us, what is that light pillar?"

Zhang Di appeared extremely excited; he had been speculating what that light pillar was ever since he saw it appear in front of them these past few days.

So, he really wanted to know exactly what that light pillar was.

Duan Gujin directly told Zhang Di the truth.

After hearing what Duan Gujin said, Zhang Di's mind raced, pondering whether Duan Gujin was deceiving him.

He considered all possibilities and then felt that it was highly likely that Duan Gujin was not deceiving him.

After all, only this explanation could most reasonably account for why General Xinghai was sealed on that island.

"So that's how it is!"

Zhang Di suddenly came to a realization.

Duan Gujin guessed from Zhang Di's facial expression that he might have been doubting his words earlier, and he directly said: "If Elder Zhang doesn't believe me, you can make a mark here or leave some people behind to enter the seabed in search of that light pillar. I'm telling you, that light pillar is a guiding pillar, a very special Array!"

Hearing Duan Gujin's words, Zhang Di hurriedly denied, saying: "No, dear young friend, I believe your words! Then tell us, what should we do next? Leave this place?"

"Yes! I sense that the giant Xuan Turtle that guards this Sealing Island has appeared. Elder Zhang, order your ship to fly up immediately!"

Duan Gujin suddenly sensed a very terrifying presence coming from beneath the sea and promptly told Zhang Di to command all ships to soar into the sky.

Upon hearing Duan Gujin's words, Zhang Di immediately ordered his ships to rapidly fly into the sky.

He had encountered the giant Xuan Turtle last time and suffered a great loss.

In the last operation, his large ship had been sunk by the giant Xuan Turtle.

He wanted to retaliate against the giant Xuan Turtle, but after it sunk their ship, it dove into the sea and escaped, which frustrated him greatly.

At that time, he considered the safety of other disciples and did not pursue the giant Xuan Turtle.

Now that Duan Gujin had spoken, he understood.

"I couldn't understand why the giant Xuan Turtle only wanted to destroy our ship and didn't attack us. Now I get it, the Xuan Turtle was there to protect the Sealing!"

"Yes!"

Duan Gujin nodded hastily.

With a booming sound, moments later, everyone saw a black figure emerge from beneath the sea, leaping towards the ship they were on like a fish out of water.

Fortunately, Zhang Di had already ordered everyone to pilot their large ship to ascend into the sky.

This time, the giant Xuan Turtle was unable to destroy their ship.

With a loud bang, everyone saw the giant Xuan Turtle fall into the ocean and then dive into the seabed, completely disappearing from sight.

"What a cunning Xuan Turtle!"

Duan Gujin immediately thought that the giant Xuan Turtle must have lived for thousands, perhaps even several thousand years.

"It seems that this giant Xuan Turtle is very likely left here by the previous Sealer to guard the Sealing Island!"

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