The Forgotten Sister by Caroline Bond (paperback)
'Caroline Bond has a gift for weaving heart-rending tales of impossible decisions' Amanda Brooke, author of The Bad Mother
How do you protect the ones you love from the secrets that hurt them most?
Cassie is adopted. She's never felt like the odd one out in her family, but at seventeen she decides to find her birth mother. As she starts digging, she discovers her adoption was far more complicated than she could ever have imagined. And, in uncovering her history, Cassie learns of a terrible secret that her parents kept from her. A secret that will shatter relationships, expose the decisions of the past and lead everyone involved to question what really makes a family.