Diggs Nolen's name was the byword for crime in 1920s Memphis. As a child, he dreamed of becoming a swashbuckling outlaw. He turned his back on a promising career, his family and consorted with the worst elements of society. Under the tutelage of train robber Frank Holloway, Nolen became a notorious con artist. Later, he and his gun-slinging wife built an empire out of selling narcotics and trafficking stolen goods. Law enforcement caught Nolen, but they could not hold him. Nolen escaped from Leavenworth Prison, led the largest jailbreak in Memphis history and confounded prosecutors with legal wranglings. Author Patrick O'Daniel details Nolen's quixotic quest for criminal fame that earned him the title King of the Memphis Underworld.