Worlds Apart
Worlds Apart is the umbrella term retroactively applied to a pair of Pocket TOS Klingon-centric novels written by John M. Ford and first published in the 1980s. The two novels – which do not form a coherent storyline – were reissued by Pocket Books in  under this banner.

Novels 
 TOS #16: The Final Reflection
 TOS #36: How Much for Just the Planet?

See also 
 The Yesterday Saga – another title retroactively applied by Pocket in 1999.
Novel series