The Ultimate Hitchhiker's Guide to the Galaxy
Douglas Adams
The Long Dark Tea-Time of the Soul
Dirk Gently (2)
Dirk Gently's Holistic Detective Agency
Dirk Gently (1)
The Hitchhiker's Guide to the Galaxy
Hitchhiker's Guide to the Galaxy (1)
The Restaurant at the End of the Universe
Hitchhiker's Guide to the Galaxy (2)
Life, the Universe and Everything
Hitchhiker's Guide to the Galaxy (3)
So Long, and Thanks for All the Fish
Hitchhiker's Guide to the Galaxy (4)
Mostly Harmless
Hitchhiker's Guide to the Galaxy (5)