four o'clock
His brain was too active for sleep , and he sat up smoking another hour . It was two o'clock in the afternoon when Jack awoke from an unrefreshing slumber ; his head was heavy , and he would have liked to remain in bed for the rest of the day . He remembered that he had two engagements ; he had promised to attend a `` do '' at a studio in Joubert Mansions , Chelsea , where he would meet a lot of Tony Mostyn 's set , and make night noisy until the wee hours of the morning . At four o'clock he started to dress for the evening . At five a cab put him down in Pall Mall , opposite the premises of Lamb and Drummond . A clerk conducted him to the private office , which was well lighted . Mr. Lamb was present , and with him a soldierly , aristocratic-looking gentleman who had been summoned by wire from Sussex .