"You don’t know me, but I’m your sister."

Claire is shocked when she receives a message out of the blue from Sophie, a beautiful young woman who tells Claire that she’s their father’s secret child. Having spent years nursing her sweet little daughter, Ella, through a life-threatening illness whilst dealing with the emotional fall-out of a devastating marriage breakdown, Claire feels tentatively excited to meet Sophie. Perhaps she might finally have someone in the family to lean on....

As Claire welcomes her sister into her life, she’s delighted to see just how much Ella loves her new Aunt Sophie. But as the pair spend more time together, Claire begins to wonder where exactly her perfect new sister came from and what kind of person she really is. With their elderly father’s mind rapidly deteriorating, is it possible that he’s hiding something from Claire about Sophie’s sudden appearance in their lives?

When Sophie suggests a family day at the seaside, little Ella is beyond excited. But as Claire takes an important phone call from her demanding ex-husband, leaving Sophie in charge of Ella, something unthinkable happens. And as Claire rushes into the ice-cold sea towards the small, limp figure of her daughter, she realizes that Sophie was watching the whole time. But why would Sophie want to hurt Claire’s precious daughter? Was trusting her new sister with Ella the biggest mistake of Claire’s life?

If you enjoyed The Girl on the Train, My Lovely Wife, and Lucinda Berry’s The Perfect Child, you’ll love this heart-stopping psychological thriller from best-selling author Sheryl Browne.