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