six o'clock
`` You perceive , '' he said , `` the immense importance of the affair . The very existence of that document is almost a _ casus belli _ . '' `` At what time did the dispatch arrive , '' Peter asked , `` and what has been its history since ? '' `` It arrived at six o'clock , '' the ambassador declared . `` It went straight into the inner pocket of my coat ; it has not been out of my possession for a single second . Even whilst I talk to you I can feel it . '' `` And your plans ?