The Art of Keeping Secrets by Patti Callahan Henry

Annabelle Murphy was married to Knox, the love of her life. Together they had two children and a close group of friends. But two years ago Knox was killed in a plane accident and the wreck was never found. It hasn't been easy but she has managed to handle her grief. Then one day she receives a visit from the sheriff. He has come to inform her that when lost hikers were found, the wreckage of the plane was also found. And there is more. He tells her that a body of a female was also found in the plane. Annabelle's whole world has been turned upside down. All of their close friends swear they do not know who the woman could be. Annabelle decides to travel to the town where Knox had stopped to refuel on his trip and look for some explanation of why her husband was with another woman. And that's all I'm going to tell you! I enjoyed reading it and was drawn into the mystery. Check it out!