Book excerpt: Zoe and Ollie Morley tried for years to have a baby and couldn't. They turned to adoption and their dreams came true when they were approved to adopt a little girl from birth. They named her Evie. Seven years later, the family has moved to Yorkshire and grown in number: a wonderful surprise in the form of baby Ben. As a working mum it's not easy for Zoe, but life is good. But then Evie begins to receive letters and gifts. The sender claims to be her birth father.