The Guardian: Derailers (Library Binding) (ISBN-13: 9781432870744)

Duncan Curry was a brilliant thief. During his years fighting for the Confederacy, he honed his skills for the greater good. But now the Union is whole, and Duncan Curry needs a job. When a man from his past approaches him asking if he will use his unique skills to guard the railroads, Curry cannot refuse. It is the ultimate form of justice, as the one-time train robber now protects the rails that he once preyed upon. He is the private law in a time when every train is a big, fat target for opportunists with a gun. Now Curry must learn to dodge bullets and find a way to keep his not-so-savory past from catching up with him.