This is one of those books that while you're reading it, you're not obsessed with it. However, once you finish it-- it's stuck in your mind like a burr. It's a really interesting idea, and has a terrifyingly realistic conclusion. It's great for people interested in apocalypses or natural disasters, with the book written from a child's point of view. It's a book that weighs down your heart and makes you reflect on your own actions and choices. While the narrator is eleven, it's definitely meant for an older audience.