I loved this book. I feel that my own style of writing is similar to Sarah's, though we organize differently. It is a little confusing at first, with the jumps back and forth between "before" and "now," but it builds the tension wonderfully. (And no, the whole book isn't like that. The "flashbacks" stop around the middle. Though then there's actual flashbacks as they read a diary written before they were born.) There are good twists. The characters are well thought out.