July, 1868. On receiving a commission from Matthew's cousin Luther to look into the suspicious death of Lafayette Baker, Head of the US National Detective Police, private investigators Matthew Grand and his business partner James Batchelor leave London for Washington DC. They find a country still scarred by the bitter legacy of the Civil War and even in death Lafayette Baker remains one of the most hated men north and south of the Potomac. The newly-created...

1875. After a call for help from an old acquaintance, private enquiry agents Grand and Batchelor arrive at Fort Abraham Lincoln, deep in Dakota territory, and discover it to be a powder keg of suspicion and closely-guarded secrets. When a body is discovered during a scouting patrol, some of those secrets rise uncomfortably close to the surface.