American Witch by Thea Harrison

Power can change a person…
For months Molly Sullivan endures the inexplicable: electrical surges, car breakdowns, visions. She even wonders if she might be the cause… and wonders if she might be crazy. Then she discovers her husband has cheated on her. Again. Now Molly realizes she is a newly awakening witch and a woman pushed over the edge.

Revenge can shape a person…
Josiah Mason is a Powerful witch and the leader of a secret coven with a shared goal: to destroy an ancient enemy who has ruined many lives. Josiah lost years to this man, and his sole focus is revenge. He’s prepared for every contingency—except encountering a beautiful new witch who understands nothing of the immense Power building within her or the attraction she wields over him.

Danger can bring them together…
When divorcing her husband, Molly uncovers a dangerous secret he’s willing to kill to protect. She turns to Josiah for help, and they discover a connection between Molly’s husband and Josiah’s enemy.
As they work together, a spark ignites between them that threatens to become an inferno. But Molly is done compromising herself for any man, and Josiah’s mission is his top priority. And the enemy is cunning, cruel, and drawing ever closer.

As the danger escalates, so does the tension between them. Is a lasting relationship possible? Will either of them live long enough to try?