"I was coming to them. They were all taken on for the dinner, with the exception of Tatsu, who has been with me for years, and whom, I think, I would trust further than I would myself. When I questioned him he was extremely clear and quick in his answers. His story is that the extra servants all departed before my guests did, and that he personally saw them each one leave and locked the door after them. Then, after the guests had gone he locked up the other rooms very carefully and went to bed. This morning he got up early and put the whole apartment in order; and he is positive, and when Tatsu is positive he is not apt to be mistaken, that neither the photographs nor the maps were on that table, nor indeed anywhere in the rooms at five o'clock in the morning."

The Mariposa listened attentively to what he had to say, and then thought deeply for a few moments.

"There are only two possible explanations of the whole affair, which are in the least plausible," she said at last. "One is that some interested person or persons have heard of your find. It might be some prospector who has been tracking you for weeks, and he, or they may have stolen the papers with a view of communicating with the owners, whom they may know and whom they may fancy that you have not discovered. Your valet may or may not be a tool, that remains to be discovered. Well," resolutely, "in that case there is nothing to fear, I can assure you of that.

"The other hypothesis is that one of the guests had a motive for removing those especial maps and photographs, thus securing possession of them. But who and why?" As she pondered this question an expression of most startled and amused surprise swept over her face, and then she burst out laughing. "How funny!" she cried. "How awfully funny!" The peals of her silver laughter rang through the room.

"What is so awfully funny?" inquired Hayden politely, but with an irritation he could not conceal. "I assure you, it does not seem funny to me."

Ydo had evidently recovered her spirits; the sparkle had come back to her eyes, the color to her cheeks. "Don't bother any more," she counseled blithely. "It's all going to turn out right now. You see."

"I should prefer to know how." Hayden's irritation was increasing instead of diminishing, and he spoke more stiffly than before. "As it is a matter which concerns me primarily and which has caused me much worry I think it only fair that you should share with me the knowledge which seems to justify you in drawing such happy conclusions."

Hayden would never again be nearer losing his temper completely than he was at this moment, for Ydo, after gazing at him for a moment with a sort of whimsical, mock seriousness, again broke into laughter. "Who would ever have dreamed of her doing such a thing?" she apostrophized the ceiling.

"Her!" Hayden felt as if his heart had stopped beating for a moment and then begun again with slow and suffocating throbs. Perhaps Ydo saw or guessed something of his emotion, for she again repeated reassuringly: "It will be all right now within a few hours. You Will see."

"It's going to be dropped," he said in a dull, toneless voice. "It's my affair, Mademoiselle Mariposa, and you are not going to make the least move in the matter. Your suspicions—whichever one of my guests they affect, and I can not even surmise which one you are trying to implicate—are quite beside the mark. This is entirely my own affair, and I tell you, we are going to drop it. Do you hear?"