From the Abyss Invasion to the Blasting Star

After making adequate preparations, Lu Heng led the conscription team to the Wugulan Cave.

In order to facilitate the operation, a ship was borrowed from the Siren tribe before departure.

The high priest Sona borrowed the largest ship in the tribe and sent a team of Siren warriors to accompany them.

The ship sailed for more than 700 kilometers and gradually approached the Wugulan Cave.

Lu Heng and Su Muyu first flew into the sky, flew around the Wugulan Cave, and looked down at the Wugulan Cave from the sky.

As Celian described, looking down from the sky, the Wugulan Cave is a huge blue round hole.

The outer circle of the round hole is blue, and the color becomes darker as it goes to the center, and it directly turns into ink-like black in the center.

The diameter of the Wugulan Cave is more than ten kilometers, which is very large.

Moreover, there are many underwater caves inside, crisscrossing, and the internal structure is very complicated.

After flying a circle, Lu Heng asked Su Muyu to release the Chongming Bird, enter the invisible state and fly into the Wugulan Cave for reconnaissance.

Afterwards, the two returned to the ship and asked the captain of the Siren tribe to drive the ship to patrol the periphery of the Wugulan Cave.

When they came, Lu Heng promised Sona that he would not let the ship and the Siren tribe crew on the ship be in danger.

Therefore, the ship will only patrol the sea area 30 kilometers away from the Wugulan Cave.

Even if it is 30 kilometers away from the Wugulan Cave, there are many cases of encountering black-scaled demons.

Jiang Shaoran will arrange actions according to the situation after discovering the black-scaled demon through the ocean perception ability.

There are two purposes for coming to the Wugulan Cave this time. The first is to scout the Wugulan Cave, and the second is to expand the benefits of the abyss battlefield.

Since the benefits of the abyss battlefield are to be expanded, it is necessary to hunt demons as much as possible to help all team members improve their source energy levels.

Therefore, as long as the black-scaled demon is discovered and the enemy situation is scouted, Liu Haiyang will lead the team to dive into the seabed to hunt.

Since Lu Heng can only exert 30% of his combat power in the sea, he will not waste this effort. As long as Liu Haiyang and his team are not in danger, they will stay on the ship.

In addition to expanding the benefits, Lu Heng actually has another purpose for coming to explore the Black Bone Blue Cave this time.

Because there is an important information in the memory, but it has not been found yet.

In the previous life, during the first recruitment of the Siren World, a fourth-turn source essence appeared.

The first recruitment of the Siren Clan appeared one and a half years after the Abyss descended on Blue Star. The fourth-turn source essence at this time point is very rare.

After all, the recruitment rules of the world will evaluate the combat power of the superpowers and then transmit them to the world with the corresponding danger level.

The resource level and danger level of the Abyss battlefield are proportional. The higher the danger level, the more high-level resources will appear.

The fourth-turn source essence is only possible in a world with a danger level of 7, and it is only possible to appear, not necessarily.

Lu Heng is interested in this fourth-turn source essence, but he doesn't know much information. He only knows that it is a fourth-turn source essence from this world, but he doesn't know where it came from.

After all, this kind of information about the Abyss World is of high value and cannot be made public casually.

Moreover, this fourth-turn source essence is a bit strange. It is not the fourth-turn source essence of the ocean system.

When Lu Heng went to the Dark Iron Dwarf Kingdom before, he also tried to find relevant clues, but he didn't find any.

There was no sign of the fourth-level source substance in the territory of the Siren Clan.

Lu Heng asked Sona for a map, and also wanted to see if there were other places in the world where the fourth-level source substance might exist.

After looking around, the most likely one was the Black Bone Blue Cave where the Black Scale Demon lived.

However, the internal structure of this Black Bone Blue Cave was complicated, and it was too dangerous to rush in and look for it.

It just so happened that the team needed to expand the battlefield benefits, so they could explore the Black Bone Blue Cave by the way to see if there was any possibility of finding clues to the fourth-level source substance.

Liu Haiyang led the team to hunt the Black Scale Demon on the seabed, clearing all the way and gaining a lot.

Su Muyu sat by the side of the ship, closed his eyes and controlled the Chongming Bird to fly into the Black Bone Blue Cave to explore.

After the Chongming Bird entered the water, its speed was much reduced, and it was not as free as when flying in the sky.

