This third book in the series brings in a third romance. Hallie, who has regenerative and shape-shifting properties, and Dune, who can control water. Mystery, intrigue, time rips and romance abound in this final book in the Hourglass trilogy. Although some trilogies loose steam and end disappointingly, this one does not. I enjoyed this last book and I think that people who enjoyed the first two books in the series will like this last one as well.