"That's right, Darren. You have to believe that you're the kindest person there is. No one is more pure-hearted than you!"
Harry and the others earnestly comforted Darren.
Darren believed that he was a kind person.
Then he looked at Kreacher.
Kreacher had been smashed to the ground by Harry, his face full of pain.
Darren helped him up.
He knelt on the ground and hugged him.
"Kreacher... I'm sorry. Back then, I didn't know everything... If we had known the truth at the time, you wouldn't have had to help the Malfoy family... Listen, Kreacher, I heard what you said just now. You still consider Regulus your master... Then you should recognize this note too..."
Darren took out the note that had been stuffed inside the fake locket Regulus had made, which he had retrieved from the cave earlier.
At the sight of the note, the house-elf burst into tears.
"Young Master Sirius was a bad child... He ran away, so Young Master Regulus inherited the Black family name. Young Master Regulus kept gathering information about the Dark Lord. Young Master Regulus worshipped the Dark Lord. Finally, Young Master Regulus joined the Death Eaters. It was the glory of the Black family... He was a good child, a good child just like Young Master Darren Potter!"
Moral High Ground!!
Kreacher continued.
"A year after Young Master Regulus joined the Death Eaters, the Dark Lord needed a house-elf... Young Master Regulus offered Kreacher..."
The house-elf began to sob.
"The Dark Lord took Kreacher to a cave. It was terrifying... There were many Inferi... Kreacher saw a basin, and there was a lot of potion inside it... The Dark Lord forced Kreacher to drink all of it... Fire burned Kreacher... Kreacher saw many terrifying scenes... Kreacher saw the Dark Lord laughing.