Luke is the youngest of three siblings in a world where it is illegal to have more than two children. As he grows older and the threat to his safety becomes more immediate, his family hides him away more and more, until a life-changing event causes him to really examine his purpose. 
 How had I not heard of this series? I was reminded somewhat of The Giver, in that the writing makes the story accessible to younger readers, but the theme is surprisingly mature. Luke is young and sheltered, but quite insightful about his situation (view spoiler)[ (If I kill one of my brothers, can I be a public child?) (hide spoiler)] and the world in general (view spoiler)[ (Who am I to question such an official-looking book?) (hide spoiler)]. He is understandably fearful, which made me fret along with him when danger loomed, and cheer for him all the more when he bravely faced it. 
 I have seen varying reviews of the later books in the series, so am curious to see where this story goes.