Comprehensive film and television: Extreme reversal and inevitable death

If Dumbledore hadn't led the way himself, who would have known that behind the painting in the Hog's Head Inn, there was a passage leading to the Room of Requirement in Hogwarts?

Of course, Regulus couldn't take out Slytherin's locket box in public. He just used himself as a metaphor and talked to "Aberforth" about the past in a vague way.

Something... about Voldemort's childhood when he was still called "Tom Marvolo Riddle".

As Tom's guide into the wizarding world, Dumbledore almost instantly realized what this strange-looking man in front of him was discussing with him.

Something like this, which should not be known to outsiders except the two parties involved, was suddenly brought up again one day. This was a rare experience for Dumbledore, who was accustomed to arranging everything.

He was also convinced that the young man in front of him had indeed come into contact with Voldemort's Horcrux.

Even learned some old things from the past.

Although no one knows how he did it, cutting souls and making Horcruxes are things that few people have dared to do throughout history.

Therefore, even someone as knowledgeable as Dumbledore did not know what the reaction would be if an outsider got hold of a Horcrux.

But these were not the reasons why Dumbledore easily gave that bit of trust. The real reason why he was willing to bring Regulus into the secret passage was because Regulus habitually called him "Principal" during his "chat".

Dumbledore never shows mercy to his enemies, even if they were once his lover or confidant.

But he always couldn't help but have high expectations for his students.

Even as cruel as Voldemort, there was once a period of peace between them.

Therefore, when Regulus revealed that he already knew how to destroy the Horcrux, Dumbledore no longer hesitated and immediately got up and took him away.

When they left, the real Aberforth walked back from where they disappeared, without even a glance, still the weird little old man.

The Room of Requirement can be said to be the most mysterious place in Hogwarts.

Even Dumbledore, who had spent nearly half his life in this huge castle, did not dare to say that he had thoroughly studied all the secret rooms and secret passages in Hogwarts.

It is really too old.

But for Regulus, this was actually a pleasant surprise.

He pulled Dumbledore, who wanted to continue discussing with him how to solve the hidden dangers of dark magic, and tried hard to recall the appearance of Ravenclaw's crown.

Dumbledore wasn't sure what Regulus was going to do, but he stayed by his side in silence.

Anyway, he believed that the child would tell him everything in a moment.

After trying several times, Regulus finally found the shining crown from a pile of debris.

Like Slytherin's pendant, this ladies' crown is also a relic of the founder from thousands of years ago.

"Wow... If my brain is not confused, this should be the legendary crown left by Ms. Ravenclaw that can give wisdom to the wearer..."

Regulus handed over the Ravenclaw diadem, and in return received a sigh from Dumbledore.

He looked at the crown in his hand, and many complex emotions flashed through his eyes, including regret and sorrow.

The mysterious treasure from the founder of Hogwarts was thus eroded by evil black magic and became a vessel for Voldemort to play with souls.

How can this not be called pathetic?

"It seems that you know more about Horcruxes than I thought."

As a great wizard with profound magical powers, Dumbledore felt the huge dark magic entangled in the crown from the moment he touched it.

The power that made him feel irritated and uneasy made him gasp in amazement.

"Yes, Dumbledore. I have no intention of hiding anything."

The effect of the Polyjuice Potion was slowly wearing off, and in front of Dumbledore, Regulus had turned back into the taciturn Slytherin boy.

Dumbledore raised his eyebrows in surprise at the child who had revealed his true identity.

It can be said that before this, he had guessed many identities, but he never expected it to be Regulus.

After all, the entire wizarding world knew how obsessed the crazy Black family was with Voldemort's pure-blood theory.

Although their family had a son, Sirius, who was devoted to the light, there was only one Sirius. (Andromeda, who eloped and lived in seclusion, was not counted.)

Regulus, who was pushed into office by the family to become the new heir after Sirius ran away from home, is recognized by everyone as a qualified Death Eater.

Being branded with the Dark Mark at the age of 16 is both a compliment and a shackle and prison.

"Regulus, to be honest, I didn't expect it to be you..."

Dumbledore's mind was in a whirlwind as he looked at the young man in front of him intently. He found that he was terribly thin and almost completely different from the boy he looked in school.

He wondered in his mind what kind of misery this child had endured to know such a secret as Voldemort's Horcruxes.

Although Regulus rested at home for a few days after returning from the Black Lake, he did die once after all.

Not only is he dead, but his soul has been torn apart, so he looks really bad now.

To put it simply, it is a wounded soul controlling a dead body.

The current situation is probably the legendary living dead.

His hands and feet were cold and showed no signs of improvement. Mrs. Black was very worried about this and had been secretly searching through the Black family's collection of books to see if there were any spells or potions that could come in handy.

Therefore, it is no wonder that Dumbledore was stunned when he saw Regulus like this.

"If it's convenient, could you tell me what you've been through and how you found out what 'he' did?"

Dumbledore's voice softened a little. He now particularly regretted not having a glass of lemon sherbet at hand. (Multiple) sweets could always soothe a hurt child.

At least that's what he firmly believed.

Hearing Dumbledore's question, Regulus nodded and briefly described how Voldemort used Kreacher for experiments and placed Horcruxes in the Black Lake.

As for how he came back to life, he just brushed it off.

Let Dumbledore, a smart man, guess this kind of thing himself. The more he thinks about it, the better.

Finally, Regulus concluded:

"…Perhaps it is because I crawled back from the Black Lake that I was able to receive some of the past memories of the Horcrux owner when I came into contact with the Horcrux."