His terrible secret. Her life-shattering choice . . . Discover the enthralling story of secrets, family, and the danger of the truth from the bestselling author of HBO sensation BIG LITTLE LIES 'Another masterclass from the author of Big Little Lies' GRAZIA _________ Cecilia thought she knew her husband. That is until she finds an envelope with 'to be opened in the event of my death' written in his hand. Unable to resist temptation, she opens it, and learns a shocking truth he has never dared reveal. Now Cecilia faces a terrible choice. Because revealing her husband's secret will hurt those she loves the most . . . But could the consequences of staying silent be worse? _________ 'A staggeringly brilliant novel. It is literally unputdownable ' SOPHIE HANNAH 'Finely wrought tension holds up until the final page ' TELEGRAPH 'A tense, page-turning story which gradually draws everyone together in a devastating climax' MAIL ON SUNDAY ' Dark and compelling . . . a must read ' SUN