Haddix, Margaret Peterson. 2002. Among the Betrayed.
Among the Betrayed is the third in a seven book science fiction series entitled the Shadow Children. Our narrator this time is Nina, a character first introduced in Among the Impostors. Imprisoned by the population police, Nina fears the worst. As a third child her very existence is reason enough for execution upon her discovery. At first she doesn’t know why they’re still questioning her? Why not kill her and just get it over with? But Nina is given an opportunity to prove herself. Betray three young children by discovering their true identities or face execution along with those children she chooses to protect. Locked in a cave, barely provided with food and devoid of all water except for that that trickles down the cave’s wall...the children seem to be waiting for death. Nina is unsure of herself. As she grows closer to the children--they still won’t open up to her--she doesn’t know what she’ll do. Why are they giving her this test? And is there a way to pass it without anyone dying? Matthias, Percy, and Alia join the cast of shadow children introduced by Haddix in this unforgettably dangerous world.