The abolitionist's daughter / Diane C. McPhail.

Enhanced descriptions from Syndetics:

On a Mississippi morning in 1859, Emily Matthews begs her father to save a slave, Nathan, about to be auctioned away from his family. Judge Matthews is an abolitionist who runs an illegal school for his slaves, hoping to eventually set them free. One, a woman named Ginny, has become Emily's companion and often her conscience-and understands all too well the hazards an educated slave must face. Yet even Ginny could not predict the tangled, tragic string of events set in motion as Nathan's family arrives at the Matthews farm. A young doctor, Charles Slate, tends to injured Nathan and begins to court Emily, finally persuading her to become his wife. But their union is disrupted by a fatal clash and a lie that will tear two families apart. As Civil War erupts, Emily, Ginny, and Emily's stoic mother-in-law, Adeline, each face devastating losses. Emily-sheltered all her life-is especially unprepared for the hardships to come. Struggling to survive in this raw, shifting new world, Emily will discover untapped inner strength, an unlikely love, and the courage to confront deep, painful truths. In the tradition of Cold Mountain, The Abolitionist's Daughter eschews stereotypes of the Civil War South, instead weaving an intricate and unforgettable story of survival, loyalty, hope, and redemption.