In a burst of panic about a nuclear attack, nine-year-old Eli, his sisters, and his parents move into an underground bunker built by Eli’s billionaire father. It’s an enormous complex, with rooms similar to those in the family’s Seattle mansion. Only his grandmother and twin brother don’t make it in. The first six years of the planned 15 have been fairly routine, but now some food has spoiled, and certain things just don’t seem right, or even possible. Eli is starting to have doubts about his father’s motives, explanations, and sanity. Readers might find the first third of the novel to be slow as a lot of time is spent developing Eli’s character as a spoiled, self-centered child. There is considerable foreshadowing, and astute readers will likely figure out the ending. As the years pass, Eli is full of teen angst and anger that develops into a realization of what he must do in order to help his family survive.