seven o'clock
`` Why are we mortal enemies ; my dear Princess ? '' `` Because I am a Russian and you are a Pole , '' she replied . `` But we shall not have time to quarrel . I am leaving for London at seven o'clock to-morrow morning . What is the date of your wedding ? '' `` If I dared hope that you would do me the honour to attend it , '' he said , skilfully evading answering her question , `` I might put it off until your return from England . '' `` You are too kind , '' said the Princess .