Madeline Payne, the Detective's Daughter By: Lawrence L. Lynch

Malcolm Sage, detective By: Herbert George Jenkins

Man of Honor By: George Eggleston

Man Who Fell Through the Earth By: Carolyn Wells

Marie Antoinette Romances, Vol 2: The Mesmerist's Victim By: Alexandre Dumas

Markenmore Mystery By: J. S. Fletcher

Masterpieces of Mystery In Four Volumes Mystic-Humorous Stories By: Joseph Lewis French

Masterpieces of Mystery Riddle Stories By: Joseph Lewis French

Masterpieces of Mystery, Vol. 1 (of 4) Ghost Stories By: Joseph Lewis French

Mayor's Wife By: Anna Katharine Green

Melmoth The Wanderer By: Charles Robert Maturin

Milly Darrell By: M. E. (Mary Elizabeth) Braddon

Miss or Mrs.? By: Wilkie Collins

Money to Burn, An Adventure Story By: Reginald Wright Kauffman

Moon-Face and Other Stories By: Jack London

More Tish By: Mary Roberts Rinehart

Most Extraordinary Trial of William Palmer By: Anonymous

Motor Pirate By: George Sidney Paternoster

Mr. Grex of Monte Carlo By: Edward Phillips Oppenheim

Mrs. Balfame By: Gertrude Atherton

Mrs. Raffles By: John Kendrick Bangs

Mufti By: H. C. (Herman Cyril) McNeile

Murder Point A Tale of Keewatin By: Coningsby Dawson

My Friend The Murderer By: Sir Arthur Conan Doyle

Mystery Girl By: Carolyn Wells

Mystery of the 'Ocean Star' - A Collection of Maritime Sketches By: William Clark Russell

Mystery of the Boule Cabinet By: Burton Egbert Stevenson

Mystery of the Ravenspurs By: Fred M. White

Mystery of the Sycamore By: Carolyn Wells

Nan Sherwood at Palm Beach Or Strange Adventures Among The Orange Groves By: Annie Roe Carr

Nancy Brandon's Mystery By: Lilian C. Garis

Narrative of My Captivity Among the Sioux Indians By: Fanny Kelly