When most people are faced with a talking book, their first instinct is suspicion, and with that comes the natural line of thought involving reasonable explanations as to how this could be happening. "Magic" isn't very high on that list.
[Looks over again.] I imagine your world has such phenomena in it, that it would be easier to accept a mysterious force... Someone form my world, obviously, be less inclined to accept or understand that logic is essentially useless here.