'A minute's demonstration is worth an hour's explanation. I'll call round tomorrow at your shop, about ten o'clock, and show you how to make the thing work.'
I lingered in the hall until the Frenchman came out, then, introducing myself to him, asked the privilege of visiting his shop next day at ten. This was accorded with that courtesy which you will always find among the industrial classes of France, and next day I had the pleasure of meeting Mr. Edison. During our conversation I complimented him on his invention of the incandescent electric light, and this was the reply that has ever remained in my memory:—
'It was not an invention, but a discovery. We knew what we wanted; a carbonised tissue, which would withstand the electric current in a vacuum for, say, a thousand hours. If no such tissue existed, then the incandescent light, as we know it, was not possible. My assistants started out to find this tissue, and we simply carbonised everything we could lay our hands on, and ran the current through it in a vacuum. At last we struck the right thing, as we were bound to do if we kept on long enough, and if the thing existed. Patience and hard work will overcome any obstacle.'
This belief has been of great assistance to me in my profession. I know the idea is prevalent that a detective arrives at his solutions in a dramatic way through following clues invisible to the ordinary man. This doubtless frequently happens, but, as a general thing, the patience and hard work which Mr. Edison commends is a much safer guide. Very often the following of excellent clues had led me to disaster, as was the case with my unfortunate attempt to solve the mystery of the five hundred diamonds.
As I was saying, I never think of the late Lord Chizelrigg without remembering Mr. Edison at the same time, and yet the two were very dissimilar. I suppose Lord Chizelrigg was the most useless man that ever lived, while Edison is the opposite.
One day my servant brought in to me a card on which was engraved 'Lord Chizelrigg.'
'Show his lordship in,' I said, and there appeared a young man of perhaps twenty-four or twenty-five, well dressed, and of most charming manners, who, nevertheless, began his interview by asking a question such as had never before been addressed to me, and which, if put to a solicitor, or other professional man, would have been answered with some indignation. Indeed, I believe it is a written or unwritten law of the legal profession that the acceptance of such a proposal as Lord Chizelrigg made to me, would, if proved, result in the disgrace and ruin of the lawyer.
'Monsieur Valmont,' began Lord Chizelrigg, 'do you ever take up cases on speculation?'
'On speculation, sir? I do not think I understand you.'
His lordship blushed like a girl, and stammered slightly as he attempted an explanation.
'What I mean is, do you accept a case on a contingent fee? That is to say, monsieur—er—well, not to put too fine a point upon it, no results, no pay.'
I replied somewhat severely:—
'Such an offer has never been made to me, and I may say at once that I should be compelled to decline it were I favoured with the opportunity. In the cases submitted to me, I devote my time and attention to their solution. I try to deserve success, but I cannot command it, and as in the interim I must live, I am reluctantly compelled to make a charge for my time, at least. I believe the doctor sends in his bill, though the patient dies.'
The young man laughed uneasily, and seemed almost too embarrassed to proceed, but finally he said:—
'Your illustration strikes home with greater accuracy than probably you imagined when you uttered it. I have just paid my last penny to the physician who attended my late uncle, Lord Chizelrigg, who died six months ago. I am fully aware that the suggestion I made may seem like a reflection upon your skill, or rather, as implying a doubt regarding it. But I should be grieved, monsieur, if you fell into such an error. I could have come here and commissioned you to undertake some elucidation of the strange situation in which I find myself, and I make no doubt you would have accepted the task if your numerous engagements had permitted. Then, if you failed, I should have been unable to pay you, for I am practically bankrupt. My whole desire, therefore, was to make an honest beginning, and to let you know exactly how I stand. If you succeed, I shall be a rich man; if you do not succeed, I shall be what I am now, penniless. Have I made it plain now why I began with a question which you had every right to resent?'
'Perfectly plain, my lord, and your candour does you credit.'
I was very much taken with the unassuming manners of the young man, and his evident desire to accept no service under false pretences. When I had finished my sentence the pauper nobleman rose to his feet, and bowed.
'I am very much your debtor, monsieur, for your courtesy in receiving me, and can only beg pardon for occupying your time on a futile quest. I wish you good-morning, monsieur.'
'One moment, my lord,' I rejoined, waving him to his chair again. 'Although I am unprepared to accept a commission on the terms you suggest, I may, nevertheless, be able to offer a hint or two that will prove of service to you. I think I remember the announcement of Lord Chizelrigg's death. He was somewhat eccentric, was he not?'
'Eccentric?' said the young man, with a slight laugh, seating himself again—'well, rather!'
'I vaguely remember that he was accredited with the possession of something like twenty thousand acres of land?'
'Twenty-seven thousand, as a matter of fact,' replied my visitor.
'Have you fallen heir to the lands as well as to the title?'
'Oh, yes; the estate was entailed. The old gentleman could not divert it from me if he would, and I rather suspect that fact must have been the cause of some worry to him.'
'But surely, my lord, a man who owns, as one might say, a principality in this wealthy realm of England, cannot be penniless?'
Again the young man laughed.
'Well, no,' he replied, thrusting his hand in his pocket and bringing to light a few brown coppers, and a white silver piece. 'I possess enough money to buy some food tonight, but not enough to dine at the Hotel Cecil. You see, it is like this. I belong to a somewhat ancient family, various members of whom went the pace, and mortgaged their acres up to the hilt. I could not raise a further penny on my estates were I to try my hardest, because at the time the money was lent, land was much more valuable than it is today. Agricultural depression, and all that sort of thing, have, if I may put it so, left me a good many thousands worse off than if I had no land at all. Besides this, during my late uncle's life, Parliament, on his behalf, intervened once or twice, allowing him in the first place to cut valuable timber, and in the second place to sell the pictures of Chizelrigg Chase at Christie's for figures which make one's mouth water.'
'And what became of the money?' I asked, whereupon once more this genial nobleman laughed. 'That is exactly what I came up in the lift to learn if Monsieur Valmont could discover.'
'My lord, you interest me,' I said, quite truly, with an uneasy apprehension that I should take up his case after all, for I liked the young man already. His lack of pretence appealed to me, and that sympathy which is so universal among my countrymen enveloped him, as I may say, quite independent of my own will.
'My uncle,' went on Lord Chizelrigg, 'was somewhat of an anomaly in our family. He must have been a reversal to a very, very ancient type; a type of which we have no record. He was as miserly as his forefathers were prodigal. When he came into the title and estate some twenty years ago, he dismissed the whole retinue of servants, and, indeed, was defendant in several cases at law where retainers of our family brought suit