Kreacher Willing to Tell the Truth

"Just as I thought..." Hearing Kreacher's answer, Wizet nodded and followed his train of thought with another question.

"Kreacher, tell me now—the person who told you to destroy this locket... was it Mr. Regulus Black?"

"Regulus? What does this have to do with him?" The moment he heard that name, Sirius demanded, "Kreacher! Did you have something to do with his death?"

Sirius's words seemed to trigger something in Kreacher. He immediately began sobbing uncontrollably, wailing out a few broken phrases.

"Master Regulus... told Kreacher to swap the locket... leave and destroy the locket... drank all the potion... dragged underwater... Kreacher was not allowed to tell anyone..."

"Swap a locket? Drank all the potion? Dragged underwater?" Perhaps because this concerned Regulus, Sirius reacted exceptionally quickly.

"Regulus died because of the potion? And he told you to swap some locket?" He bent down, grabbed Kreacher by the shoulders, and shook him hard. "How could that be possible!"

"Sirius! Let go of him!" Remus quickly seized Sirius by the shoulders and pulled him aside, hissing, "At least let him finish! Don't you want to know the truth?"

After all, Regulus was Sirius's younger brother. Setting aside the issue of their opposing positions at the time, their relationship had certainly not been poor;

Otherwise, when Sirius had introduced Regulus earlier and spoken of the cause of his death, he would not have shown such sorrow and heartbreak.

Kreacher sat back down on the floor, tears still streaming endlessly down his face.

"We need the truth, Kreacher." Wizet pointed to the room behind Kreacher. "Why don't we talk inside?"

"I remember you said earlier that this was Mr. Regulus Black's room. I hope you can tell us more..."

"Since Mr. Regulus Black told you to replace a locket, that means that locket... is actually