Detective Sgt. (Insp.) Elk

Detective Sgt. (Insp.) Elk is a series of six mystery novels by Edgar Wallace. • The Nine Bears (1910) • The Fellowship of the Frog (1925) • The Joker (1926) - also published as The Colossus • The Twister (1928) • The India-Rubber Men (1929) • White Face (1930)