This is the final book in a series of 6. I enjoyed it greatly, it had a fitting end. The books are about a country called Terre d'Ange, whose motto is "love as thy wilt". As the series ends it is mostly about the second generation, with our main characters from the previous books seldom heard from.
In this vivid conclusion to the second Kushiel trilogy (after 2007's Kushiel's Justice), young Prince Imriel and his beloved, Sidonie, heir to the Terre D'Ange throne, struggle to come to terms with the deaths of Imriel's wife and unborn son. Queen Ysandre threatens to forbid Imriel's marriage to Sidonie unless he hunts down his traitorous mother, Melisande. Then a spell convinces everyone in Terre D'Ange's capital that Sidonie loves the prince of Carthage, and she sails off to wed him. Only Imriel remembers their romance. He must evade deluded loved ones and work with erstwhile enemies to rescue Sidonie and pull the country back from the brink of war.
It is considered fantasy and the romance in the books are mostly a back drop for the intrigue and adventure. Give it a try. One warning, it can get a little racy.