midnight
Yes , Susy was a happy girl now . But , after all , was she quite happy ? Was she not at this very minute more or less oppressed by a secret fear ? Suppose any single individual in Merrifield heard of the midnight picnic -- the great , daring , midnight excursion into the heart of London . Susy knew far better than Kathleen what a mad action the girls were about to perpetrate . She knew because she lived with the class who discussed such things very openly . If their frolic was not discovered , all would be well ; if it was , it would be ruin -- ruin complete and absolute .