Echoes from the Dead by Johan Theorin

Julia Davidsson has been living her life in a fog ever since her young son disappeared twenty years ago, while they were staying with her parents on the Swedish isle of Oland. When Julia's estranged father, Gerlof, calls and tells her that he's received one of Jens' sandals and that he needs to see her, she agrees to go. Gerlof is, at times, cagey about what he thinks he knows about Jens' disappearance (and after all this time, death), but he is slowly tenacious in finding out what happened to him. Julia, staying on the family's land in Stenvik, is doing her own investigating. Gerlof's and Julia's stories are interpersed with that of a local man, Nils Kant, who supposedly died years before Jens disappeared. Nils grew up in the area and was a violently impulsive man. How is his story connected with that of the Davidsson family? Echoes from the Dead is a leisurely-paced mystery with rich characters and a great sense of place. People who like meatier mysteries, especially Scandavian and British ones, will enjoy this.