twelve o'clock at night
But could she be sure of that ? Suppose he had been a thief -- she shivered and drew the covers over her head . In that case she should have roused Miss Ada and told her the story . But then , Miss Ada 's first question was sure to be , `` How did you happen to be standing by the window at twelve o'clock at night ? '' Then would come suspicion , a search , perhaps , and discovery . No , she could n't , she could n't ! But what had that man been doing ?