one in the morning
A glimmer of light had passed along one of the windows on the second floor . And the glimmer passed along a second window and a third , while he was able to see nothing but a shadow outlined against the walls of the rooms . And the glimmer descended from the second floor to the first and , for a long time , wandered from room to room . `` Who on earth can be walking about , at one in the morning , in the house where Baron d'Hautrec was murdered ? '' thought Shears , feeling immensely interested . There was only one way of finding out , which was to enter the house himself . He did not hesitate .