RaveNPRBy focusing the book and its characters through a single summer's day in 1974, the day a French tightrope-walker crossed a wire suspended between the World Trade Center buildings, the Irish writer Colum McCann offers us a glimpse into our collective past … These two women, Claire and Gloria, mirror each other like the twin towers that function as the central image of the book. As Philippe Petit managed to cross the divide between the World Trade Center buildings one summer day, these women traverse the great divides of race and class to become friends.