"At the same time," he remarked after a pause, during which he had sat puffing at his long pipe and gazing down into the fire, "you can hardly be open to a charge of sensationalism, for out of these cases which you have been so kind as to interest yourself in, a fair proportion do not treat of crime, in its legal sense, at all. The small matter in which I endeavored to help the King of Bohemia, the singular experience of Miss Mary Sutherland, the problem connected with the man with the twisted lip, and the incident of the noble bachelor, were all matters which are outside the pale of the law. But in avoiding the sensational, I fear that you may have bordered on the trivial."
     "The end may have been so," I answered, "but the methods I hold to have been novel and of interest."
     "Pshaw, my dear fellow, what do the public, the great unobservant public, who could hardly tell a weaver by his tooth or a compositor by his left thumb, care about the finer shades of analysis and deduction! But, indeed, if you are trivial. I cannot blame you, for the days of the great cases are past. Man, or at least criminal man, has lost all enterprise and originality. As to my own little practice, it seems to be degenerating into an agency for recovering lost lead pencils and giving advice to young ladies from boarding-schools. I think that I have touched bottom at last, however. This note I had this morning marks my zero-point, I fancy. Read it!" He tossed a crumpled letter across to me.
     It was dated from Montague Place upon the preceding evening, and ran thus:

"DEAR MR. HOLMES,
I am very anxious to consult you as to whether I should or should not accept a situation which has been offered to me as governess. I shall call at half-past ten to-morrow if I do not inconvenience you.
"Yours faithfully,
"VIOLET HUNTER."

"Do you know the young lady?" I asked.
     "Not I."
     "It is half-past ten now."
     "Yes, and I have no doubt that is her ring."
     "It may turn out to be of more interest than you think. You remember that the affair of the blue carbuncle, which appeared to be a mere whim at first, developed into a serious investigation. It may be so in this case, also."