Most writers I know move back and forth between the rational and the intuitive, though there are some who approach writing very rationally, and others who claim not to think their work through.

The challenges for the writer included deciding which secrets were most important, how many secrets revealed were too many, which characters should know which information when, and how the revelations would impact the rest of the family. All of those questions eventually lead back to one: What's at the heart of this book? Where does it want to focus, or toward what does it want to lead us?

You can learn all sorts of rules and techniques of writing and still not be able to assemble something beautiful or enchanting.

Most writers I know move back and forth between the rational and the intuitive, though there are some who approach writing very rationally, and others who claim not to think their work through.

The key of writing fiction isn't just to remove something that the reader or listener can easily imagine. It's not a matter of being coy, or withholding information. It's allowing for multiple possibilities, recognizing the complexity of human behavior, and making the world of a piece of fiction as marvelously confounding as the world we live in.

Actually solving the puzzles in the book isn't going to improve anyone's writing, but "trying to solve the puzzle" is one way to think about what a lot of us - writers and other artists - do every day. Step one is to recognize the problem, step two is deciding what constraints you want to impose or respect, and step three is finding a pleasing/surprising/exciting solution.