"Spade and Archer" is a gritty mystery novel that focuses on the Private Detective Sam Spade. A prequel to Dashiell Hammett's "The Maltese Falcon," the novel follows Spade as he sets up his own agency in San Francisco in 1921. Spade brings on his partner in crime Archer. From booze runners to murderers the book follows Spade through his early years. Larry Mantle talks to author Joe Gores about the noir behind his novel.