Pulp fiction's legendary Man of Bronze returns in two of his most engrossing adventures. In "The Spook Legion" (1935), the Man of Bronze and his aide Monk Mayfair battle invisible supercrooks led by a criminal mastermind whose scientific brilliance may surpass Doc's own. Then, in 1938's "The Submarine Mystery," Doc Savage investigates modern-day piracy when a Navy sub is destroyed off of Boston Harbor, and it's only survivor is found to be speaking an obscure 16th-century dialect. These classic pulp thrillers are reproduced with the original color pulp covers by Walter Baumhofer and Emery Clarke, interior illustrations by Paul Orban, and historical articles by pulp historian Will Murray.