Debt of Bones by Terry Goodkind

This story follows Abby, a young woman seeking the First Wizard's help to save her family from invading D'Haran forces, burdened by a mysterious "debt of bones" linked to her deceased mother. Her journey to the formidable Wizard's Keep reveals the high stakes of a magical war, where wizards and sorceresses grapple with life-and-death decisions. Abby navigates political intrigue and personal fears, ultimately discovering the true nature of her family's debt and the First Wizard's difficult choices in protecting his people, leading to a profound resolution that reshapes the world. The narrative explores themes of sacrifice, duty, and the complex morality of power in a conflict-ridden land.