Refiner's Fire Series by Lynn Austin

The daughter of a wealthy slave-holding family from Richmond, Virginia, Caroline Fletcher is raised in a culture that believes slavery is God-ordained and biblically acceptable. But upon awakening to the cruelty and injustice it encompasses, Caroline's eyes are opened for the first time to the men and women who have cared tirelessly for her. Her journey of maturity and faith will draw her into the abolitionist movement, where she is confronted with the risks and sacrifices her beliefs entail.

One deceived by a life of wealth and ease, the other desperate to flee her true identity. In a land shattered by war, unlikely heroes test the limits of their strength and discover that love has a meaning far beyond their imagination.