So much mystery was woven round her during her appearances in the European capitals, that I do not guarantee the correctness of my statements when I say she was of humble origin, a Russian gipsy, I have heard, seen in a Hungarian village by young Castalani, who immediately fell in love with her and married her. Although in the course of this investigation I saw her many times and she talked a great deal about herself, she was always vague when she was dealing with facts. I am only concerned with her appearance in London. She attracted overflowing houses to the Regency. A real live countess performing bizarre and daring dances was undoubtedly the attraction to some, the woman's splendid beauty charmed others, while a third section could talk of nothing but her wonderful jewelry. At least two foolish young peers were said to be in love with her, and there were tales of a well-known Cabinet Minister constantly occupying a stall at the Regency when he ought to have been in his seat in the House. Had I not taken Christopher Quarles and Zena to the Regency one evening I should probably never have known anything further of the contessa, but it so happened that the professor was very much attracted by her. He went to the Regency three times in one week to study the inward significance of her dances, he declared. He treated me to a learned discourse concerning them, and was furious when one journal, slightly puritanical in tone, perhaps, said that they were generally unedifying, and in one case, at any rate, immodest. Zena and I began by laughing at the professor, but he did not like it. He was quite serious in his admiration, and declared that nothing would afford him greater pleasure than an introduction to the dancer. To his delight he got what he wanted, and incidentally solved one of the most curious cases we have ever been engaged in together. In the ordinary way the case would never have come into my hands. It was at Quarles's instigation that I asked to be employed upon it, and since small and insignificant affairs are sometimes ramifications of big mysteries, no surprise was caused by my request. I have not the slightest hesitation in saying that it was the introduction to the woman which interested Quarles rather than her pearls. Indeed, he appeared to think of nothing else beyond making himself agreeable. It seemed to me she was just as interested in him, talked about herself in a naive kind of way, and was delighted when her little girl, Nella, took a tremendous fancy to the professor, demanding to be taken on his knee and to have his undivided attention. Christopher Quarles, in fact, presented quite an unfamiliar side of his character to me, and I do not think he would have bothered about the pearls at all but for the fact that the contessa was superstitious about them.