She closed her eyes and said as she explored: "There are many large and small underwater caves in the blue hole, and some of them have black-scaled demons..."

She did not let the double-headed bird approach the black-scaled demons in the caves. After all, her mission was to explore the black-bone blue hole and avoid being discovered by the demons as much as possible.

Lu Heng listened to her report and prompted: "Look at the center of the blue hole."

"Okay."

Su Muyu nodded and agreed, controlling the double-headed bird to slowly approach the center of the blue hole.

When it was two kilometers away from the center, she took a deep breath and said: "I saw the ocean cemetery that Celian said. There are many skeletons of marine creatures floating within about two kilometers of the center of the black-bone blue hole.

"These skeletons rotate counterclockwise around the center point, and the rotation speed is very slow. You can't tell them apart without careful observation.

"The bones of these marine creatures are all black. Now I understand why the color of the center of the black-bone blue hole is so dark. It is the base color formed by the skeletons of these marine creatures."

If you look down from the sky, the skeletons of these marine creatures float in the sea water, layer by layer, forming a black base color.

When Lu Heng heard this, his brows slightly furrowed.

Because this situation was too weird.

In the ocean cemetery with a diameter of two kilometers, countless skeletons of creatures were rotating around the center of the black bone blue hole, just like a planet rotating around a planet.

This situation is obviously abnormal. There must be something in the Wugulan Cave, and it must be something terrible.

At this time, Su Muyu suddenly said: "No, the skeletons are not all marine creatures, there are also land creatures. I saw the skeletons of land creatures, with limbs and claws."

Although there are some marine creatures with limbs and claws, it is still easy to distinguish the skeletons of marine creatures from those of land creatures.

Combining this information, it is obvious that there is something special under the Wugulan Cave.

But this thing has appeared in Wugulan for at least decades and has not spread outward. Why is this?

Is this thing alive? Or dead?

If this thing is alive and has existed for decades, has it never come out to move once?

If it has come out, the Sirens should have noticed it.

If it has not come out, is it a dead thing?

Lu Heng tried hard to recall and wanted to find relevant information from his memory, but he did not find it.

Since the emergence of the Sirens World, the number of marine superpowers among humans will gradually increase, and there will be more and more cases of being recruited to the Sirens World in the future.

Therefore, humans will not be unfamiliar with the world of sea monsters in the future, and more and more recruiters will bring back information and intelligence about the sea monsters.

However, there is no secret about the black bone blue hole in these intelligence.

Why not?

With the strange phenomenon that the black bone blue hole is showing now, there must be something underneath.

If there is a terrifying demon king similar to the fire demon Gross inside, it will inevitably cause a crisis.

Every time the abyss battlefield is recruited, it is because of the crisis, and the cause of the crisis is the abyss pollution source.

In other words, if the "thing" under the black bone blue hole is the abyss pollution source, then there will definitely be a recruitment task in the future to deal with this abyss pollution source.

If there is a recruitment, there will definitely be information.

Since there is no information about this "thing" in the black bone blue hole in the memory, it is highly likely that there is no recruitment.

Could it be that the things inside have nothing to do with the abyss?

However, it can be surrounded by a large number of biological skeletons, and there are black scale demons living outside. This environment is really unrelated to the abyss?

These information together make this matter even more weird.

Lu Heng thought and reminded: "Be careful, slowly approach the center of the blue hole and see what's on the seabed."

A correct version in 16-9-1 book-1 forum!

"Okay." Su Muyu nodded and agreed, and continued to control the Chongming bird, passing through the skeleton area, slowly approaching the center of the black bone blue hole.

While exploring, she reported what she saw: "It's strange, after entering the skeleton area, I didn't see the black scale demon anymore."

The black bone blue hole is indeed the habitat of the black scale demon. Logically, this should be the territory of the black scale demon.

"Is there not a single black scale demon?" Lu Heng asked again.

"Yes, there is not one. I have already checked carefully. The closer to the skeleton area, the fewer black-scaled demons appear. After entering the skeleton area, there is not a single black-scaled demon."

Su Muyu was thinking while answering, and analyzed: "I think the black-scaled demons will not approach the skeleton area at all, because the skeletons of creatures here are floating quietly in the water.

"If a black-scaled demon comes in and touches these skeletons, the floating direction of the skeletons will definitely change, and the arrangement of the skeletons will be very messy.

