The images stitched into Hannah's patchwork quilt lead to secret signposts on the Underground Railroad as she and her father take flight from slavery on a perilous path to freedom. The wagon wheel. The bear's paw. The flying geese. These are some of the squares in the quilt Hannah's mama helped her to sew -- before Hannah's sister was sold to another plantation and before Mama died of a broken heart. Now that Hannah's papa has decided to make the...