The Skeleton Key (Pandora English #3)

By day, Pandora English is a lowly fashion assistant. But by night, she is a supernatural scion. The Crow Moon is rising and Pandora has a date with Civil War soldier Lieutenant Luke, who will be flesh-and-blood for one night only. When Lieutenant Luke disappears, Pandora must unlock the mysteries of Number One Addams Avenue with her skeleton key and discover the secrets that lie in the forgotten laboratory of Dr Edmund Barrett. For Pandora has been warned: a powerful force is in the house. As Friday the Thirteenth looms, Pandora English and the citizens of Spektor are in grave danger. For the dead will rise and terror shall reign.