Maia by Richard Adams
He wrote Watership Downs which I vaguely recall was some great book. Been so long though, might have to glance at it again... This one is about a very high priced prostitute. Goes into great detail about how great a dancer and looker, etc she is. Seemed extremely different from Watership Downs. I didn't make it to the end of this 1000 page book though. If the hero was going to change this medieval dystopia there really wasn't any indication. And I didn't really like her anyway.