Michael Phillips 
Color of Your Skin Ain’t the Color of Your Heart (Shenandoah Sisters Book #3) [EPUB ebook] 

Book 3 of bestselling Shenandoah Sisters. Katie, the daughter of a plantation owner, and Mayme, the daughter of a slave, find themselves with only each other after the Civil War. They devise a scheme to keep Katie’s plantation going, disguising the fact they are all alone. Now in book three, the girls face new threats to their security. A long-lost uncle appears and then disappears as suddenly, taking their secret with them. Then a flood threatens to destroy the remaining cotton crop they need to save the plantation from foreclosure. Filled with fascinating period details, challenging questions of faith, and heartwarming friendship, this series has all the elements historical fiction fans love.