A killer the police have dubbed Billy Dead Mates is killing pairs of best friends, one by one. Just before each murder, he sends his victim a small white book. Three regional police forces are working together to identify and catch Billy. For five months, they've been failing. Then a fifth victim, scared by what she's seen and heard on the news, comes forward to seek help. Unlike Billy's first four victims, she isn't dead. Yet ... The chilling new Culver Valley crime novel.