The hitchhiker's guide to the galaxy
Douglas Adams
The Hitchhiker's Guide to the Galaxy (1)
I Shall Wear Midnight
Terry Pratchett
Discworld: Tiffany Aching (4)
The Twilight Watch
Sergei Lukyanenko
The Night Watch Tetralogy (3)
First degree
David Rosenfelt
Andy Carpenter (2)
Time's Eye
Arthur C. Clarke & Stephen Baxter