I don't know; one of the things I always liked about Sherlock Holmes is that the universe is very firmly rational, and things like vampires, magic, and glowing ghostly hounds can all be explained in rational, scientific ways, and divine Providence may exist, but it doesn't violate the laws of rationality or science. (Just, on occasion, probability.) I'd probably be annoyed if myths and magic suddenly became obviously true.

(On the other hand, it annoyed the hell out of me that they gave a rational scientific explanation for all of the stuff going on in Sarah Waters' Affinity -- there, I wanted the possibility of magic.)