Strengths: This author's Hearts At Stake series is popular, so readers who would nit normally be interested in this time period might pick this up. There is a lot of mystery and romance, so those are selling points as well. Readers who liked A Drowned Maiden's Hair will find this an interesting addition to this type of book.
Weaknesses: The cover is the sort of generic, historical, paranormal thing that graces so many books. Just makes me tired, and doesn't do justice to a good story.