With that, Old Serry slowly but firmly stood up and walked over to Harry.

"Remember, you're from Atlantis." He said to Harry, and placed the golden trident in Harry's hand.

At the same time, a number of symbols that Harry didn't recognize suddenly appeared on the ground, and they were grouped together and flowed slowly, as if they were some kind of magic circle.

Old Serry placed the trident in Harry's hand, then grabbed Harry's hands and aimed the tip of the trident at himself.

"I hope you're right." He glanced upwards, and Harry followed suit, only to see an eye floating above the cave, and it was staring at the two people below.

The eyeball split in the middle, revealing a mouth that grew over the eyeball, full of bloodshot teeth.

Harry shuddered at the sight. When had he ever seen such a scene.

"I'm not right to you, right? You killed Garyu and snatched the Abyssal Slab, thinking that you could learn these Secret Texts with your little creature modified.

It wasn't a half-way failure, leaving behind a creature core and a large squid," the eyeball spoke.

At the end, he muttered, "In the end, I can't only migrate to the Black Lake!" ”

Old Seri didn't say anything, but there was a depression in his eyes. Then he looked into Harry's face, "It's a good thing I've survived with The Abyssal Slab, otherwise I wouldn't have met this little guy!" He was a gift from heaven. ”

With a frenzied look on his face, he grabbed Harry's hand and stabbed the trident into his heart with a slam of his hand.

"No!" Harry cried out in horror and tried to pull his hand out, only to find that Old Serry's hand was clutched like an iron hoop.

Harry's eyes widened, not understanding what old Serry was trying to do. He was stabbed in the heart, but his eyes were more attentive. Harry was grabbed with one hand, and the other was down the trident and into his chest.

The sound of flesh squeezing reached Harry's ears, and Old Serry pulled hard, pulling out a dark black slate the size of a book.

"Listen to the kid. This one is called "Abyssal Slate". It contains a record of the method of becoming a sea beast sacrifice and the exclusive spell. It's also the key to my survival to this day. Therein lies power beyond imagination. ”

It was as if this slate was his heart, and as soon as it was pulled out, old Serry began to decay.

"Now it's yours." Old Serry pressed the slate against Harry's chest. Then Harry saw the slate slowly melt into his chest.

It's like putting hot rocks in snow and ice. Harry tried to stop him, but his hand was so caught that he couldn't move at all.

But in the blink of an eye, the slate entered Harry's body.

After that, Old Serry pointed his finger on Harry's forehead. Then, a large stream of unmalicious knowledge came to Harry's mind.

Fish-Man Language, Fish-Man History, Kraken, Naga, Fish-Man. Atlantis History. The degradation of the fish-people: the ancestors, the remnants, the outcasts.

This knowledge quickly became part of Harry's memory, and at the same time, Harry also learned the name of the old mermaid in front of him.

Fish three, if translated into English, is Seri Fisher.

What Yusan brought into Harry's mind was not only knowledge, but also his centuries-old beliefs, and the dreams that Yusan and Garyu shared......

A large stream of knowledge flooded into Harry's mind, instantly stunning him. At the same time, Yusan, who had given everything to Harry, also slowly fell.

The runes on the ground also began to slowly lose their luster.

The only living thing still moving in the quiet cavern was the eyeball monster that was swimming.

He flew up to Harry and circled around him several times.

"From now on, you will be the Sea Beast Sacrifice: Harry Potter!" After speaking, he spoke lightly to the bottom.

"Send him back, I think it won't be long before he Harry Potter is your master." With that, the mouth of the cavern blocked by the boulder was cracked, and two huge squid tentacles drilled through the long tunnel, sweeping Harry and the trident away.

After Harry left, the eyeball monster suddenly grew several times, and then, like a Fall Guy, began to plunder in the grotto. Took away a lot of the books, the medicines.

After sacrificing the grotto, the eyeball shrank back in size, and the substance he had swallowed had gone.

After that, it glanced at Old Serry's corpse and said nothing. Instead, he lost his life, like a sudden death, and fell weakly into the water, and the flesh and blood slowly melted, and then quickly separated by the water.

It's as if this eyeball never appeared.

The fish-man village outside did not become agitated, and it seemed that old Seri had already settled the aftermath.

————————

When Harry opened his eyes again, he saw himself lying next to the Black Lake.

By this time the rain had stopped, and I don't know how long it had been, and the moon was shining on the black lake, sparkling, like his scales.

He's now back to being a normal boy.

Harry rubbed his aching head, and Harry, who had accepted the language of the Fishmen, understood what was happening.

Tonight, the Siren named Yusan deliberately lured him to the Black Lake, and tied himself to the cave. He gave himself the secret book of the sea beast sacrifice, the Abyss Slab.

Thinking about it, Harry rubbed his chest, which contained the Abyssal Slab, which was now in a symbiotic relationship with his heart.

Although the Abyssal Stone Tablet is called a secret book, it has nothing to do with books, and the practice method of the secret art of sea beast sacrifice is engraved in the stone tablet. If you want to get the contents inside, you can only get it by integrating the slate into your body and achieving a symbiotic relationship.

At the same time, Serry seems to have used some other way to get Harry to skip the ritual of becoming a sea beast sacrifice, in other words, Harry is now a sea beast sacrifice.

To put it more rigorously, Harry would naturally become a sea beast sacrifice in a few months. Because his body still needs a stage of adaptation.

Harry sorted out the sea beast's sacrifices, and then looked to his side.

And this one for him at the same time-

He raised his hands on the golden trident that lay with him.

There's no way a humanoid self could have used this thing as a weapon. Harry thought to himself.

This is the weapon of the sea beast sacrifice.

Harry did not reject the fact that he would transform into this half-human, half-fish form because it would be particularly comfortable in the water, and because this gesture helped him escape the Dursleys.

Now not only does he not reject it, but naturally accepts his identity as a fish man, although he still doesn't know why he has such an ability, but with the knowledge given to him by Yu San into his mind. His thinking was also affected.

Harry now imagined what he would look like in the future when he would use the spell of the Sea Beast Sacrifice to show his might in front of Ron, Jane, Hermione, and others.

The main ability of the sea beast sacrifice is to drive the sea beast and borrow the power of the sea beast.

Thinking about it, Harry put on his wet clothes, wrapped the trident in his robe, and tiptoed back to the castle.

At the same time, he did not forget the incident of the big snake Sade he encountered.

But he was going through so much that he was wondering what to do with Ron. This kind of thing must be shared with his best friends, Harry thought.

But you should go and tell Dumbledore first. Thinking of this, he felt a little ashamed inexplicably.

How can I make trouble for Dumbledore every day?