Thin Ice — Marsha Qualey

Seventeen-year-old Arden Munro has been raised by her older brother, Scott, ever since the death of their parents 10 years earlier. He has been her only family. But now Scott too is dead--or so believe the local police and everyone in Arden's community. Arden, however, is convinced that Scott has staged his snowmobile accident and purposely disappeared. She will search until she finds him. As Arden obsessively continues her detective hunt, she is forced to examine her feelings of loss and isolation, and to finally realize that these feelings existed long before Scott's accident. Whether or not her brother reappears, where should Arden turn for the support that usually comes from family?