道格拉斯·亞當斯

At the centre of the galaxy, an unknown civilization is preparing for an event of epic proportions, the launch of the most technologically advanced spaceship ever built - the Starship Titanic. The ship that cannot possibly go wrong.

Mostly Harmless is a novel by Douglas Adams and the fifth book in the Hitchhiker's Guide to the Galaxy series. It is described on the cover of the first editions as "The fifth book in the increasingly inaccurately named Hitchhikers Trilogy". It was the last Hitchhiker's book written by Adams.