** spoiler alert ** In this fourth installment of the Hitchhiker's Guide to the Galaxy, I found out what it was like to make an entire book about giving the protagonist what they really want. Up to this point in the series, Arthur has wanted nothing more than to return to his home planet in his own time and live in his own house. However, until this book the idea seemed absurd since the earth had in the first book been destroyed by a disconcerting race of aliens known as Vogons. Suddenly, Arthur finds his planet and his house restored. As a bonus, he finds a woman with whom he falls deeply in love and who falls deeply in love with him. Despite all of this (or perhaps because of it) Adams still manages to compose a tight plot centered on Arthur's newest desire: finding out why everything is going right him for once. The author proves his insight into the human psyche by portraying the idea that, even when we think we're fulfilled, humans will always want something more.