Patricia Wolf

DS Lucas Walker is off duty. His young half-sister Grace is visiting from Boston, and he's supposed to be spending time with her at his home in Caloodie in outback Queensland. But instead, they've driven 400 kilometres west to the tiny mining town of Kanpara to pick up Walker's cousin Blair, who's been digging for boulder opals and is suddenly...

Two missing backpackers. One vast outback. DS Lucas Walker is on leave in his hometown, Caloodie, taking care of his dying grandmother. When two young German backpackers, Berndt and Rita, vanish from the area, he finds himself unofficially on the case. But why all the interest from the Federal Police when they have probably just ditched the heat and dust...

On a stunningly beautiful stretch of coastline, a young mother is brutally murdered. The only witness to the crime, her daughter Gabby, is left in a coma, fighting for her life... DS Lucas Walker has just arrived in Surfers Paradise for some much-needed recovery after injuries sustained in his last investigation. But he is soon pulled into the dark twists...

DS Lucas Walker is on assignment for the Australian Federal Police, and it couldn't be more personal. This is his last chance to take down Stefan Markovich—leader of the Vandals outlaw motorcycle gang—the man who has managed to evade justice ever since Walker uncovered his drug operation in Australia's remote interior. Having tracked Markovich to Berlin, Walker heads to Germany...

Following the dramatic fallout from his last case, DS Lucas Walker is getting to grips with his new role in the small outback town of Katima when the body of a young man is found hanging in the park. What at first looks like a tragic suicide soon has Walker on alert, and when a connection with another death emerges,...