The dead run
(Book)

"[A]n edgy novel set in the netherworld of the Mexican-American border. On both sides of the border, girls are going missing and bodies are beginning to surface. It's a deadly epidemic of crime that plunges a small-town police chief into a monster of an investigation he's not equipped to handle. An ancient evil has returned, and now everyone-- the innocent and the guilty-- must face their deepest terrors" -- from publisher's web site.