eleven o’clock
`` Ah ! my daughter , you are very hard , '' he replied , sitting down in an armchair and allowing her to leave him . The next morning , on coming downstairs , Marguerite learned from Lemulquinier that Monsieur Claes had gone out . This simple announcement turned her pale ; her face was so painfully significant that the old valet remarked hastily : -- `` Do n't be troubled , mademoiselle ; monsieur said he would be back at eleven o'clock to breakfast . He did n't go to bed all night . At two in the morning he was still standing in the parlor , looking through the window at the laboratory . I was waiting up in the kitchen ; I saw him ; he wept ; he is in trouble .