Play Dead book by Harlan Coben

When Laura Ayers and David Baskin secretly marry, it is a match made in heaven. She is a former model turned entrepreneur, while he is the Boston Celtics basketball sensation. But tragedy strikes on their Australian honeymoon when David never returns from a swim in treacherous waters. As Laura struggles with her grief, events unfold to make her question David's mysterious disappearance. She begins to uncover a conspiracy of past and present that slowly destroys all those involved. Published By Orion Publishing on 2010