The black box brings death and doom. The blond guy is pulling out the paper with the black dot on it "Bill Hutchinson went over to his wife and forced the slip of paper out of her hand. it had a black spot on it." The black spot means you're doomed to die.
The day is probably one of the most beultiful day of summer, and this day will be the last day for someone to appreciate. "The morning of June 27th was clear, with fresh warmth of a full summaer day; the flowers were blossoming profusely and grass was richly green."
The theme is old traditions can be awful anf people can be cruel. On the book it "Although the villagers had forgotten the ritual and lost the original black box, they still remenbered to use rocks. the black haired lady is getting stoned to death, because she had the black spot on her paper.