Canaan tapped his wand against the wall, and the wall began to shake, revealing a dark cavern.

The cave is full of worn cobwebs, and it looks like it has been abandoned for a long time.

Dumbledore leaned in, "Looks like we've found something amazing. ”

"Is it true that the pure-blood family wants to have such a secret room?" Canaan couldn't help but ask, he found that both the Hoffman family and other pure-blood families seemed to have such a hole.

"Not every family has it, only pure-blood families who have a long tradition like to do it. Dumbledore said slowly, then took his wand and walked down first.

The temperature inside the cave is extremely low, and the material of the two walls is somewhat special, and the light seems to be absorbed when it hits here, which makes the whole cave look even more eerie.

Canaan also found that the white bones of some small animals were scattered underground, some of which had been pulverized.

"What do you think is hidden here?" asked Canaan, breaking the silence.

"Maybe it's some family book collection or something, you know, a lot of families value knowledge more than wealth. Dumbledore guessed.

It wasn't long before they saw a dark red candle light source flickering in the basement ahead.

"Who's outside?Marvolo or Mofin?" At that moment, a high-pitched, thin, shrill voice came from inside.

Marvolo Gaunt is the heir to the Gaunt family and Voldemort's maternal grandfather, though they have both been dead for many years.

Canaan and Dumbledore looked at each other, then cautiously walked inside.

The cacophony didn't stop, "Oh, it's a damn thief, this stupid Marvolo actually let the thief infiltrate the ancestral land of the Gaunt family. I swear to Merlin that I have never seen such a stupid offspring. ”

The two went into the basement only to find that what they had been chattering about was a painting hanging on the wall.

He had a bald red head, only some sparse white hair on either side of his sideburns, and a stiff beard on his chin, which was rough and unusually sloppy.

"Oh, it's a little ghost and a bad old man. The man in the portrait screamed when he saw Dumbledore and Canaan.

"Is it the new heir to the Gaunt family?" he patted his head again, as if talking to himself.

"Who are you, sir?" asked Canaan.

"Where is Mavolo? Let him come to me. Ignoring Canaan, the bald old man shouted.

"Mr. Mavolo has been dead for many years. Dumbledore replied. He and Marvolo have a decent relationship.

"Damn, I said why haven't you come to see me in all these years, but what about Morfin Merope, who was a pretty little girl, and I think they're all grown up by now," said the bald old man with a look of remembrance.

Canaan looked at the clutter piled up in the basement and turned his head and replied, "I'm sorry, they're all dead, sir." ”

"Oh, that's sad news. The bald old man hid his face and wept, as if he couldn't believe the news.

He looked up again, looked at Canaan and Dumbledore, and said, "Who are you, how did you end up here?" ”

"He's the Headmaster of Hogwarts, Dumbledore, and I'm his student. Canaan spoke, then picked up the two books that had been crushed in the corner by the debris.

These two books are covered in black stains, and I think they've been here for a long time.

"Albus Dumbledore, I know you, Marvolo introduced you before, saying that you are the greatest white wizard of the century, and the best headmaster of the school that Slytherin founded. It seems that it was a wise decision that I didn't stop Slytherin from building a school at the time. The bald old man looked at Dumbledore in surprise, completely losing the sad look he had just had.

"So, sir, who are you? Listening to your tone, you seem to know Slytherin. Canaan asked, blowing dust on the book.

"Oh, of course, I'm his brother, and you can call me Slytherin as well. The bald old man looked proud.

"Well, Mr. Slytherin, so you've been living in this painting for over a thousand years?" Canaan opened the book in his hand and found it full of experimental notes, which seemed to be related to blood.

"Kid, are you interested in those books?" asked Slytherin with a smile without answering Canaan's question.

Canaan nodded, not replying, already captivated by the notes in the book.

This book not only records the cultivation process of various magical creatures, but also records the experiments related to the human bloodline.

Perhaps these books are part of the legacy of the real Slytherin.

After all, the Gaunts are descendants of Slytherin, so it's no surprise that they own these books.

