Amongst the imposters - Margaret Haddix

In a world where transgressors of the Population Law are cruelly and unhesitatingly dealt with, Luke, a third child has spent all of his life in hiding. Enrolling in Hendricks School for Boys under a false identity should be his first taste of freedom, maybe even a chance to help his fellow hidden children. But Hendricks is far from what Luke expects, and he soon realises he doesn't know whom he can trust.Thought-provoking and fast-moving, this wonderful novel is guaranteed to leave readers wanting more from this fabulous writer