| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Grell Mystery | Froest, Frank | en | | | | | 2007-07-30 |
| The Sheridan Road Mystery | | en | | | | | 2003-02-01 |
| The Rosicrucian Mysteries
An Elementary Exposition of Their Secret Teachings | Heindel, Max, 1865-1919 | en | | | | | 2009-08-30 |
| The Mysteries of Paris, Volume 1 of 6 | Sue, Eugène, 1804-1857 | en | | | | | 2010-09-22 |
| The Mysteries of Paris, Volume 2 of 6 | Sue, Eugène, 1804-1857 | en | | | | | 2010-09-22 |
| The Mysterious Affair at Styles | Christie, Agatha, 1890-1976 | en | | | | Detective and mystery stories; Private investigators -- England -- Fiction; Belgians -- England -- Fiction; Poirot, Hercule (Fictitious character) -- Fiction | 1997-03-01 |
| The Czar's Spy
The Mystery of a Silent Love | Le Queux, William, 1864-1927 | en | | | | | 2003-11-01 |
| The Pointing Man
A Burmese Mystery | Douie, Marjorie | en | | | | | 2004-11-15 |
| The Mansion of Mystery
Being a Certain Case of Importance, Taken from the Note-book of Adam Adams, Investigator and Detective | Steele, Chester K. | en | | | | | 2005-07-04 |
| Tom Slade on Mystery Trail | Fitzhugh, Percy Keese, 1876-1950 | en | | | Owen, R. Emmett (Robert Emmett), 1878-1957 [Illustrator] | | 2006-04-15 |
| The Ghost Ship
A Mystery of the Sea | Hutcheson, John C. (John Conroy) | en | | | Austin, Henry [Illustrator] | | 2007-04-15 |
| The Outdoor Chums at Cabin Point
or The Golden Cup Mystery | Allen, Quincy | en | | | | | 2006-11-09 |
| The accomplisht cook
or, The art & mystery of cookery | May, Robert, 1588- | en | | | | | 2007-09-28 |
| The Rover Boys Under Canvas
or The Mystery of the Wrecked Submarine | Stratemeyer, Edward, 1862-1930 | en | | | | Military education -- Fiction; Schools -- Fiction; World War, 1914-1918 -- Fiction; Submarines (Ships) -- Fiction | 2007-11-01 |
| Godfrey Morgan
A Californian Mystery | Verne, Jules, 1828-1905 | en | | | | | 2007-11-15 |
| Masterpieces of Mystery
Riddle Stories | | en | | The Mysterious Card
The Great Valdez Sapphire
The Oblong Box
The Birth Mark
A Terribly Strange Bed
The Torture by Hope
The Box with the Iron Clamps
My Fascinating Friend
The Lost Room. | French, Joseph Lewis, 1858-1936 [Editor] | Detective and mystery stories; Ghost stories; Short stories | 2009-08-15 |
| A Frontier Mystery | Mitford, Bertram, 1855-1914 | en | | | | | 2010-05-28 |
| The Daffodil Mystery | Wallace, Edgar, 1875-1932 | en | | | | | 2007-03-26 |
| The Filigree Ball
Being a full and true account of the solution of the mystery concerning the Jeffrey-Moore affair | Green, Anna Katharine, 1846-1935 | en | | | | | 2000-10-01 |
| The Master Mystery | | en | | | | | 2005-07-01 |
| The Albert Gate Mystery
Being Further Adventures of Reginald Brett, Barrister Detective | Tracy, Louis, 1863-1928 | en | | | | | 2007-10-22 |
| The Scarlet Lake Mystery | Goodwin, Harold L. (Harold Leland), 1914-1990 | en | | | | | 2010-03-10 |
| An Antarctic Mystery | Verne, Jules, 1828-1905 | en | | | Hoey, Frances Cashel, 1830-1908 [Translator] | | 2003-11-01 |
| The Young Engineers on the Gulf
Or, The Dread Mystery of the Million Dollar Breakwater | Hancock, H. Irving (Harrie Irving), 1868-1922 | en | | | | | 2004-12-16 |
| Boy Scouts Mysterious Signal
or Perils of the Black Bear Patrol | Ralphson, G. Harvey (George Harvey), 1879-1940 | en | | | | World War, 1914-1918 -- Juvenile fiction; Boy Scouts of America -- Juvenile fiction | 2007-10-12 |