Speed of Darkness was created on 2011-05-31.
The Speed of Darkness - EP - was created in 2002.
Darkness is only the absence of light. The 'speed of darkness', or the speed at which darkness 'propagates' (even though only the absence of photons is propagating) is therefor equal to the speed of light.
Darkness - short stories - was created in 1985.
After Darkness was created in 1985.
She Is the Darkness was created in 1997-09.
Of Darkness... was created in 1991-02.
Darkness Descends was created on 1986-11-17.
Jaws of Darkness was created in 2003.
Carts of Darkness was created in 2008.
Blooms of Darkness was created in 2006.
Touching Darkness was created in 2005.
Power in the Darkness was created in 1978.