When a comet is set to hit the Earth, Denise, her mother, and sister Iris, are set for a temporary shelter. As the time nears, Iris is no where to be found and her drug addict mother is in no shape to make way anywhere. When circumstances change, Denise finds herself near a generation ship that has not left the Earth yet due to technical difficulty. Problem is that everyone has to have a skill to be on that ship. Denise has autism and feels that she cannot be of any help to anyone. Denise has to prove herself, find Iris, and help her mother. An overwhelming fact for a normal girl but with autism, Denise does not feel she can accomplish her goal and live into the future. A well-written book that portrays Denise is a very real manner. Lots of events happening and you want to find out what happens. Does she get to stay or have to go?