Having read a number of Catherine Jinks books for younger and YA readers - I thought I would give this a go. I would suggest this is aimed at an adult audience - the main character 'Rob' is a tough and somewhat damaged, middle-aged woman - responsible for caretaking a National Parks island, and managing the impacts of its visitors and the 'boot camps' run for struggling youth.
She is force to face her past demons when she recognizes a participant of one such camp. Her unease turns to fear as the isolated camp setting leaves little room for escape.

Jinks interweaves chapters revealing the past along with the current action - building the sense of panic. There is strong language and a fair amount of violence depicted - not quite my usual reading, but still gave three stars as I did find myself 'hooked' to the end (with fingers crossed for a satisfactory resolution). If you like 'Hand that rocks the cradle' or 'Disturbia' style thrillers this could be for you.

An intense dramatic read that will hold you till the very end!
The book started off a bit slow for me but let me tell it picks up pace not long after the second chapter!
Catherine Jinks' writing talents proved exemplary in this novel. She paints a very vivid picture of the story being told! I really enjoyed it!