Fifty Fifty

Harriet Blue 02
Sam Blue stands accused of the brutal murders of three young students. Only one person believes he is innocent: his sister, Detective Harriet Blue. And she's determined to prove it.
Except she's now been banished to the outback town of Last Chance Valley (population 75), where a diary found on the roadside outlines
a shocking plan - the massacre of the entire town. And the first death, shortly after Harry's arrival, suggests the clock is already ticking.