Although these magical materials are nothing in the eyes of the merfolk, in the case of the Black Lake, these items do not seem to be in line with the productivity of the Black Lake.

Compared to the wizards, the merfolk tribe is undoubtedly barren, and they don't even have a mirror.

But from the wizard's point of view, the mermaid tribe is undoubtedly endowed with water, and the magic materials mastered by these merfolk are simply not too rich.

The mermaids, who were still trembling and watching Van Lin, became excited after Van Lin accepted those magic materials.

These were useless things to them, and they were happy to make a pleasant deal with this wizard who radiated a soft light.

Fan Lin is naturally not afraid, and the things he gave to the mermaid add up to only a few gold gallons that can be solved, and the mermaid's feedback exceeds this value.

Maybe this is also thanks to Hogwarts, because of the existence of Hogwarts, the realm of the Black Lagoon does not allow wizards to collect privately at all, to be precise, foreign wizards are not allowed to step into the scope of Hogwarts, but these things are still too much, take the transparent stone at the beginning, it seems that it is not very reasonable for such ore to appear in the waters of the Black Lake.

"These things, all from the Black Lake?" a series of bubbles erupted from Van Lin's mouth.

"Gollum...... It's not ......" a mermaid is playing with a mirror.

Van Lin really doubted that these merfolk would be frightened by their appearance.

"Isn't it?" asked Van Lin suspiciously.

"Part of it...... Collapsed, and there was a sea eye...... "A mermaid quickly catches it, and it is holding a hairpin above its head, which seems to be ...... Looks like Hermione's hairpin......

Van Lin quickly turned his head away, okay, Hermione lost a hairpin, this should be ...... It shouldn't be a big deal.

However, the mermaid's words were very concerned to Van Lin.

Collapse, Sea Eye......

"What's that?" asked Van Lin, "what collapsed, and the sea eye, the ...... of connectivity."

"Temple ......" a series of bubbles came out of the mermaid's mouth, "Not long ago, the underwater temple collapsed. ”

Van Lin suddenly remembered that it was the result of the hunt for Peter Pettigrew.

I don't seem to have been in time to see it, but the description is roughly the same as that of the mermaid.

"What is that sea eye?" asked Fan Lin quickly, his voice a little sharp.

"Go...... Other...... The waters ......," said a mermaid.

"You still have contact with the outside?"

"Sacrifice, pilgrimage......" bubbles kept bubbles coming out of the mermaid's mouth, and for a moment, Fan Lin's eyes were all filled with bubbles.

"Sacrifice...... Pilgrimage?" Before Fan Lin could think about it, a mermaid quickly said something, and then several merfolk grabbed Fan Lin's clothes.

"I'll ......take you there," the mermaid said.

Van Lin nodded, and then he felt his body being pulled violently, and the scene around him was moving rapidly.

The speed of the mermaid warriors in the water was indeed not comparable to that of humans, and after a while, Fan Lin felt that he had moved away from the original mermaid tribe.

This seems to be another lake.

Van Lin only felt that his eyes were dark, and then the whole person came to another area.

"Where is this?" Van Lin asked quickly, clearly sensing the difference around him.

The Black Lake is called the Black Lake because the sediment and seaweed of the Black Lake are all black, but here......

The exposed rock walls are green, which is the seaweed that is attached to it, which is characteristic of the Black Lake......

"Sea Eye ......" a mermaid said from Fan Lin's side, her bright yellow eyes rolling and pointing to the abyss below.

"Sea Eye?" Van Lin repeated in surprise, "Isn't this a natural formation?"

Van Lin looked at the fracture in the rock wall, which was more like ......

"Explosion...... Expand ......" The mermaid's mouth kept repeating these words, in fact, the mermaid's language was still a little too reluctant to express the content of a thing clearly.

"What do you mean......" Van Lin tidied up slightly, looking at the swarthy rift below.

"There was a kind of sea eye here, but the explosion later turned it into something like this?"

"Boom...... "The mermaid mimicked the scene, "heard...... Noise...... Sea Eye ......"

Is this a communication barrier?

"But what is the ...... of the sea eye?"

"Channel...... Pilgrimage ......"

"Pilgrimage?" Fan Lin smiled dumbly, he had learned about the culture of mermaids, and if he said that he was a pilgrimage, it was nothing more than the god of the sea.

I don't know which god they are talking about, Poseidon or Thiaz in Greek mythology?

Isn't it a mermaid again?

"Where can I get here?"

"Water...... Salt ......" the merfolk kept muttering these two words.

Stump to say it's the ocean?

This is really a bit unreliable, and Hogwarts to the nearest Atlantic Ocean is not something that a small sea eye can support.

Perhaps these merfolk are just feeling the difference between different waters.

However, Van Lin is still very careful about this......

Fan Lin frowned, and with a wave of his hand, a blue ball of light went deep into the so-called Sea Eye.

This process continued for a long time, until Van Lin's line of sight was out of reach.

Van Lin vaguely felt that there was something wrong here, but what he could see in the water was really limited, until finally, Van Lin felt that the light everywhere was going to be distorted.

"You say, pilgrimage, do you mean that you have to go there every once in a while?" Van Lin pointed to the darkness below, he wanted to go down and take a look, but for everything inside it was unknown, and there was no doubt that it required a lot of risk.

"One year...... Once ......" the mermaid spat bubbles in its mouth.

In fact, in the underwater world, the concept of day and night is not obvious, especially in this case in the Black Lake, and this distinction is even more difficult to distinguish.

The concept of a mermaid having a year is already very good, and it is completely impossible for Van Lin to get the same time rule from the mouth of this little mermaid as a human.

Fan Lin originally wanted to see the sacrifice of this mermaid tribe, but not knowing the exact time became the biggest problem.

There is no doubt that this is a pilgrimage that requires a specific time, just like those centaurs, but the centaurs are much more intelligent than the merfolk, and they have even mastered prophecy......

"How do you keep the time?"

"The Square...... The heart of the stone brightens......"