Dexter in the Dark

The third book in the Dexter series finds Dexter and Rita preparing for their upcoming nuptials, and Dexter trying to put Cody and Astor on the Harry Path: Cody has a Dark Passenger of his own, and Dexter is trying to keep him from making mistakes and getting caught. When two co-eds are brutally decapitated, Dexter takes one look at the crime scene and his own Dark Passenger runs for the hills, leaving him alone for the first time. Dexter isn't sure what kind of evil could possibly frighten his own, but clearly it isn't good.