“Better see that Manley, the chauffeur—or no, I shall see him myself. You stick to what you’re at. Anything else?” “No, sir, I think not. What the girls talked most about was Miss Sylvia’s engagement. It seems she was engaged to some friend in the City and they were to have been married at the end of the month, and now they’ve had some bust up and the whole thing’s postponed, if not off altogether.” “That so? They didn’t tell you the reason?” “They did not, sir. But I can likely find out from Rachael if you want to know.” “I don’t suppose I do,” French returned, “but you might as well find out what you can—on spec. You know who the young man is?” “No, sir. They didn’t say.” French looked up his notebook. “I seem to know a deal more about it than you do,” he grumbled. “He is a clerk in Mr. Duke’s office, name of Harrington—Stanley Harrington. I interviewed him with the others in the office on the day after the murder, and he told me about the engagement. It seemed to be going strong then. When did they postpone it?” “They didn’t say that either, sir.” “Well, find that out, too. That’ll do for the present.” That evening French, in the guise of an out-of-work mechanic, took up his stand near Mr. Duke’s house, and presently saw the old gentleman arrive back from business in his car. An hour later he followed the chauffeur from the garage to a house in a small street off Esther Road. There French hung about for perhaps another hour, when he had the satisfaction of seeing the quarry emerge again, pass down the street, and disappear into the Rose and Thistle bar. This was just what the Inspector had hoped for, and after a few minutes he followed him in. To scrape acquaintance was easy enough. French, as a motor mechanic out of work, was provided with a ready introduction to any chauffeur, and over a couple of glasses of beer he learned first of the chances of jobs in the district, and secondly, by skilful pumping, many details of his new companion’s work and of the Duke menage. But he heard nothing that seemed in the slightest degree suspicious or interesting. The man himself, moreover, seemed of an honest, harmless type, and much too stupid to be concerned personally in enterprises with keys of safes. For a day the inquiry hung fire, and then Sergeant Nolan brought in a report which turned the Inspector’s thoughts into still another channel. Nolan had, it appeared, taken the pretty housemaid, Rachael, first to the pictures and then to supper at a popular restaurant. The girl had what the Sergeant called “the gift of the gab,” and it had only been necessary for him judiciously to supply an occasional topic, to have a continuous stream of more or less relevant information poured into his receptive ears.