chunk: Mary is forced to work as a domestic slave for her father Horatio Green and his white wife. She arranges to trade places in prison with her lover, the slave George. He escapes to Canada. Sold to a slave trader, Mary is purchased by a French man who takes her to Europe. Ten years later, after the Frenchman's death, George and Mary reunite by chance in Dunkirk, France. The novel ends with their marriage.