Finding Shelby

Shelby and her family live in a small town in Alaska. Even thought there isn't a lot of people, Shelby has always felt different compared to them. She knows that she has to figure out how she's different, so she runaway. Shes been missing for a year now. Her little sister Sophie promised that she would not go look for her but she has to. What will happen to Sophie while she goes to find her sister? Will Shelby find out why she's different? Will Sophie find Shelby?