Leanna attends a virtual school. For her history assignment she experiences a program that lets her actually experience being a runaway slave in Harriet Tubman's underground railroad. She then goes back to the virtual homeroom to discuss with her fellow students, who could be next door or across the country, how her experience compared to theirs. In the real world she lives with her mom in a community where most menial tasks are performed by manufactured biological clones who are treated as property, not human beings. As far as Leanna is concerned these creatures have no connection to the slaves in ancient United States history. But then her world is turned upside down. Her mom and her beloved Doc-Doc are both arrested for treason because they are members of the Liberty Bell Movement. Her mom calls herself an abolitionist, not an extremist. Leanna's assumptions about history, reality and her own identity are tested in this futuristic thriller.