"I like a good detective story, but they begin in the wrong place! They begin with the murder. But the murder is the end. The story begins long before that." So remarks esteemed criminologist Mr. Treves. Truer words have never been spoken, for a psychopathic killer has insinuated himself, with cunning manipulation, into a quiet village on the river Tern. But who is his intended victim? What are his unfathomable motives? And how and when will he reach...

Noticing that a popular series of horror novels is having a bizarre effect on the behavior of its readers, Franny and Beamer set out to find the mysterious author.