midnight
`` We leave at six this evening . Count Quinnox has wired the Prime Minister that you will arrive in Edelweiss at three to-morrow afternoon , God willing . '' `` You knew that she had gone ? '' `` I happened to be in the Nordbahnhof when she boarded the train at midnight , '' replied the Baron , unmoved . `` Do you never sleep ? '' demanded Robin hotly . `` Not while I am on duty , '' said Gourou .