He's awfully lucky Mr. Cat is there, otherwise he'd be talking to himself and that would just be silly. *grin*
Enjoying Sebastian's wanderings - I like him and his ability to bounce back to his normal self despite the situation (though I don't doubt that he'll be considerably less congenial when Mr. Beast makes his next appearance).
Also, yay world building! That is one creepy looking chapel (and so well drawn!).