Awful schlock, pictures and story both. The brothers Hildebrant have a lot to answer for. They're right up there with Boris Vallejo and Darryl K. Sweet in perpetuating the worst standards in fantasy artwork.
When I first read this book (c. age 12-13), I really, really liked it. It remained stored in my mother's basement for years, and a few years ago I decided to reread it - not a good choice. It doesn't hold up well, though the Hildebrandt's artwork remains good.