[...uh what? Does Mickey mean there's no humans, or that there are no communicative humans and therefore, they occupy the positions of animals in Mickey's world? How utterly bizarre. Though if that were the case, this newcomer isn't treating Ciel like an oddity.
And now he's imaging a world full of large mice, with a gigantic behemoth of a cat as the boogie monster and how Sebastian would just love such a beast, and immediately shuts that thought down in its track.
No, thanks.]
No humans at all then. And the citizens, they're all mice? Or do you call yourselves something else? [He gestures at the seat opposite, inviting Mickey to join him. Sorry, Mickey, he's going to have to twenty question you.]