HP: Let professors walk towards the light

"Lake? What does he want you to do?" Ron asked impatiently when he saw Kreacher hesitating.

"Don't force him like this. Can't you see how scared he is, Ron? It must be a very cruel thing!" Hermione squatted in front of Kreacher and asked softly what happened.

"We took a boat to the island... There was a basin full of potion on the island... The Dark Lord made Kreacher drink it... Kreacher drank it, and when he drank it he saw something very horrible... Kreacher felt as if his body was on fire... Kreacher cried and screamed for his master Regulus to save him, and for his mistress Black, but the Dark Lord just laughed... He made Kreacher drink all the potion... He put a box in the empty basin... He filled it up with more potion."

Kreacher's tears kept welling up as he recalled the pain.

"Then the Dark Lord rowed away, leaving Kreacher alone on the island."

Hermione looked very distressed.

"Kreacher needed water, so he climbed to the edge of the island and drank water from the black lake... Many dead hands appeared, stretched out from the water, and tried to pull Kreacher under the water..."

"Oh my God! What is that?" Hermione exclaimed.

"My Merlin, from the water? Dead people?!" Ron felt the despair as if he were there himself.

"But you came back safely. How did you escape? What was that thing?" Harry asked.

"Because Master Regulus asked Kreacher to come back, Kreacher is back...because Master Regulus asked Kreacher to come back." He answered.

"I'm asking about how you came back, and those dead people." Harry didn't quite understand Kreacher's inconsistent answer.

"House-elves can Apparate, so he had the only way to come back that way. The dead people in the water, I think, are the Inferi, dark magic creatures. Voldemort probably thought that those Inferi would kill Kreacher, but he ignored the magic of the house-elves, which he despised." Reina explained.

"Inferi? This is the homework assigned by Professor Lupin!" Hermione turned her head and looked at Rena.

"Yes, the Inferi, the body in the water, that fits what he said, doesn't it?"

"Oh my God! That's a very cruel creature. Kreacher, you're lucky you're back." Hermione said to Kreacher gently.

"Did you tell Regulus when you came back? What did he say?" Harry continued.

"Master Regulus was very worried about Kreacher, and he told Kreacher to stay in the house and not go out. After a while he found Kreacher in the cupboard. Master Regulus was very strange, different from usual, and he seemed mentally confused... He wanted Kreacher to take him to the cave, to the cave that Kreacher had been to with the Dark Lord..." Kreacher's eyes were wandering, but he was still answering Harry's questions.

"He asked you to drink the poison?" Harry showed a hint of disgust.

Kreacher quickly denied it and shook his head desperately.

Everyone seemed to understand something at this time. Hermione covered her mouth, and Harry felt a little guilty about what he had just said.

"Master Regulus took out the same box as the Dark Lord. He told Kreacher to wait until the basin was empty and then replace the box."

Kreacher's face was already covered in tears, and his almost hoarse voice turned into a scream.

Reina walked to the door and cast an anti-eavesdropping spell on it. Although they were on the top floor, they should not alarm the people downstairs, otherwise Sirius's arrival would only cause more chaos. Then Reina leaned against the door and listened to their conversation with her eyes closed.

"Then he ordered... Kreacher to leave... He also told Kreacher to go home and not tell the mistress... what he had done, not to tell anyone in the family, and to destroy the first box, and then... he drank all the poison... After Kreacher switched the boxes, he saw his master Regulus... being dragged under the water... being..."

"Poor Kreacher!" Hermione shed tears. She knelt on the floor and wanted to touch Kreacher and hug him.

"Regulus sounds more pitiful. He did a great thing, but until now his body is still bound under the water by those Inferi and cannot rest in peace." Reina crossed her arms over her chest and still did not open her eyes.

Hermione's hand, which was stretched out to hug Kreacher, stopped in mid-air.

"That's a Horcrux, right?" Harry looked at Lena.

"So Snape took the Horcrux on Dumbledore's orders? Lupin seemed to know something, and the homework was also an Inferi. Is it such a coincidence? Or do they all know about this?"

"Professor Snape and Headmaster Dumbledore probably already know about this, after all, it involves Horcruxes. But what is certain is that your godfather must not know about it, after all, you also mentioned that he doesn't seem to have a very good attitude towards his own brother." Reina raised her eyes and looked at Harry.

"Regulus, he even tricked Voldemort. What a great hero." She chuckled.

"Hero...?" Harry lowered his eyes, thinking about something.

"So, Harry, are you going to tell Sirius?" Lena asked.

"Logically, we shouldn't keep this a secret." Hermione stood up from the ground.

"And it sounds like a big deal," Ron agreed.

"If Sirius's brother was a hero, he would be proud of his brother..." Harry looked at Kreacher.

"I will." Reina responded.

Because Sirius investigated the truth behind his brother's death because he had expectations for him.

"Why don't we take Kreacher away and have him talk to Sirius again." Ron pointed at Kreacher who was curled up on the ground.

"Bad idea Ron." Hermione stood in front of Kreacher.

"He can tell us that he has gone through greater pain, so should we let him continue to recall it? He is in a very bad state now."

"Okay, okay, then let Harry talk to him. Harry is the godson." Ron turned to Harry again.

"Well, we know almost everything now. Let's go down quickly, otherwise the adults will come looking for us." Reina opened the door.

"Ah, they're here." Reina glanced at Lupin standing at the door and Sirius with a sullen face, then stepped aside.

"I didn't expect it would take you so long. After all, I can't stop the owner of the house from inspecting his house on a whim." Lupin spread his hands.

"But the anti-eavesdropping charm and the locking charm are really good. Even I can't do anything about them."

Lupin looked at Rena at the door. Dumbledore had talked to him about Horcruxes not long ago. It was then that he learned that Snape had such a job. Although Dumbledore did not explain about Regulus, he could guess from his words that Regulus' death was not simple.

Dumbledore naturally wanted to make the investigation into Regulus' affairs public, but Lupin was concerned about Rena. This girl who had a close relationship with Snape seemed to know Dumbledore's plan. He didn't need to worry too much about what Dumbledore would do. What was important was that he was curious about what was so special about this girl who was the same as Harry and the others, and her relationship with Snape. After all, there had been quite a few rumors about Snape recently.

He was being watched. Lupin was still as sharp as ever, worthy of being a werewolf, wasn't he? Reina caught Lupin's gaze on her from the corner of her eye. Although she thought so, she just smiled in her heart.

"Tsk, so, what the hell are you little brats doing here--" Sirius lifted his bangs, looked around Regulus' room with a gloomy face, and looked at them with his hands on his hips.

"Uuuuuu——"

Kreacher's sobbing in the corner successfully broke the brief silence.