Dexter Is Delicious (Dexter 5)

Feeling surprisingly sunny and loving, he’s trying to suppress the influence of his Dark Passenger—the voice inside who guides his homicidal urges.  But Dexter is summoned to investigate the disappearance of a seventeen-year-old girl who has been running with a bizarre group of goths who fancy themselves to be vampires. As Dexter gets closer to the truth of what happened to the missing girl, he realizes they are not really vampires, but cannibals.  And most disturbing,  these people have their eyes on Dexter ... and their mouths are watering.