midnight
`` True , true , '' agreed Bones graciously . `` And I rather fancy that they are a little bit on the most beautiful side , my jolly old graven image . All heart outpourings you understand -- but no , you would n't understand , my old crochety one . One of these days , as I 've remarked before , they will be read by competent judges ... midnight oil , dear old thing -- at least , I have electric light in my flat . They 're generally done after dinner . '' `` After a heavy dinner , I should imagine , '' said Hamilton with asperity . `` What are you going to do about it , Bones ? ''