Just a Defense Against the Dark Arts Professor

"Voldemort has set up magic here. Either he drinks the poison in the stone basin, and when he gets the Horcrux inside, he will be thirsty and wants to drink the water in the lake, and is dragged down by the Inferi, or nothing. Even if you leave here, you will still face attacks from these monsters.”

Dumbledore, who was still in his crow state, looked at the Inferi that had been trapped in the sea of ​​fire and said softly.

The wands floating around Sherlock floated back to their original positions, and he curled his lips.

"Such a method is really low-level. It doesn't look like it was designed by a wise wizard."

Dumbledore the crow chuckled.

"Riddle is very smart, but he does have obvious shortcomings in some aspects, and that's why it's possible to find ways to deal with him."

While they were talking, the boat finally reached the shore. After the bow of the boat docked, Dumbledore spread his wings and flew down from Sherlock's shoulders, changing back to his human form.

The two did not stay in the cave. After retracing their steps and leaving here, they directly used Apparition to return to No. 12 Grimmauld Place.

They had been in the cave for a day, and when they arrived at No. 12 Grimmauld Place, the sky was completely dark.

"It seems we are destined to miss today's opening dinner."

Dumbledore waved to the air as he spoke. The next second, golden light flashed in front of him, and Fox appeared in the golden light and landed on his shoulder.

He waved his wand and conjured a piece of parchment and a quill. He quickly wrote a short letter and handed it to Fox.

"Give it to Minerva, she will know what to do."

After arranging things at school, he and Sherlock walked into the inner room from the hall.

Someone in the house heard the noise, and Mrs. Weasley came out with a surprised look on her face.

"Dumbledore, and Sherlock...shouldn't you be attending the back-to-school dinner right now?"

"We have more important things to deal with."

Dumbledore briefly explained to her, and then asked solemnly.

"Have you seen Kreacher, Molly."

Although Mrs. Weasley was a little confused, she could tell that his expression was not a joke.

"I saw him cleaning on the third floor just now. Sir, he should be still there now."

"Thank you very much, and the pie you made yesterday tasted really good."

Dumbledore and Sherlock passed Mrs. Weasley together and they reached the third floor.

As soon as they walked out of the corner of the stairs, they saw the skinny house elf, muttering something hateful while sweeping the floor.

Sherlock and the others made a lot of noise as they went upstairs. When they appeared, Kreacher was already staring at the corner of the stairs with his big eyes that seemed to pop out of his sockets.

Looking at Dumbledore, Kreacher's eyes were obviously bored, but the order given to him by Sirius forced him to salute the old man.

"gentlemen."

Dumbledore didn't show any urgency. He looked at Kreacher with a calm and gentle look, no different from when he faced other wizards.

"Kreacher, can I talk to you?"

Corncoat

Faced with his request, Kreacher showed some resistance.

"I still have work to do, sir, and I still need to clean here..."

"It won't take long. I want to talk to you about Regulus." Dumbledore said, staring into the elf's eyes.

When Kreacher heard the name Regulus, his body visibly trembled.

His eyes, which were already big enough, opened even wider.

"Thunder, Master Regulus?"

Dumbledore nodded, his deep blue eyes revealing solemnity and respect.

"That's right, Regulus Black."

Kreacher finally agreed to Dumbledore's request to talk. He put down his work and sat at a square table on the third floor.

Sherlock said nothing. In terms of communication, it was naturally more appropriate for Dumbledore to speak.

"We have just returned from a cave," Dumbledore said.

Kreacher looked at him eagerly, with shock, uneasiness and fear in his eyes.

"A cave? A cave with a big lake?"

"There is indeed a lake inside, and there is a stone platform with a stone basin in the center of the lake. We used some means to see some things in the past there. And in that story, you appeared in a total of two Kreacher, both times, with different people.”

Kreacher's body was shaking even more violently. He seemed to recall some terrible past, and his big eyes were completely filled with fear.

"I...Master Regulus...and that person..."

He was stammering, his voice was obviously crying, but he could only speak a few simple words.

Dumbledore did not urge or say anything to force him. Instead, he placed a teacup in front of Kreacher and poured him a cup of tea.

The nature of the house elf made Kreacher instinctively panic. He looked at the cup of tea, and his eyes, which were already misty, became even more nervous now.

"If you don't mind, tell us about your experience."

Kreacher was sobbing softly. He was so emotional that he seemed completely speechless.

Dumbledore and Sherlock just waited quietly. After about ten minutes, the old house elf finally calmed down.

"When Master Regulus was sixteen, he joined the Dark Lord's organization. He was so proud, so proud, and so happy. Especially after Master Sirius left, he became the only pride of the mistress."

"A year later, one day, Master Regulus came to visit Kreacher in the kitchen. Master Regulus has always liked Kreacher. Master Regulus said... He said... The Dark Lord needs a little boy. Elf."

Sherlock and Dumbledore looked at each other. After hearing this, they had basically guessed what the scene was like when they saw Voldemort bringing Kreacher there in the cave.

Later, with Kreacher's narration, they completely figured out what happened.

Just as they had guessed, Regulus, who was originally a loyal follower of Voldemort, discovered his true identity and finally chose to resist.

He learned from Kreacher that Voldemort hid a very important thing in the cave, so he went with him to replace the locket, and he drank the poison in the stone basin and died there. Lake bottom.