"I will be delighted to throw any possible light on the mystery of the castle. But first let us leave your brother in peace, to let me know why you came to America?" Maria Theresa drew the locket from her reticule. "This is what brought me." "May I see it?" and the Duke held out his hand, ingratiatingly. "What a charming old antique!" "No, Carlos. Rather you may see the locket, but not the memorandum in the back." The Duke registered an expression of polite surprise. "Memorandum?" "Yes," and the Princess removed a small bit of paper from the ivory back, swinging it forward to her cousin's hand, on the long silver chain. The nobleman's dark face assumed a ruddier hue, as he caught the trinket in fingers which Jarvis noticed were trembling in tell-tale manner. Jarvis watched the two of them in silence. "It's a curious old piece of work. And you came all the way to New York to get it?" "Yes." "You were fortunate to find it so soon." "I knew where to find it, Carlos; yet I was almost too late. Think of it, after that dear old family heirloom had lain in an antique shop for nearly ten years--suddenly there came two inquiries for it in a day, two beside my own. The first was from a distinguished-looking gentleman who had called early in the morning, describing it roughly to the old man, urging him to hunt for it. It took an hour to find it--and I happened to come in at the end of the hour. I doubled the offer of a museum collector, and trebled that of the distinguished-looking gentleman. I secured it." Here, the Princess shot a sharp look into the half-closed eyes of the Duke. "Who do you suppose could have wanted that locket but myself, Carlos?" "I suppose," and it was the assumed indifference of a cornered schemer, "it has already occurred to you that I am the 'distinguished-looking gentleman.' Has it, cousin?" The girl's curiosity piqued her. "But how did you learn about the memorandum, Carlos?" "I didn't, cousin. I had not the slightest suspicion that the locket contained an important secret; I doubt it now. I was merely following my pet hobby, in addition to a little family sentiment. I wanted to recover some of those precious heirlooms which had been scattered to the four winds." "When did you know that this one had been scattered to New York,--on your last visit to the boulevards of Paris?" And Jarvis' smile was as ingenuous as that of a babe of two. The Duke of Alva scowled. There seemed something uncanny in the sharpness of this American; but he prided himself upon the power of diplomacy. "I have seldom been in Paris: they are not so much interested in antiques as in very lively moderns, Mr. Ghost Breaker!... But there, you interrupted my thought! You would be surprised to see the collection which I have already rescued, and which, Maria, will some day be yours. You Americans are not noted as really astute collectors, Mr. Jarvis."