| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Mysterious Rider | Grey, Zane, 1872-1939 | en | | | | | 2004-11-03 |
| The Mystery of the Hasty Arrow | Green, Anna Katharine, 1846-1935 | en | | | | | 2006-02-12 |
| A Master of Mysteries | | en | | The mystery of the circular chamber -- The warder of the door -- The mystery of the Felwyn Tunnel -- The Eight-Mile Lock -- How Siva spoke -- To prove an alibi. | Walton, J. Ambrose [Illustrator] | | 2007-08-08 |
| Tales of Terror and Mystery | Doyle, Arthur Conan, Sir, 1859-1930 | en | | The horror of the heights -- The leather funnel -- The new catacomb -- The case of Lady Sannox -- The terror of Blue John Gap -- The Brazilian cat -- The lost special -- The beetle-hunter -- The man with the watches -- The japanned box -- The black doctor -- The Jew’s breastplate -- The nightmare room. | | Horror tales, English; Detective and mystery stories, English | 1996-05-01 |
| The Mystery of a Hansom Cab | Hume, Fergus, 1859-1932 | en | | | | | 2003-07-01 |
| The Mysteries of Free Masonry
Containing All the Degrees of the Order Conferred in a Master's Lodge | Morgan, William, 1774- | en | | | | | 2006-04-09 |
| Esoteric Christianity, or The Lesser Mysteries | Besant, Annie Wood, 1847-1933 | en | | | | Theosophy; Mysticism; Christianity -- Miscellanea | 2008-10-16 |
| Submarine Warfare of To-day
How the Submarine Menace was Met and Vanquished, With
Descriptions of the Inventions and Devices Used, Fast
Boats, Mystery Ships | Domville-Fife, Charles W. (Charles William), 1886- | en | | | | Submarine warfare; World War, 1914-1918 -- Naval operations -- Submarine | 2009-08-13 |
| The Blue Ghost Mystery | Goodwin, Harold L. (Harold Leland), 1914-1990 | en | | | | | 2010-03-10 |
| The Wonder Island Boys: The Mysteries of the Caverns | Finlay, Roger Thompson, 1860- | en | | | | Castaways -- Juvenile fiction; Islands -- Juvenile fiction | 2007-02-17 |
| Boy Scouts in the North Sea
The Mystery of a Sub | Ralphson, G. Harvey (George Harvey), 1879-1940 | en | | | | Boy Scouts of America -- Juvenile fiction; World War, 1914-1918 -- Juvenile fiction; Submarines (Ships) -- Juvenile fiction | 2008-06-15 |
| The Mystery of the Boule Cabinet
A Detective Story | Stevenson, Burton Egbert, 1872-1962 | en | | | | | 2003-11-01 |
| The Mystery of Monastery Farm | Naylor, H. R. | en | | | | | 2004-04-01 |
| Historical Mysteries | Lang, Andrew, 1844-1912 | en | | | | | 2006-06-25 |
| The Rover Boys on a Hunt
or The Mysterious House in the Woods | Stratemeyer, Edward, 1862-1930 | en | | | | Hunting stories; World War, 1914-1918 -- Fiction | 2007-07-07 |
| Fantazius Mallare
A Mysterious Oath | Hecht, Ben, 1894-1964 | en | | | Smith, Wallace, 1888-1937 [Illustrator] | | 2008-11-14 |
| Kastle Krags
A Story of Mystery | Martin, Absalom | en | | | | | 2010-08-29 |
| The Lock and Key Library
Classic Mystery and Detective Stories: Modern English | | en | | Rudyard Kipling
My Own True Ghost Story
The Sending of Dana Da
In the House of Suddhoo
His Wedded Wife
A. Conan Doyle
A Case of Identity
A Scandal in Bohemia
The Red-Headed League
Egerton Castle
The Baron's Quarry
Stanley J. Weyman
The Fowl in the Pot
Robert Louis Stevenson
The Pavilion on the Links
Wilkie Collins
The Dream Woman
Anonymous
The Lost Duchess
The Minor Canon
The Pipe
The Puzzle
The Great Valdez Sapphire | | Short stories; Fiction; Detective and mystery stories, English | 2005-06-04 |
| The Mystery of Metropolisville | Eggleston, Edward, 1837-1902 | en | | | | | 2004-04-01 |
| Mysteries of Bee-keeping Explained | Quinby, M. (Moses), 1810-1875 | en | | | | | 2008-04-26 |
| The Loudwater Mystery | Jepson, Edgar, 1863-1938 | en | | | | | 2006-02-01 |
| The Mysteries of Paris, Volume 4 of 6 | Sue, Eugène, 1804-1857 | en | | | | | 2010-09-22 |
| The Mystery of a Turkish Bath | Rita | en | | | | Dime novels; Juvenile fiction | 2008-05-31 |
| The Four Pools Mystery | Webster, Jean, 1876-1916 | en | | | | | 2007-04-30 |
| The Land of Mystery | Ellis, Edward Sylvester, 1840-1916 | en | | | | | 2005-10-10 |