A galloping horse interrupts a sleepy afternoon as Thaddeus rides into the life of young Harriet. The Fugitive Slave Act is about to send a river of freedom-seeking men, women and children to the historic Elgin Settlement in Canada, where the Underground Railroad has carried Harriet and hundreds more. She is determined to become a courier like Thaddeus for the secret black anti- slavery Order. As she welcomes newcomers to the Settlement, Harriet struggles with her feelings for Thaddeus while fighting for an equal place in the Order, and Thaddeus agonizes over the family he left behind in the North Carolina Great Dismal Swamp community. Freedom