I honestly don't know how much of my enjoyment of this book is nostalgia for the Discworld MUD and how much is actual enjoyment. As much of the book deals with the UU and the orders it's hard not to wistfuly recall the hours spent working my way through the library and making trips down to the Drum.
But the book... the pacing is a little wonky, but the jokes are there and unlike TCOM it has a firm plot. Rincewind's sacrifice and character arc may not entirely be earned, but I remember the first time I read it, this was quite sad.
Mass Market Paperback, 288 pages
Published Feb. 1, 2001 by HarperTorch.