The words are strange, and would sound weird and off to an outsider perhaps. But they and the meaning behind them make Peter smile, thankful all over again for his friend. So while it aches a little, his hands curl around the ones holding his and gave a squeeze.

"Thank you." Peter understands enough to know Sirius is trying. How could someone raised in magic and a pureblood understand the thoughts and opinions of a muggle man who thinks magic is bad?