I must be a very gullible reader as I didn't realise the "secret" behind one of the narrative voices and, therefore, did have to read it again - immediately! I didn't mind at all, as I think it is a brilliant read and a fascinating idea for a novel, although a friend of mine disliked it; he doesn't like writers who "play tricks on him"! Quite a departure, I thought, for Joanne Harris, but successful.
Finished reading "Marley and Me" by John Grogan in bed last night - wept myself to sleep!