The Late Lord Thorpe — Peter Grainger

This is DC Smith's third investigation with the Diver and Diver Associates agency. They have been asked by a member of Norfolk's aristocracy to look into the tragic death of her younger brother, Freddie, the late Lord Thorpe of the title. The inquest verdict was of misadventure, but it isn't long before Smith begins to suspect there has been a serious miscarriage of justice.