Books like The Shadow Children: Among the Hidden; Among the Impostors

In a future where the Population Police enforce the law limiting a family to only two children, Luke, an illegal third child, has lived all his twelve years in isolation and fear on his family's farm. In Among the Hidden, Luke discovers the existence of another shadow child, and his world is turned upside down. How much is Luke willing to risk for the chance of freedom? In Among the Impostors, Luke has the chance to come out of hiding at last. Under a fake identity, he is enrolled in the Hendricks School, where he discovers that there is a lot going on under the surface. Luke doesn't know whom he can trust, where the truth will lead him -- or what price he'll have to pay for the answers he seeks.