Unfinished simply because I got disinterested in the plot. Nothing interesting happened 100 pages in which is where I stopped. 
 I found Henry to be too pedophile-like for my liking, and the whole Kate having to stay in the manor, complete these tests and wed Henry, reminded me of the kidnapping of Jaycee Lee Durand. 
 Just fell flat. And still I don't know much about the story of Persephone and Hades besides that she fell in love with a mortal and ran away?