In the midst of a bloody civil war, Sister Morwen just wants to focus on prayer and charity at her convent. Unfortunately, her mother, Duchess Flora Byrne, happens to be the most powerful woman in the country, and she's just switched sides in the war. As an enemy army threatens the convent, led by a brutal warrior who mocks everything Morwen believes in, young Edwin Sigor, the rightful king, struggles to hold together his fragile coalition with Duchess Flora. If only his wayward sister could be more help. And if only his uncle weren't such a terrible general.

Change is coming to Morwen and her little cloistered community, but old habits die hard.