nine o'clock
asked the doctor curiously , `` and how could you come down stairs without waking Shirley or being seen by Aunt Trudy or Winnie ? '' `` I did n't go to bed , that is not really , '' confided Sarah . `` I lay down with all my clothes on , because Rosemary always comes in to see that our light is out before she goes to bed . But after nine o'clock I stayed up till I saw Jack shut the kitchen door of his house and then I knew he was through digging worms . '' `` Did n't you ever go to sleep before Rosemary came in to look at you ? '' asked her brother . `` Not once ? ''