The Millers: An Australian Crime Mystery (Audrey Lord Book 4) - An Audrey Lord Mystery, #4

The granddaughter of a woman who made your life a misery goes missing, then asks for your help. What do you do? When journalist Audrey Lord is asked by her nemesis Sharon Miller to help find who kidnapped her beloved granddaughter, she is shocked and wary. Sharon drove her out of Bennington two decades earlier and helping her goes against the grain. But a child is missing, and the clock is ticking.
Child abductions were often by a disgruntled family member, but the Millers had enemies. The list of potential suspects was long, wide and went back decades. Even Audrey had a motive. As Audrey finds herself drawn further into Sharon's murky world, she doesn't know who to trust. Is Sharon a grieving grandmother or a leopard that never truly changed her spots? Perfect for readers of Sally Rigby, Robert Galbraith and Anthony Horowitz.