Harry Potter and the Order of the Phoenix

“It’s ideal for headquarters, of course,” Sirius said. “My father put every security measure known to Wizard-kind on it when he lived here. It’s Unplottable, so Muggles could never come and call — as if they’d have wanted to — and now Dumbledore’s added his protection, you’d be hard put to find a safer house anywhere.

Sirius gave a short, barklike laugh.

don’t apologize,” Sirius mumbled at once. He turned away from the tapestry, his hands deep in his pockets. “I don’t like being back here,” he said, staring across the drawing room. “I never thought I’d be stuck in this house again.”

“You never said she was your —”
<…>
D’you think I’m proud of having relatives like her?”
“Sorry,” said Harry quickly, “I didn’t mean — I was just surprised, that’s all —”

The name had stirred something in his memory; he knew it from somewhere, but for a moment he couldn’t think where, though it gave him an odd, creeping sensation in the pit of his stomach.

“You and Tonks are related?” Harry asked, surprised.
<…>
“You’re related to the Malfoys!”
“The pure-blood families are all interrelated,” said Sirius.<…>there are hardly any of us left.
<…>
and Arthur’s something like my second cousin once removed. But there’s no point looking for them on here — if ever a family was a bunch of blood traitors it’s the Weasleys.”

From what I found out after he died, he got in so far, then panicked about what he was being asked to do and tried to back out. Well, you don’t just hand in your resignation to Voldemort. It’s a lifetime of service or death.”

“Kreacher lives to serve the noble house of Black —”
“— and it’s getting blacker every day,” said Sirius.

“Don’t kid yourself, Hermione, he knows exactly what he’s saying,” said Fred,

The elf took absolutely no notice of Harry and the rest. Acting as though it could not see them, it shuffled hunchbacked, slowly and doggedly, toward the far end of the room, muttering under its breath all the while