This is the fourth book in Margaret Peterson Haddix`s Shadow Children series which follows the story of Luke Garner--the third child born to a family living under the control of a futuristic government that allows only two children per family. Here Luke is still living under the assumed identity of Lee Grant, a ruse that allows him to come out of hiding and attend boarding school. However, Luke`s life is complicated when Lee`s younger brother arrives at his school.