I am planning to read "The Hitchiker's Guide to the Galaxy" again. Thought I would dip my toes in and start at the beginning with this novella which is a prequel to the main tale. Hadn't read this one so -- yay! Not to give too much away but this story gives another reason for the destruction of Earth. Zany, entertaining, and loads of fun. I miss this universe (and Zaphod) so much!!