Sometimes it's a fine line between what I want as an author and what I believe people want to read. I try and let the book lead me as I think it seems more natural and less forced that way. There is a natural direction for a story but the characters also have their own take on it. The author is like a director of a film. Try to see it from all angles and decide on the best one.
My third book is under way and I'm hearing voices already. Lol.