"But the skeletons of creatures here are just floating quietly, and even the entire skeleton area is very quiet.

"There is another strange thing. In theory, the density of bones is greater than that of water, so they should sink to the bottom of the sea. The floating situation is very special. "

Normally, bones have a high density and should sink to the bottom of the sea.

Even if there are bones with a lower density than seawater, they should float to the surface of the sea instead of floating in the seawater.

This situation of neither sinking nor floating should be caused by the density of bones being similar to that of seawater.

Occasionally, a skeleton of a creature may have this situation, which can be said to be a special case, but all the skeletons of creatures float up, so there must be a special reason.

Lu Heng listened to Su Muyu's report and became more and more curious. He reminded: "Be careful, find a way to see what is under the blue hole?"

Su Muyu nodded and agreed: "Okay, I'm curious too. "

As the Chongming Bird slowly approached the center of the blue hole, its forward speed became slower and slower.

It was not because of resistance, but because it was trying not to touch the skeletons of creatures.

Since there were obviously problems with these skeletons, Su Muyu tried his best to control the Chongming Bird to avoid the skeletons and drilled towards the center of the blue hole little by little in order to avoid unnecessary trouble.

However, the closer to the center of the blue hole, the greater the density of the skeletons.

Su Muyu held his breath and concentrated, controlling the Chongming Bird with full concentration, while reporting the situation of the exploration: "Now it is about 500 meters away from the center, and the density of the skeletons of creatures is getting higher and higher.

"I dare not touch those skeletons of creatures, so I have to slowly find a way to drill through.

"When we were outside the skeleton area, these skeletons of creatures were still intact, and we could see the approximate form of the creatures when they were alive.

"When we were within 500 meters, these skeletons of creatures were basically incomplete, broken into pieces of bones, still floating in the sea water, rotating counterclockwise around the center at a very slow speed."

As Lu Heng listened, he could imagine the scene in his mind. He reached out and pressed her shoulder and asked, "Are you afraid?"

"A little bit." Su Muyu pursed her lips and showed a warm smile.

When she projected her consciousness onto the Chongming Bird, it felt like she had personally entered the ocean cemetery and was alone in the skeleton area.

This feeling is actually quite scary.

When Lu Heng put his hand on her shoulder, she felt a touch of warmth. The feeling of having someone she trusted beside her immediately dispelled her fear.

"But it's okay, I'm not afraid." Su Muyu said this, but her hands involuntarily hugged Lu Heng's arm, her eyes continued to be closed, and she controlled the Chongming Bird.

As the Chongming Bird gets closer and closer to the center.

Su Muyu's heartbeat was also slowly accelerating. When she approached the center position, she was stunned for a moment and said:

"I may have seen something underneath the Black Bone Blue Hole, but..."

"But what?" Lu Heng frowned slightly, feeling a little appetized.

Su Muyu went on to explain: "The Chongming Bird has entered the center of the blue hole, and at the bottom, you can already see the rocks on the seabed.

"There is a pile of bones gathered together on the seabed, about thirty meters in diameter, piled up into a square area, like a cube, but you can't see what's underneath the bones."

When Lu Heng heard this, he became even more confused and asked, "Can you get into this pile of bones?"

Su Muyu shook her head: "No, this pile of bones is piled densely together. There is no gap to get in, unless an attack is launched to shake these bones apart."

There is a pile of square skeletons under the Black Bone Blue Cave. There must be something inside, and there is a high probability that it is something very scary.

The question now is, do we want to see clearly what’s underneath?

Moreover, even if you want to see it, you may not be able to see it.

Lu Heng thought carefully and said, "Try to see if you can move the bones."

"Okay, let me give it a try." Su Muyu nodded in agreement, and then controlled which bones the Chongming Bird extended its claws to move.

The next moment, her body trembled, her eyes opened suddenly, and she gasped: "I lost the connection with Chongming Bird."

Lu Heng reached out and patted her back and asked, "Are you okay?"

Su Muyu waved her hands and replied: "I'm fine, just a little mental backlash, it's not a big problem."

Lu Heng then asked: "What just happened?"

Su Muyu recalled and explained: "Actually, I don't know very well. As soon as the Chongming Bird came into contact with the pair of square bones, I instantly lost the connection with the Chongming Bird. I don't know what happened specifically."