“I’m afraid the state of my other engagements just at present will scarcely admit of that. Indeed, to speak quite frankly, this mere watching, especially of husband or wife, is not a sort of business that I care to undertake, except as a necessary part of some definite, tangible case. But apart from that, will you allow me to advise you? Not professionally, I mean, but merely as a man of the world. Why come to third parties with these vague suspicions? Family divisions of this sort, with all sorts of covert mistrust and suspicion, are bad things at best, and once carried as far as you talk of carrying this, go beyond peaceable remedy. Why not deal frankly and openly with your husband? Why not ask him plainly what he has been doing during the days you were unable to get into his office? You will probably find it all capable of a very simple and innocent explanation.” “Am I to understand, then,” Mrs. Geldard said, bridling, “that you refuse to help me?” “I have not refused to help you,” Hewitt replied. “On the contrary, I am trying to help you now. Did your husband ever follow any other profession than the one he is now engaged in?” “Once he was a mechanical engineer, but he got very few clients, and it didn’t pay.” “There, now, is a suggestion. Would it be very unlikely that your husband, trained mechanician as he is, may have reverted so far to his old profession as to be conceiving some new invention? And in that case, what more probable than that he would lock himself securely in his office to work out his idea, and take no notice of visitors knocking, in order to admit nobody who might learn something of what he was doing? Does he keep a clerk or office boy?” “No, he never has since he left the mechanical engineering.” “Well, Mrs. Geldard, I’m sorry I have no more time now, but I must earnestly repeat my advice. Come to an understanding with your husband in a straightforward way as soon as you possibly can. There are plenty of private inquiry offices about where they will watch anybody, and do almost anything, without any inquiry into their clients’ motives, and with a single eye to fees. I charge you no fee, and advise you to treat your husband with frankness.” Mrs. Geldard did not seem particularly satisfied, though Hewitt’s rejection of a consultation fee somewhat softened her. She left protesting that Hewitt didn’t know the sort of man she had to deal with, and that, one way or another, she must have an explanation. “Come, we’ll get to lunch,” said Hewitt. “I’m afraid my suggestion as to Mr. Geldard’s probable occupation in his office wasn’t very brilliant, but it was the pleasantest I could think of for the moment, and the main thing was to pacify the lady. One does no good by aggravating a misunderstanding of that sort.” “Can you make any conjecture,” I said, “at what the trouble really is?”