one o'clock
Her sister is the housekeeper at the La Salle 's and she told Miss Elkins that Mignon was expelled from boarding school because she would n't pay attention to the rules . She was threatened with dismissal twice , and the other night she coaxed a lot of the girls to slip out of the dormitory and go to the city to the theatre without a sign of a chaperon . One of the girls had a key to the front door and she lost it . They did n't get home until after one o'clock , and then they could n't get into the dormitory . The night watchman finally had to let them in and he reported them . She and two others were expelled because they planned the affair . I do n't know what happened to the rest of them .