Luke is a "shadow child" -- a third son in a society that allows only two children per family. He has learned to hide, but when a housing development replaces the woods next to his family's farm, he can no longer go outside. He spends every day alone in his room . . . until he sees a girl's face in the window of a house where he knows two other children live. Meeting Jen opens a new world to Luke. Jen is connected via the Internet with other shadow children, and is planning a rally to enable thirds to take their place in society. Can a twelve-year-old successfully challenge a totalitarian regime?