In 1856, Alan Pinkerton recounts in his memoir how his 30- year-old detective agency changed directions after making two major decisions. He hired Kate, a woman operative, and aligned the agency with the railroads. It expanded into avenues Alan had not dreamed possible.

He and his operatives investigated and stopped attempts on Abraham Lincoln's life, infiltrated a Confederate spy ring, which in turn led to the beginning of the Secret Service. Alan details his participation with the Underground Railroad and his involvement with John Brown. His friendship and admiration of John Brown led to the confrontation Alan had with his wife, which ultimately led to their adversarial relationship; a relationship Alan could not end because of his mixed feelings for the woman he'd loved since she was 14 years old.

Alan recalls his admiration for Kate and the excitement of working with her. Their relationship evolved into a love affair spiced with the adventure of solving crimes together. But previous commitments and tragedy marred their love affair.

Mr. Lerner has created a vivid fictionalized account of Alan Pinkerton in an engrossing tale. He includes Pinkerton's involvement with historical figures from John Brown to famous Confederate spies. He sprinkles in Pinkerton's personal observations of Abraham Lincoln, giving an interesting analysis of the man. In the end, Lerner portrays Alan's ability to live life on his terms, no matter the cost to himself or others.