St. Louis in 1880 is full of ghosts, and Jacob Tracy can see them all. Ever since he nearly died on the battlefield at Antietam, Trace has been haunted by the country's restless dead. The curse cost him his family, his calling to the church, and damn near his sanity. He stays out of ghost-populated areas as much as possible these days, guiding wagon trains West from St. Louis, with his pragmatic and skeptical partner, Boz. During the spring work lull, Trace gets an unusual job offer. Miss Fairweather, a wealthy English bluestocking, needs someone to retrieve a dead friend's legacy from a nearby town, and she specifically wants Trace to do it. However, the errand proves to be far more sinister than advertised.