Lucifer's Daughter by V. J. Banis

After eighteen long and friendless years in an orphanage, Julia has finally traced her father, the handsome Dr. Lucius Cagliostro, to a small New England village. But her happiness soon turns into nightmarish terror. The town of Belham is home to unspeakable evil, and the dark and sinister forces that have tormented her all her life are also present too. She quickly finds herself the prey of a demon-worshipping society that wants to make her a slave—or a sacrifice—to the great Lucifer himself. A gripping novel of supernatural horror by a master storyteller!