Books about Mystery fiction (sorted alphabetically)
- Moonstone Wilkie Collins
- mort vivant (French) Robert Louis Stevenson and Lloyd Osbourne
- Motor Girls on Cedar Lake; Or, the Hermit of Fern Island Margaret Penrose
- Mrs. Balfame: A Novel Gertrude Franklin Horn Atherton
- Mysterious Key and What It Opened Louisa May Alcott
- Mysterious Mr. Miller William Le Queux
- Mysterious Three William Le Queux
- Mystery Boys and Captain Kidd's Message Van Powell
- Mystery of Arnold Hall Helen M. Persons
- Mystery of Carlitos Helen Randolph
- mystery of Central Park : A novel Nellie Bly
- Mystery of Cleverly: A Story for Boys George Barton
- mystery of Cloomber Arthur Conan Doyle
- Mystery of Edwin Drood Charles Dickens
- Mystery of Suicide Place Mrs. Alex. McVeigh Miller
- Mystery of the Ambush in India Andy Adams
- Mystery of the Caribbean Pearls Andy Adams
- Mystery of the Chinese Ring Andy Adams
- Mystery of the Deserted Village Elbert M. Hoppenstedt
- Mystery of the Locks E. W. Howe
- mystery of the Sea-Lark Ralph Henry Barbour and H. P. Holt
- Naisen haamu: Mysterio neljässä kertomuksessa (Finnish) Wilkie Collins
- Nancy Brandon Lilian Garis
- Oakdale Affair Edgar Rice Burroughs
- ocean wireless boys of the iceberg patrol John Henry Goldfrap