Book Title: Black Magic Woman
Author(s): Justin Gustainis
Series: Quincey Morris, Book 1
Publisher: Solaris, Year: 2009
Black Magic Woman: Supernatural investigator Quincey Morris and his partner, white witch Libby Chastain, are called in to help free a desperate family from a deadly curse that appears to date back to the Salem Witch Trials. To release the family from the danger they must find the root of the curse, a black witch with a terrible grudge that holds the family in her power.
The pursuit takes them to the mysterious underworlds of Boston, San Francisco, New Orleans, and New York, stalking prey that is determined to stay hidden. After surviving a series of terrifying attempts on their lives, the two find themselves drawn inexorably towards Salem itself and the very heart of darkness.