"I imagine the whole working-in-a-hospital thing is part of it," he said, stretching out his legs lazily. "Don't breathe on me. I've got the immune system of a man six times my age."
"I admit, the motives are slightly selfish," he said, toying with a stray bit of thread on the arm of his chair. "I wanted to ask you something about healing. You'd know better than any of us, I imagine."
He lowered his voice, glancing around as if checking for spies hiding behind the bookcases.
"Harry and the lot are staying with us, as you know," he began. "They're all doing pretty well, abet a bit quiet but I expected that. But Harry...I'm a little worried. I overheard him talking to my brother and Hermione. When they escaped from Grimmauld, someone helped him; a Death Eater called Selwynn, the one the Prophet reported had his family killed this week. Thing is, Harry thinks it wasn't really Selwynn at all...that it was someone Polyjuiced as him."
He took a deep breath.
"Hestia, he thinks it was Snape. He's pretty damned sure he saw the potion wear off right as he left them. Ron and Hermione say he's daft about the whole thing, and I admit I'm having a bit of trouble believing it all too. And I was wondering...I mean, obviously they've been imprisoned for a while and who knows what kind of things the Death Eaters tried on them to get them to talk. Do you think that maybe Harry is just imagining this whole thing? I mean, is it possible that, after a kind of trauma, his mind just came up with this? He saw Snape because he's deluded or something?"