When 14-year-old Carlotta Walls walked up to Little Rock Central High School on September 25, 1957, she and eight other black students only wanted to make it to class. But the journey of the "Little Rock Nine" would lead the nation on an even longer and much more turbulent path, one that would challenge prevailing attitudes, break down barriers, and forever change America. Descended from a line of proud black landowners and businessmen, Carlotta was...