Sirius Black Quotes in Harry Potter and the Deathly Hallows
Dumbledore would have believed him, he knew it. Dumbledore would have known how and why Harry's wand had acted independently, because Dumbledore always had the answers; he had known about wands, had explained to Harry the strange connection that existed between his wand and Voldemort's...But Dumbledore, like Mad-Eye, like Sirius, like his parents, like his poor owl, all were gone where Harry could never talk to them again.
"Sirius was horrible to Kreacher, Harry, and it's no good looking like that, you know it's true. Kreacher had been alone for a long time when Sirius came to live here, and he was probably starving for a bit of affection. I'm sure 'Miss Cissy' and 'Miss Bella' were perfectly lovely to Kreacher when he turned up, so he did them a favor and told them everything they wanted to know. I've said all along that wizards would pay for how they treat house-elves. Well, Voldemort did...and so did Sirius."