Valis
Philip K. Dick
VALIS Trilogy (1)
Faded Sun
C. J. Cherryh
09. The Great Airport Mystery
Franklin W. Dixon
Foundation's Edge
Isaac Asimov
Foundation (6)
Dirk Gently's Holistic Detective Agency
Douglas Adams
Dirk Gently (1)
Long Dark Tea-Time of the Soul
Dirk Gently (2)