`Cross my heart and hope to die...' Promises only last if you trust each other, but what if one of you is hiding something? A secret no one could ever guess. Someone is living a lie. Is it Lisa? Maybe it's her daughter, Ava. Or could it be her best friend, Marilyn? Cross Her Heart publishes Spring 2018. You'll just have to wait to find out... The explosive new thriller from Sarah Pinborough, author of the Sunday Times Bestselling novel BEHIND HER EYES.