Mostly Harmless by Douglas Adams

"Douglas Adams is a terrific satirist.... He is anything but harmless." -The Washington Post Book World
It's easy to get disheartened when your planet has been blown up, the woman you love has vanished in a misunderstanding about space/time, the spaceship you are on crashes on a remote and Bob-fearing planet, and all you have to fall back on is a few simple sandwich- making skills. However, instead of being disheartened, Arthur Dent makes the terrible mistake of starting to enjoy life a bit and, immediately, all hell breaks loose.
Hell takes a number of forms: there is the usual Ford Prefect form of hell, fresh hell in the form of an all-new version of The Hitchhiker's Guide to the Galaxy, and a totally unexpected hell in the form of a teenage girl who startles Arthur Dent by being his daughter when he didn't even know he had one.
Can Arthur save the Earth from total multidimensional obliteration? Can he save the Guide from a hostile alien takeover? Can he save his daughter, Random, from herself?
Of course not. He never works out what is going on, exactly. Will you?
Mostly Harmless: The Hitchhiker's Guide to the Galaxy Part Five: The book that gives a whole new meaning to the word "trilogy."

:) 

Condition: Good.