one
o'clock
`` It was not my intention to be leaving the author of the piece out of it , '' she threw back at him , laughing , at which Burns gave her a look . `` You 'd better mend your manners , '' he cried , gaily , `` or some day I 'll take my pen in hand to you , and _ then _ , may the Lord have mercy on your soul ! '' adding low , '' _ Mistress Nancy Stair ! _ '' Some consternation followed upon this , for it was unknown by any of them that he had seen Nancy in Edinbro ' , and after the talk was readjusted a bit to the news , the five of them , with Mrs. Todd listening on the other side of the door , sat till hard upon one o'clock , with uplifted minds , insensible to time or weather . The extreme disorder caused by the wind , for the storm had risen , at length recalled them to themselves , and Mrs. Todd , who worshiped the great poet , came in . `` You must lie here to-night , Mr. Burns , '' she said hospitably ; and as the poet lighted Nancy up the stair : `` Good night , '' he cried , `` good night ! '' and then , because there was a devil in the man whenever he looked at a pretty woman , `` I 'll have no sleep to-night .