In the Among the Hidden, the first book in the Shadow Children series by Margaret Peterson Haddix, third children have been outlawed as a means of population control following a severe drought and the resulting famine. Luke, an illegal third child, has a “relatively” normal childhood growing up in the remote countryside until suburbia brings a housing development to his back door. Forced to stay inside all day away from windows, Luke grows increasingly restless until he eventually determines that a new neighbor also appears to have a hidden third child.
What this discovery means to Luke and his ultimate safety is the subject of the series. Geared toward a younger audience, these books are shorter, with less graphically detailed violence than your standard Dystopian read. While entertaining for adults, the books are perfectly geared toward elementary school readers. I highly recommend the series to third children everywhere.