Instruct: Classify Amazon reviews into positive or negative sentiment
Query: sub-par storytelling for once

It is hard to believe that this book comes from the same author whose work has always been characterized by superbly constructed storylines and very witty dialogue. This story, unfortunately, has neither. There are two loosely connected storylines, one centered around Rincewind and containing all the wit and wisdom of a draft script for Crocodile Dundee part IV; the other one starring the wizards of Unseen University that will leave the reader as confused about the point of it all as it does the principal characters.Mr. Pratchett is to be commended for wanting to put out a new Discworld novel each year. But if the spirit for once doesn't move him, we'll gladly wait a little longer.