The Dark Tower - Lewis novel - was created in 1977.
Dark Tower - game - was created in 1981.
Laughter in the Dark - novel - was created in 1932.
Dark Horse - novel - was created in 2008.
Dark Magic - novel - was created in 2000.
The Dark River - novel - was created in 2007.
Dark Universe - novel - was created in 1961.
Dark Places - novel - was created on 2009-05-05.
Dark Sun - novel - was created on 2008-03-06.
Man in the Dark - novel - was created on 2008-08-19.
The Dark Eyes of London - novel - was created in 1924.
In the Dark of the Night - novel - was created on 2006-07-18.
Dark Journey - novel - was created on 2002-02-01.