Nine o'clock
`` It is right for you to see this interesting town , '' answered Gustave gravely , but with a merry gleam in his eye . `` However , I have ordered a carriage , so be patient . '' `` For what time ? '' `` Nine o'clock , when we have dined . '' `` We are to get there in the dark , then ? '' `` What reason is there against that ? '' he asked , smiling .