Cherryh is a bit unusual in that she writes in science fiction and fantasy. In my own mind these are mutually exclusive genre and she treats them that way. However she has an even spread of works across both realms. This is fantasy.
In some novels the protagonist is kept in the dark about what is really going on but in typical Cherryh style we are also kept in the dark! After a few readings one might glimpse the underlying reality of the plot, or not. Cherryh never patronises the reader by spelling out the detail but it might be nice if she dropped a few breadcrumbs - hard work but overall worth while.