Lois Duncan

As the novel opens, teenage heroine Julie James receives a mysterious note from an elusive stalker, reminding her of the time she and her friends killed a small boy on a bicycle in a hit-and-run accident, before covering it up. Each one of the group then receives a unique calling card, in the form of newspaper clippings, drawings and phone calls. However, what began as malicious mind games soon erupts into violence, when a succession of brutal attacks force the reluctant pact into taking action.