Troubled Blood (A Cormoran Strike Novel Book 5)

In the fifth Cormoran Strike novel, Private Detective Strike is approached while visiting Cornwall by a woman seeking help to find her mother, Margot Bamborough, who disappeared under mysterious circumstances in 1974. Strike has never investigated a cold case before, particularly one forty years old, but decides to take it on despite the low likelihood of success. He and his partner Robin Ellacott add the case to their existing workload. As they investigate Margot's disappearance, Strike and Robin encounter a complex case involving tarot cards, a psychopathic serial killer, and witnesses of questionable reliability. Meanwhile, Robin manages a difficult divorce and unwanted attention from men, while also contending with her own feelings about Strike. Their investigation reveals that even decades-old cases can pose serious dangers.