Seeing that Canaan was already attracted to the contents of the book, Slytherin couldn't help but say, "Little ghost, I wrote those notes. ”

"You wrote that?" Canaan said in surprise, looking up in surprise, assuming that the notes were the actual Slytherin's experimental notes.

"Oh, of course, my full name is Willic Slytherin, and I think this Mr. Dumbledore should have heard of it. ”

Dumbledore was holding another book and looking at it with relish, and when he heard this, he nodded and recalled, "There is a headmaster journal at Hogwarts that does mention that Slytherin has a younger brother, shrewd, ambitious, and reckless.... Died because of his own stupid experiments..."

"Damn, who wrote this comment, I should have shoved a garlic into his black-haired nostrils. Slytherin roared, and then he continued to scream, "Gryffindor must be jealous of me, only he will slander me, shit, shit..."

Slytherin cursed for a few minutes before he seemed to finish venting his anger.

He collapsed in the portrait, as if he wanted some beautiful picture, and muttered weakly, "My dear Rowena... I'll never see you again..."

Is this a Ravenclaw suitor?

"Mr. Slytherin, do you know the legacy your brother left behind?" Canaan couldn't help but ask, after reading the book in his hand roughly.

The study of bloodlines in this book is very novel and gives Canaan new ideas about his Anigmas.

"You're here for the heirloom?" said Slytherin, sitting up from the portrait.

"Of course, you know the whereabouts of that thing?"

"Little ghost, that's not a thing, it seems that you haven't passed the test he left behind, I can't tell you. Slytherin shook his head.

Canaan shrugged helplessly, "Oh, well, but Headmaster Dumbledore next to me may have passed the test, and he once received part of your brother's inheritance." ”

Dumbledore met Slytherin's gaze, "In that grotto in the Forbidden Forest, I passed the test set by Slytherin, but there was nothing left there, only a few scattered books. ”

Slytherin nodded, "It seems that you really passed my brother's test, and that grotto is not something that can be found by chance." If Marvolo hadn't taken me out of the grotto, maybe I could have been discovered by you sooner. ”

"Mr. Slytherin, can you tell me more about what your brother left behind?" asked Canaan.

"Of course... No, you're still here, and I'm not going to say anything. Slytherin glanced at Canaan, put his hands on his chest, shook his head, and swayed.

Canaan spread his hands helplessly, resisting the urge to cast a spell.

"This kid was a student of Rowencklaw, and got it, a relic of Rowencklaw. Dumbledore said slowly.

"Really?" Slytherin was a little incredulous.

Dumbledore nodded, and continued, "And Ravenclaw still explained something to this kid in the Sorting Hat. ”

Slytherin's eyes immediately widened, and he hurriedly asked, "Little ghost, what did Rowena say to you?"

Canaan smiled and said nonsense, "She wanted me to find her inheritance, and said she could find Slytherin student help if necessary..."

"I knew that Rowena still remembered me. Slytherin laughed, then paused abruptly and sniffed deeply in the air, revealing a look of intoxication, "I still vaguely remember your fragrant scent, oh my dear Rowena, I will help your students find your legacy..."

Looking at the affectionate Slytherin, Canaan couldn't help but buckle his nose, damn, it turned out to be a licking dog.

After a long time, he relented, looked at Canaan and said, "Since you are a student of Royna, I can also talk to you, but you need to promise me not to reveal these things, otherwise your souls will not rest." As he spoke, his voice grew thicker, as if he were reciting some ritual incantation.

Canaan and Dumbledore looked at each other solemnly and nodded.

"My brother Slytherin was a true genius, he was proficient in alchemy, and one day he discovered that the pure-blood wizards of the wizarding world at that time were much better than the half-blood wizards, and that many magical creatures had a soft spot for the blood of wizards. So he guessed that there was some unknown mystery in the blood of wizards, and then he began to study the blood of wizards. ”

"Living research?" Canaan frowned.

