This is the 2nd book in a series. This seems to be a popular writing method these days for romance/mysteries. It keeps from having to invent so many characters, I guess. As in most of these books, the main character is a childhood friend of the heroine of book one and also the soon to follow book three. She gets involved & falls in love with the best friend of husband #1. All these series are getting a bit tiring. It is not necessary to have read book #1 first, at least. The story is somewhat interesting in the scenes in Alaska and on the testing of some sort of naturally produced enzyme in the wolves being studied there. This is a beach book. Nothing heavy, but the characters are fun.