Children of the Night — Kristine Kathryn Rusch

No one told Cammie about the children. She finds out on her sixth eradication. The fear in the little girl's eyes, the horror at Cammie's approach, brings on the dreams. She trained hard to become a vampire slayer, but now she questions everything. Her job, her motivations, even her own past.

“Children of the Night” appears in a different form in the novel Sins of the Blood.

“It's horror in the same way that Robert Bloch's Psycho is -- horror of the soul.”
-- Locus on Sins of the Blood