Book excerpt: When Max finds herself shooting a picture at a crime scene, she changes her life forever. Suddenly, every Polaroid she takes is accompanied by a dark figure, that seems to follow everywhere she goes. Unable to rid herself of it, she starts to dig, trying to find out what it wants. But what she discovers, scares her: because the thing turns out to be a former human that went to Max's High school, murdered in cold blood. And she won't leave Max alone until she solves the case...