"Oh, of course not, my brother is not a murderer, and the material he studies is mostly dead wizards, and occasionally a few evil dark wizards. Slythering paused, then continued, "It took him about three years to extract an active substance from his blood, and he thinks wizards are different from Muggles because of these active substances. ”

"Essence?" Dumbledore couldn't help but ask. He had found some records of this substance in the grottoes.

Slytherin nodded, and continued to recall, "My brother called this substance the essence of the essence, and only the blood of the wizard can extract this essence, and the purer the bloodline of the wizard, the more essence in the body. ”

"And then?"

Later he found out that he was not the first to discover this substance, and that earlier there was a wizard who discovered it, and that wizard's name was Poseidon. ”

Hearing the name, Canaan frowned, in the world of Harry Potter, Poseidon is a powerful wizard, legend has it that he has the power of the gods, can control the sea, and communicate with the creatures of the sea.

However, he was a figure from 10,000 years ago, and there are only sporadic descriptions of him in the ancient books of the wizarding world. He is most famous for the fact that he once slaughtered a large number of wizards and was recorded as an evil and ominous wizard.

Canaan also thought about Professor Fitz having gotten a trident in Ryugu, and if it had anything to do with Poseidon.

Moreover, since the appearance of Ryugu a year ago, Professor Fitz has disappeared, and it seems that the wizarding world will no longer find this person.

Not knowing what Canaan was thinking, Slytherin continued, "My brother discovered that Poseidon had collected a large amount of essence, so he searched the wizarding world for the traces that Poseidon had left behind, and finally he found Poseidon's laboratory for bloodline research by the Black Lake at Hogwarts. ”

"Black Lagoon?"

Canaan and Dumbledore's expressions began to grow solemn, and they seemed to remember something.

"Oh, there wasn't Hogwarts back then, and of course, because of age, there wasn't much left in the lab. Still, my brother discovered Poseidon's true intentions with the scarce information left behind in the lab. ”

"Slaughter wizards, destroy the world?" interjected Canaan. He thinks that when the plot develops here, there will usually be a villain boss.

"Who would be so boring. Slytherin glanced at Canaan, then said slowly, "Poseidon wants to be—God!" and he said the word "God" in a deep tone.

"Oh, that's really exciting news. Canaan spread his hands.

"Imp, I've had enough of you, you must be a Gryffindor!" Slytherin couldn't help but exclaim.

This imp keeps interrupting him!

One of the people he hated the most in his life was Godric Gryffindor, who also liked to interrupt people's conversations.

"Oh, I'm sorry, I shut my mouth. Canaan pulled his mouth shut.

He felt that he had indeed become much more talkative since he returned to the world of Harry Potter.

Could it be that he was infected by Stark?

"It's better to be like that. Slytherin nodded, pleased with Canaan's confession, and continued, "Because Poseidon discovered that it is not only the blood of wizards that can extract the essence, many magical creatures contain this substance, so he hunted the last remaining dragon in the wizarding world and obtained a large amount of the essence. ”

He glanced at Canaan and said with a mocking smile: "Little ghost, you must not imagine what kind of creature the dragon is, your thin body may not even be able to fill the gap between its teeth." ”

As he spoke, he gestured with his fingers to his sparse teeth and laughed.

Canaan pursed his lips, he wanted to say that not only had he seen dragons, but he also had two at home, and he would occasionally ride dragons with his girlfriend for a ride.

However, in order not to irritate this Slytherin, Canaan swallowed the words anyway.

Wait until you finish digging out the secrets in his stomach, and then slowly stimulate him later.

"Dragons are the closest creatures to gods, and they live so long that they can witness the rise and fall of a race. The essence in them is enough to change the true bloodline of a wizard and give the wizard the trait of "immortality". ”

"Did he succeed?" asked Canaan.

"No one knew that after hunting the dragon, Poseidon disappeared. There is no ancient record of where he went, perhaps he failed. However, my brother said that he may have succeeded, and the reason why he didn't come out was just that he was in a metamorphosis period. ”

"What is the metamorphosis period?"

Slytherin shook his head, "Oh, little ghost, I can't tell you this, this involves the true legacy that my brother left behind, and these inheritances, I can only give to Dumbledore!"