The Ultimate Hitchhiker's Guide to the Galaxy: Five Novels in One Outrageous Volume

Dirk Gently's Holistic Detective Agency (Dirk Gently Series Book 1)

Douglas Adams

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Cover of Dirk Gently's Holistic Detective Agency (Dirk Gently Series Book 1)

Don't Panic: Douglas Adams & The Hitchhiker's Guide to the Galaxy

Neil Gaiman

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Cover of Don't Panic: Douglas Adams & The Hitchhiker's Guide to the Galaxy

Terry Pratchett Small Gods: A Discworld Novel

Mostly Harmless (Hitchhiker's Guide to the Galaxy)

Douglas Adams

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Cover of Mostly Harmless (Hitchhiker's Guide to the Galaxy)