Life, the Universe and Everything by Douglas Adams
The unhappy inhabitants of planet Krikkit are sick of looking at the night sky above their heads - so they plan to destroy it. The universe, that is. Now only five individuals stand between the killer robots of Krikkit and their goal of total annihilation. They are Arthur Dent, a mild-mannered space and time traveler who tries to learn how to fly by throwing himself at the ground and missing; Ford Prefect, his best friend, who decides to go insane to see if he likes it; Slartibartfast, the indomitable vice president of the Campaign for Real Time, who travels in a ship powered by irrational behavior; Zaphod Beeblebrox, the two-headed, three-armed ex-president of the galazy; and Trillian, the sexy space cadet who is torn between a persistent Thunder God and a very depressed Beeblebrox. How will it all end? Will it end? Only this stalwart crew knows as they try to avert "universal" Armageddon and save life as we know it - and don't know it!