Copper Sun by Sharon M. Draper

Amari’s life was once perfect. Engaged to the handsomest man in her tribe, adored by her family, and fortunate enough to live in a beautiful village, it never occurred to her that it could all be taken away in an instant. But that was what happened when her village was invaded by slave traders. Her family was brutally murdered as she was dragged away to a slave ship and sent to be sold in the Carolinas. There she was bought by a plantation owner and given to his son as a “birthday present”.