I didn't know quite what to expect going into this book, but I was quickly drawn into Mile's life. The format, starting with a countdown of x days before, lets you know something big is coming, but not what. Without giving anything away, the closer you get to The Day, the more you can sense just how important an event it is going to be. The follow up, when we begin counting x days after, is intense in a different sort of way. Overall, this was a much more emotional book than I was expecting.