The Comanche Girl's Prayer, Texas Women of Spirit Book 2

A clean, Christian read with a romantic element.
It's 1890. Called by God, nineteen-year-old Soonie Eckhart travels to an illegal Comanche and Kiowa settlement in North Texas to become a teacher for the children in hiding.
Despite her Comanche roots, she finds many in the group, including a volatile young man named Lone Warrior, refuse to accept her.
After a chance encounter in the hills with a band of dangerous men, Soonie must draw on the deepest parts of her faith and courage to survive.