Twelve o'clock
But you know best , so good-bye and good luck to you ! '' I went out to the lift with Martin , who asked if he could take me for a walk in the morning . I answered yes , and inquired what hour he would call for me . `` Twelve o'clock , '' he replied , and I said that would suit me exactly . The Bishop came to dine with us that night , and after dinner , when I had gone to the window to look out over the city for the three lights on the Loggia of the Vatican , he and my father talked together for a long time in a low tone . They were still talking when I left them to go to bed . At breakfast next morning my father told me that something unexpected had occurred to require that we should return home immediately , and therefore he had sent over to Cook 's for seats by the noon express .