This little thriller, published in 2012, is my favourite of Robotham’s. Two teenage girls disappear in England; three years later one of their bodies is found, close to a farmhouse where a couple have been murdered. Why? It takes psychologist Joe O’Loughlin and his built-like-a-brick-shithouse sidekick Ruiz it figure it out. All Robotham’s characters are well drawn and even if O’Loughlin manages to be in exactly the right place at exactly the right time once too often, you forgive him for it because you REALLY want the surviving girl to be found. Turn off the phone and devote an afternoon to this one – it’s worth it.