Paper Cage by Tom Baragwanath

This prizewinning debut from New Zealand novelist Tom Baragwanath is both a nail-biting thrill-ride and a beautifully written, acutely observed portrait of a community.
How far would you go to keep your family safe?
Lorraine Henry is generally content to keep her head down and get on with her work as a records clerk at the Masterton police station. But when children start going missing in her small town, Lo can't help but pay attention. After all, she has Bradley, her young nephew, to worry about, and the cops don't seem to be putting much effort into finding the kids. And then the unthinkable happens: Bradley disappears. Distraught but determined, Lorraine vows to bring him home no matter what. And, together with a detective from Wellington, she embarks on a dangerous mission, one that will illuminate all the good and all the bad in Masterton.