Outback

When two young German backpackers vanish from the area, DS Lucas Walker 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 of the outback for the coast? Working in the organised crime unit has opened Walker's eyes to the growing drug trade in Australia's remote interior - and he becomes convinced there is more at play. For fans of Jane Harper and Chris Whitaker.