He doesn't know what werewolves are. What kind of place did he come from where he doesn't know what those are, even just from movies or Halloween costumes? But that's not as important as the second thing he says.

Looking a bit nervous again, she explains quietly, "The only person I've fed from here is someone from back home. Or something like it anyway. I knew her family. But I haven't... from anyone who isn't used to it."