“I have done more by less than a tune,” said I, not very serious, but without giving up my hope, which I have never done in any case till it gave up me.

So with my list completed, and a promise to the gentleman that independently of the joke about the box I would do my best to get hold of the robbers, as well as the property, I left him. I felt that it was not a job to be taken lightly, or rather, I should say, that I considered my character somewhat at stake, insomuch as the gentleman seemed to place faith in my name. There is an amount of routine in all inquiries of this kind. The brokers, the ‘big uncles,’ (the large pawns,) and the ‘half uncles,’ (the wee pawns,) were all to be gone through, and they were with that dodging assiduity so necessary to the success of our calling. No trace in these places, and as for seeing one of my natural gentlemen in a grand blue beaver top-coat, I could encounter no such figure. I not only could not find where my highland laddie dwelt, but I did not even know my lover. Nor did I succeed any better with those who are fond of rings, for that the jewellery had found its way among the Fancies I had little doubt. How many very soft hands I took hold of in a laughing way, to know whether they were jewelled with my cornelians or torquoises, I can’t tell; but then their confidence as yet wanted the ripening of time, and I must wait upon a power that has no pity for detectives any more than for lovers.

And I did wait, yet not so long as that the tune of “The Blue-Bells of Scotland” had passed away, scared though it was by the hoarse screams and discords of crime and misery. One evening I was on the watch-saunter, still the old dodging way by which I have earned more than ever I did by sudden jerks of enthusiasm. I turned down Blackfriars’ Wynd, and proceeded till I came to the shop of Mr Henry Devlin, who kept in that quarter a tavern, which, without reproach to the landlord, was haunted by those gentlemen who owe so much to nature. Now, I pray you, don’t think I am a miracle-monger. I make the statement deliberately, and defy your suspicions when I say, that just as I came to the door of the tavern, which was open, and by the door of which I could see into a small room off the bar, my attention was arrested by a low and delicate sound. I placed my head by the edge of the open door and listened. The sound was that of a musical box. The tune was so low and indistinct that I held my breath, as if thereby I could increase the watchfulness of my ear. “It is! it is!” I muttered. Yes, it was “The Blue-Bells of Scotland.” The charmed instrument ceased; and so enamoured had I been for the few seconds, that I found myself standing in the attitude of a statue for minutes after the cause of my enchantment had renounced its power.

With a knowledge of what you here anticipate, I claim the liberty of a pause, to enable me to remark, that though utterly unfit to touch questions of so ticklish a nature, I have had reason to think, in my blunt way, that in nine cases out of ten there is something mysterious in the way of Providence towards the discovery of crime. Just run up the history of almost any detective you please, and you will come to the semblance of a trace so very minute that you may view it either as a natural or a mysterious thing, just according to your temperament and your point of view. As a philosopher, and a little hardened against the supernatural, you may treat my credulity as you think proper. I don’t complain, provided you admit that I am entitled to my weakness; but bearing in mind at the same time, that there are always working powers which make a considerable fool of our reasoning. Take it as you may, and going no further than the musical box, explain to me how I should have that night gone down Blackfriars’ Wynd, and come to Henry Devlin’s door just as “The Blue-Bells of Scotland” was being played by that little bit of machinery. You may go on with your thoughts as I proceed to tell you, that recovering myself from my surprise I entered the house. I did not stop at the bar where Mrs Devlin was, but proceeded direct into the room into which I could see from the door, and there, amidst empty tankards, I found the little instrument which had so entranced me, mute and tuneless, just as if it had been conscious that it had done some duty imposed upon it, and left the issue to the Power that watches over the fortunes of that ungrateful creature, man.

Taking up the monitor, which on the instant became dead to me,

“How came this here?” I said to the landlady, who seemed to be watching my movements.

“Indeed, I can hardly tell, Mr M‘Levy,” replied she, “unless it was left by the twa callants wha were in drinking, and gaed out just before you cam in. Did you no meet them?”

“No.”

“Then they maun hae gaen towards the Cowgate as you cam by the High Street.”

I paused an instant as an inconsistency occurred to me.