midnight
`` Half an hour later Granville arrived , and a glance at our group was quite sufficient to acquaint him with the state of affairs . '' ` So this is the man , ' said he , pointing to Durfy . '' ` Yes , sir . We caught him in the act of taking a letter out of the box at midnight . In fact , he 's got it in his pocket this moment . ' `` Durfy gave a fiendish grin , and said , -- '' ` That 's a lie . I 've no letter in my pocket ! '