nine o'clock
The man stopped and looked in at the windows of many of the stores , and close behind him every time stood Hugh ; he was at a loss to account for this behavior on the part of the man he was following , as his dilatory tactics were in sharp contrast to the way in which Lena had hurried . Every few moments the fake detective took out his watch and looked at the time . Hugh decided he must have an engagement for later on in the evening , and that until then there was nothing for him to do . As nine o'clock struck on the City Hall clock the man whom Hugh had been following stepped into a drug store . There was a row of telephone booths along one side of the store and the man entered one of these and shut the door . Hugh could see him through the glass , as he took down the receiver and gave the number to central . Hugh loitered around the store , looking at the various articles offered for sale under the numerous glass cases , while at the same time he kept a careful watch on the telephone booth .