7:50
`` Let Mr. Cecil prove his innocence . '' Into Bertie 's eyes came a hunted , driven desperation . He turned them on Rockingham with a look that cut him to the heart ; yet the abhorrent thought crossed him -- was it thus that men guiltless looked ? `` Mr. Cecil was with my partner at 7:50 on the evening of the 15th . It was long over business hours , but my partner to oblige him stretched a point , '' pursued the soft , bland , malicious voice of the German Jew . `` If he was not at our office -- where was he ? That is simple enough . ''