Mostly Harmless

It's not just a trilogy any more. In the fifth book of this popular series, Arthur Dent makes the terrible mistake of starting to enjoy life, and immediately all hell breaks loose. In short, it's up to him to save the world from total multi-dimensional obliteration, the Guide from a hostile alien takeover, and the daughter he never knew he had from herself. A tall order, to say the least. And one he's really not up to, thank you very much.

• So Long, and Thanks for All the Fish
• Life, the Universe, and Everything: The Hitchhiker's Guide to the Galaxy, Book 3
• And Another Thing.: The Hitchhiker's Guide to the Galaxy, Book 6
• The Restaurant at the End of the Universe
• The Hitchhiker's Guide to the Galaxy
• The Salmon of Doubt: Hitchhiking the Galaxy One Last Time
• And Another Thing.: Douglas Adams' Hitchhiker's Guide to the Galaxy: Part Six of Three
• The Long Dark Tea-Time of the Soul
• Dirk Gently's Holistic Detective Agency
• The Hitchhiker's Guide to the Galaxy: Hexagonal Phase: And Another Thing.