Harriet Bishop is descended from a long line of witches and uses her magic to help women in need - not only ordinary women, but also those with powers of their own.

Frances Allington has used her wiles and witchcraft to claw her way out of poverty and into a spectacular marriage with one of New York's wealthiest new tycoons. She is determined to secure the family's position among the city's elite by any means necessary - including a scheme involving her headstrong stepdaughter, Annis.

To save her from this dark magic, Harriet must help kindle Annis's own nascent powers. If Annis can't resist her stepmother's agenda, she could lose her freedom, and possibly her life.