Harriet Blue, the most single-minded detective since Lindsay Boxer, won't rest until she stops a savage killer targeting female university students. But new clues point to a more chilling predator than she ever could have imagined.

"Sam Blue stands accused of the brutal murders of three young students, their bodies dumped near the Georges River. Only one person believes he is innocent: his sister, Detective Harriet Blue. And she's determined to prove it. But Harry's outburst at her brother's trial earns her a reassignment -- to the Outback. With no choice but to leave Sam's case alone, she relocates to Last Chance Valley, population 75, where a diary found on the roadside outlines...

Detective Harriet Blue is a very good cop . . . gone very bad. In the space of a week, she has committed theft and fraud, resisted arrest, assaulted a police officer, and is considered a dangerous fugitive from the law. It's all because of one man, Regan Banks. He viciously killed the only person in the world who matters to Harriet-and he plans to kill her next. As she recklessly speeds toward the dark side-and finally crosses it-Harriet won't stop...