Peeps is a science fiction vampire novel written for young people. It concerns a parasitologist who is a carrier for a perfectly realized, scientifically justifiable strain of vampirism. Cal, the parasitologist hero, is in the employ of an ancient secret society headquartered in New York’s bowels — a society that goes all the way back to the days of New Amsterdam and is the oldest secret society in the Americas, edging out the Masons by a couple decades. Cal’s job is hunting down vampires — “Parasite Positives” or “Peeps” — and the rats who act as disease-reservoirs for their infections.