Honestly, I am not sure what happened to this book. The first half was pretty nice. While the mystery was incredibly obvious from the first fifty pages, the romance was sweet and slow and the the heroine was likeable. And then about 50% through this book, it became hardcore Christian fiction (which I hadn't realized it was because Amazon gave me no indication of this fact). 
 Now, I have no problems with Christianity in my romance novels. Especially not in historical romances where it is entirely plausible that the characters were all practicing Christians. But this book went beyond that and became incredibly preachy and, to be honest, disgusting. 
 At the climax of the story (I promise, no spoilers) when the hero and heroine are in trouble the heroine (who is in the middle of a crisis of faith) says: 
 "Let's figure out a solution. We are both of us clever. I am certain we can think of something." 
 A normal, level-headed response to a difficult situation. And what does the hero say? 
 "You think all you like." He inhaled deeply. "I am going to pray." 
 Seriously. What. The. Heck. If I were that heroine I would have slapped him for being such an idiot. Yeah, pray. (view spoiler)[Because God is going to save you from drowning. (hide spoiler)] Ugh. 
 Honestly, my husband had to ask me if I was okay because I believe at this point in the novel I screamed at the book in frustration. If it had been a real book and not an ebook on my kindle, I probably would have chucked it across the room out of anger. 
 So that point came at about 84% through the novel. I had realized for the first time that this was christian fiction at 50%, but kept struggling on because of my 50 book challenge that I have. And then at 84% I almost had to stop reading because it was too incredibly stupid. 
 I guess if you don't mind preachy Christian fiction with an obvious plot and two-dimensional characters then this is your book. The heroine, who had so much chance for depth and development, becomes a cardboard cutout as soon as the Christian fiction angle was added. I am not sure what happened to this book that it had such a promising beginning and such a disappointing end, but I would definitely not recommend it.