<p><strong>‘I can help you save your sister. But I need something from you …’</strong><br/><br/>Sisters Bree and Alissa Walker share a special bond. Neglected by their parents, they have always looked out for one another. But one day, sixteen-year-old Alissa goes missing. When Bree discovers her green backpack with all her belongings, abandoned on the steps of their run-down trailer, she knows that something bad has happened …<br/><br/>Then she receives a chilling text message. Someone has Alissa. But Bree will have to give up something very precious in exchange.<br/><br/>Desperate to save Alissa, Bree looks at everyone close to their family. She’s sure that Alissa’s best friend is keeping something back about her little sister and a boy at school, and why has their estranged uncle, who they’ve not seen in years, been hanging around again?<br/><br/>It soon becomes clear that the person behind the message knows a lot about the dark tru