The Unwedding by Ally Conde

This was an enjoyable read, which lies on the lighter end of the "good fiction" spectrum. I have found the Reese Witherspoon monthly book choices to be reliably enjoyable (with a couple exceptions--and I have read only a third of them--but it is a list I am working my way through slowly, so yes, I would recommend it). There are two "unweddings" here. The first is Ellery's--she decided to be a guest at the Big Sur exclusive resort since she had a prepaid reservation. She and her husband, Luke, were supposed to spend their twentieth wedding anniversary together until he tells her he wants a quick divorce since he already has a girlfriend. Her best friend convinces her that a few days in the lap of luxury will be good for her. While it does pan out for her, it doesn't start off well. She is at the exclusive resort that has been mostly booked for a wedding and while it got off to a good start, the second unwedding happens when the groom is found dead. It becomes a locked room mystery because in addition to the murder, there is also a massive mud slide isolates them all for several days while they try to figure out who amongst them did the deed.