Private detectives Grand & Batchelor embark for the Wild West - and headlong into a baffling murder investigation in this gripping Victorian mystery.

March, 1875. Although he has never had much time for George Custer, hero of the American Civil War and Commander of the 7th Cavalry, Matthew Grand feels duty bound to respond to a call for help from his West Point contemporary. Arriving at Fort Abraham Lincoln, deep in Dakota territory, private enquiry agents Grand and Batchelor discover the fort to be a powder keg of rumour and suspicion, petty rivalries, resentments - and closely-guarded secrets.

When a body is discovered during a routine scouting patrol, some of those secrets rise uncomfortably close to the surface. Are the Lakota Sioux responsible? Or does the killer lie closer to home? Could it have been a case of mistaken identity - and was Custer himself the real target? The General has made many enemies - but does someone have a good enough reason to kill him?