The Mischief-Maker By: Edward Phillips Oppenheim

The Monk of Hambleton By: Armstrong Livingston

The Moon Rock By: Arthur J. Rees

The Motor Girls on Crystal Bay or, The Secret of the Red Oar By: Margaret Penrose

The Motor Pirate By: G. Sidney Paternoster

The Moving Picture Boys on the Coast Or, Showing Up the Perils of the Deep By: Victor Appleton

The Mystery of 31 New Inn By: R. Austin Freeman

The Mystery of Orcival By: Emile Gaboriau

The New Tenant By: Edward Phillips Oppenheim

The Old Stone House and Other Stories By: Anna Katharine Green

The Outdoor Girls at Ocean View Or, The Box That Was Found in the Sand By: Laura Lee Hope

The Paternoster Ruby By: Charles Edmonds Walk

The Pirate Shark By: Elliott Whitney

The Profiteers By: Edward Phillips Oppenheim

The Red Triangle Being Some Further Chronicles of Martin Hewitt, Investigator By: Arthur Morrison

The Riddle Ring By: Justin McCarthy

The Rival Campers Ashore The Mystery of the Mill By: Ruel Perley Smith

The Rover Boys in Business Or, The search for the missing bonds By: Edward Stratemeyer

The Rover Boys in New York Or, Saving their father's honor By: Edward Stratemeyer

The Rover Boys in Southern Waters or The Deserted Steam Yacht By: Edward Stratemeyer

The Rover Boys in the Air From College Campus to the Clouds By: Edward Stratemeyer

The Rover Boys on Snowshoe Island or, The Old Lumberman's Treasure Box By: Edward Stratemeyer

The Shape of Fear By: Elia Wilkinson Peattie

The Sheridan Road Mystery By: Paul

The Silver Butterfly By: Wilson Woodrow

The Sins of Séverac Bablon By: Sax Rohmer

The Slave of Silence By: Fred M. White

The Strange Case of Cavendish By: Randall Parrish

The Strange Case of Mortimer Fenley By: Louis Tracy

The Substitute Prisoner By: Max Marcin

The Survivor By: Edward Phillips Oppenheim

The Tempting of Tavernake By: Edward Phillips Oppenheim