Mermaid Moon is the second book in the Sunset Cove series written by Colleen Coble. It can be easily read independently from the first book but the author does allow us to visit characters from The Inn at Ocean's Edge. Mystery, romance, and adventure are all a part of this story and I have to admit I was guessing until the very end. The story is quite exciting with lots of surprises and secrets. One of the major focuses of the story is on forgiveness. The past haunts the main characters, Mallory Davis and Kevin O'Connor, and they struggle with forgiving themselves as well moving on with their lives. I was touched by their stories yet I had a difficult time believing their relationship. Their dialogue was a bit forced and cliched and I failed to care very much about them. While I did enjoy the mystery, the location of the story (Maine!), and the supporting characters I was not as enamored of this book as I am with other Colleen Coble's books. It would be a fun beach read, though, as it's easy to get into and I loved reading the continuing story of characters from The Inn at Ocean's Edge.