The author and Goddess Fish Blog gave me the opportunity to read this story for review on this tour (thank you). You can find a copy wherever ebooks are sold and I see she has some short stories about Mercy out, too. Check it out.
Mercy is attractive but she's not dumb. As she starts digging, she finds out Gavin was upset about the death of a young bride and was investigating that. The further down the trail she goes, the nastier it gets.
There is a little too much in the story about how Mercy and her mother look Marilyn Monroe and everyone lusts after them. It goes on through the whole book. I'd like to see it toned down a bit in future books for my taste. It might work just fine for you.
The mystery is good, the murderers were a bit twisted, and Ms. Hartoin surprised me. I like that. I thought I had a clue but I was a bit off in my assumption. Why not see how you can do?