"Are 'ee from space?" she asks eagerly. "I'm sorry, tis only just that all other people I've met from such times have lived in space."

And space is fascinating to Demelza, the sort of world she can only ever imagine, having absolutely no context for what people have described to her. The books in the library help, but there's really only so much one can learn in that situation without having been there themselves.

"I'd so love to see it," she says. "But I know it ent possible."