This is a total middle school book, I have two groups that wanted to read it during their literature circle time when they come to the library, so I got some and read it ahead of them so that I could develop questions for them. Anyway, Dad builds a nuclear compound to save his family from nuclear attack. The whole place is amazing. Dad plans for almost everything that they will need to the 15 years of nuclear winter that will follow an attack. The attack happens, they run to the shelter and lock it down, only to find out that one of his twin boys and the grandma are not with them. Six years later, surviving twin Eli realizes that things are just not adding up and making sense. Some of Dad's explaination are not making sense. Is the world really gone?