midnight
Anyhow , as we are at home now , let us wait and talk it all over again tonight after we get to bed . It is then , of course , that I do my most brilliant thinking . '' So with this in mind , obliterating all other thoughts at their hour of retiring , for the first evening since their fright ten days before , neither Polly nor Betty remembered the locking of their outside door upon getting into bed . And this time it was Polly O'Neill who was aroused first a short while after midnight by the slow turning of their doorknob and then the sense of an almost noiseless figure entering their bedroom . Immediately she awoke Betty by suddenly calling her name aloud , and at the same instant sprang out of bed , again touching the electric button and flooding the room with revealing light . `` Why , why ! '' exclaimed Polly in surprise and consternation , standing perfectly still with her hand upraised toward the light , too puzzled to let it drop down at her side .