Mostly Harmless - Hardback
The Fifth book in the increasingly inaccurately named Hitch Hiker's guide to the Galaxy trilogy
'Well I think we have sorted all that out now. If you'd like to know. I can tell you that in your universe you move freely in three dimensions that you call space. You move in a straight line in a fourth, which you call time, and stay rooted in place in a fifth, which is the first fundamental of probability. After that it gets a bit complicated, and there's all sorts of stuff going on in dimensions 13 to 22 that you really wouldn't want to know about. All you really need to know for the moment is that the universe is a lot more complicated than you might think'
Quality rated as very good - some signs of wear