midnight
When Silver retired for the night he watched the door of her bedroom -- which was in the same wing of the mansion of his own . Also he occasionally looked out to see if Pine had arrived , as the window of his room afforded a fair view of the blue door and the shrubbery . For over an hour -- as he told Lambert -- he divided his attention between the passage and the window . It was while looking out of the last , and after midnight , that he saw Miss Greeby climb out of her room and descend to the ground by means of the ivy which formed a natural ladder . Her window was no great height from the ground , and she was an athletic woman much given to exercise . Wondering what she intended to do , yet afraid -- because of Pine 's expected arrival -- to leave the house , Silver watched her cautiously . She was arrayed in a long black cloak with a hood , he said , but in the brilliant moonlight he could easily distinguish her gigantic form as she slipped into the shrubbery .