A Civil War-era historical novel featuring the first female agents in the Pinkerton National Police Agency, who work to foil an assassination attempt on President Lincoln's life. The year is 1861, the eve of Abraham Lincoln's inauguration. For Kate Warn, the first female private detective in American history, the only assignment tougher than exposing a conspiracy to assassinate the new president is training her new mentee, Hattie MacLaughlin,...