eight o’clock at night
`` I 'll go and see what it is , '' she said to Thuillier , whose anxiety she noticed at once . `` What _ is _ the matter ? '' she said to the servant as soon as she reached the scene of action . `` Here 's a gentleman who wants to come in , and says that no one is ever dining at eight o'clock at night . '' `` But who are you , monsieur ? '' said Brigitte , addressing an old man very oddly dressed , whose eyes were protected by a green shade . `` Madame , I am neither a beggar nor a vagabond , '' replied the old man , in stentorian tones ; `` my name is Picot , professor of mathematics . ''