First of all, this book is identical with The Wizards and the Warriors, which has its own entry. What stands out about this book is that it does not follow the expected flow of a normal narrative. There are many characters and the importance of any particular character waxes and wanes as the story moves forward. The story does this in a manner that also does not correspond to reader expectations. Some scenes are lengthy with a lot of detail, and other, far more important, points in the story are skipped over in less than a page. Several very important turning points are told as a brief flashback.
If Hugh Cook had written The Lord of the Rings, it would be in a single volume and the entire time in Moria would have been narrated by Aragorn in Lorien and he would have taken only a paragraph to do it.
It is impossible to know how significant various obstacles and antagonists will be in preventing the protagonists (who these are changes in the course of the book) from reaching their goal. Sometimes there is the long, nail-biting confrontation one expects, but many problems go away in a puff. Because Cook skips past so much in the story, there is a lot of story. Today, a publisher would insist on turning this into at least a trilogy, and it would not have been hard to do so. Because of this feature, I did get tired of the book a few times, but I will give this three stars because I believe that these features are intentional and I admire Cook's unpredictability and his boldness in breaking the conventions of the fantasy genre as well as those of Western narrative, even if I consider the result to be more failure than success.
I would not go out of my way to read this book, but if you want to have a tour of 80's fantasy, consider adding this to your list.