Priestess by Kara Reynolds

Edie Finch was living a content life working in the city-state of Eccleston, ten winters estranged from her husband. When the savage land of Tintar invades, she and other women, taking refuge in a chapel, pretend to be sacred priestesses to avoid their certain deaths, fooling an elite group of Tintarian warriors into taking them captive. This is a standalone fantasy with romance and self-discovery about a thirty-eight year old working-class woman who is not a chosen one, princess or warrior. She, using grace and wit, will navigate an invasion and abduction by an enemy army, be dragged halfway across her continent, form a circle of strength with her fellow captives, learn she has a practical sort of magic, be made to marry one of her captors, and uncover ancient mysteries that will save her world.