"'The explanation is a very simple one, as you shall hear. One day last week I had just come in from my walk and was passing through the hall, when my eye was caught by some letters on the table, which had arrived by the afternoon post. Thinking that perhaps one of them might be for me (although such an event would indeed be a rarity) I took them up to examine the addresses. There was none for me, but there was one for Miss Sudlow," which was sealed with wax as though it might contain something of value. I suppose it was a touch of natural curiosity that caused me to turn the letter over and examine the seal, which proved to be a representation of an Assyrian winged bull, and the same instant my memory recalled the fact that attached to Mr. Winslade's watch-guard was an intaglio which represented a winged bull. The inference to be drawn was an obvious one, at least it seemed so to me, and, as the event has proved, it was a correct one.' "It began to dawn upon me that there might be more, much more, behind those guileless blue orbs and that candid brow than either you or I had dreamed of. "'Your powers, both of observation and deduction, seem to have been cultivated to some purpose,' I remarked drily. "'I am not quite sure that I follow you,' she answered, with a puzzled look, which might be genuine, but might just as easily be assumed. 'You must bear in mind that I am not clever in the way you are. But now that you have been so frank with me on one point, perhaps you will be equally so on another. What special object, may I ask, had you in view in giving me a certain story to read?' "This was a question the answer to which demanded some consideration. For once in a way, my dear Phil, your generally ready and quick-witted Fan was undoubtedly nonplussed. "'Suppose I answer the question for you,' said Mrs. Melray presently, with a smile which brought both rows of her pearly teeth into view; but, for all that, it was not a pleasant smile by any means. "'The story in question having come under the notice of my estimable brother-in-law, and he being satisfied that, as far as some of the incidents it treated of were concerned, it could refer to one case and no other, brought you, my dear Miss Sudlow, to Loudwater House, hoping, by your help (that is to say, by matching one woman against another) to be able to sift to the bottom sundry statements embodied in the opening pages of the narrative, as to the truth or falsehood of which neither he nor anyone else had any knowledge whatever. Finding, after a time, that your design was no nearer its fulfilment than at first, you took the only step left open to you--you gave me the story itself to read, hoping to gain goodness only knows what advantage thereby. Tell me, now, are my surmises, or guesses, or whatever you like to call them, very wide of the mark?'