Choker by Elizabeth Woods (author)

Cara Lange has always been a loner – even more so since she moved away from her only friend, Zoe, a few years ago. She spends her time avoiding the popular girls and watching dreamy Ethan, wishing he would notice her. Until the day she comes home and finds Zoe waiting there, on the run from problems at home. Cara agrees to help her hide – and her own life changes overnight. Before she can blink, she has a new look and new-found confidence; flirting with Ethan and being invited to parties. Best of all, she has her closest friend back again. Except that things aren’t quite right. A girl has gone missing in town, and Ethan is a suspect. On top of that, Zoe is acting very strangely. What does she do all day while Cara is at school? You’re supposed to be able to trust your best friend – but what is this strange new Zoe hiding?