The Husband’s Secret by Lianne Moriarty

My Darling Cecilia If you’re reading this, then I’ve died . . . Imagine your husband wrote you a letter, to be opened after his death. Imagine, too, that the letter contains his deepest, darkest secret – something so terrible it would destroy not just the life you built together,…

Sister by Rosamund Lupton

Nothing can break the bond between sisters… When Beatrice gets a frantic call in the middle of Sunday lunch to say that her younger sister, Tess, is missing, she boards the first flight home to London. But as she learns about the circumstances surrounding her sister’s disappearance, she is stunned…