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 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)
So Long, and Thanks for All the Fish