ten o'clock
`` You see , '' explained Vandover as they passed slowly in front of the doors , `` this is all quiet enough . If you pulled down your veil no one would know the difference , and here 's the ladies ' entrance , you see , right at the side . '' `` All right , come along , let 's go in , '' exclaimed Ida suddenly , and before he knew it they had swung open the little door of the ladies ' entrance with its frosted pane of glass and had stepped inside . It was between nine and ten o'clock , and the Imperial was quiet as yet ; a few men were drinking in the barroom outside , and Toby , the red-eyed waiter , was talking in low tones to a girl under one of the electric lights . Vandover and Ida went into one of the larger rooms in the rear passage and shut the door . Ida pushed her bolero jacket from her shoulders , saying , `` This seems nice and quiet enough . '' `` Well , of course , '' answered Vandover , as though dismissing the question for good .