four o’clock
`` _ Mi scusi ? _ '' he murmured . The business which had called me to town obliged me to part from him as soon as the train entered the station , and in my dash for the street I left his unwieldy figure laboring far behind me through the crowd on the platform . Before we separated , however , I had learned that he was returning to Dunstable by the four o'clock train , and had resolved to despatch my business in time to travel home with him . When I reached Wall Street I was received with the news that the man I had appointed to meet was ill and detained in the country . My business was `` off '' and I found myself with the rest of the day at my disposal . I had no difficulty in deciding how to employ my time .