Title: Demon Mistress
Description: The D'Artigo Sisters--half-human, half-Faerie operatives for the Otherworld Intelligence Agency--are charged with rooting out the secret society responsible for unleashing chaos magic against the city, and with stopping a demon from devouring Delilah's soul.
Subjects: Fairies, Magic, Otherworld Intelligence Agency (Imaginary organization), D'Artigo sisters (Fictitious characters), Fiction, Fiction, romance, paranormal, nyt:mass-market-paperback=2009-06-21, New York Times bestseller