six
o'clock
It was the _ Gare du Nord _ . I jammed the receiver back . `` As I passed through the hall , a clerk dashed after me ` The _ Gare du Nord _ , ' he said , ` were insisting upon seeing me about a case of mine . ' I replied that I was busy all day , and could see nobody before six o'clock . I did n't mention that my train went at five . It was as well I did n't argue , for , as I left the hotel , a station official entered . I leapt into a taxi and told the driver to go to _ Notre Dame _ .