noon
Then , with a charming air of authority -- `` And now , you must go back to your work . I shall vanish instantly , if you waste another moment 's time because I am here . '' `` But I want to talk , '' he protested . `` I have been working hard since noon . '' `` Of course you have , '' she retorted . `` But presently the light will change again , and you wo n't be able to do any more to-day ; so you must keep busy while you can . '' `` And you wo n't vanish -- if I go on with my work ? ''