four o'clock
He looked around for a taxicab or a carriage , but there was none in sight . A policeman on the next corner directed him to a trolley car , and told him where to transfer in order to reach Dudley Blythe 's residence . As he swung up on to the platform of the car he looked at his watch again . It was half-past four o'clock . It was past five when he reached the house . A tie-up of cars on the track ahead was accountable for the delay . Mary , in the machine and by a more direct route , had reached home nearly half an hour before .