Today's episode features two books examining the sacrifices made by enslaved people in the U.S. First, NPR's Steve Inskeep speaks with author Ilyan Woo about Master, Slave, Husband, Wife. It's a true story about a young couple that poses as an elderly white man and his slave in order to escape the South. Then, author Kai Thomas tells NPR's Ari Shapiro about how his novel, In the Upper Country, takes a closer look at the relationship between Black and indigenous people – and how free Black communities in Canada became a safe haven during the American Civil War.