"Those wretched things from the Philippines,—with the terrible odor? He only smoked one this week, and that was Monday morning, just after breakfast, in his room. I made Harrigan take the box of them away and hide it, so he couldn't get any more."

"Ah," said Holmes, a smile gleaming on his eager face, "that was just the time when some of the diamond cuff-buttons disappeared. Now, where were you all during Monday morning?"

"Right here in my own room, of course, having Teresa arrange my hair. I had breakfast served to me in here, and didn't go downstairs till noontime."

"And when was the Earl's room swept out?" pursued Holmes.

"Really, Mr. Holmes, what funny questions you do ask!" said the Countess, smiling. "The Earl's room was swept out about half-past eleven that noon, as soon as I came down and ordered Natalie to do it, after I saw the mess of cigar-ashes the Earl had left on the carpet."

"It's my business to ask funny questions, also to catch thieves, no matter how highly placed in society they are," said Holmes, rising from his chair. "Your Ladyship, you have now unwittingly given yourself away entirely. You stole at least one of the cuff-buttons, I am positive. Now, give it up before I publish it from the housetops."

And Holmes stood there, with arms folded, and regarded the Countess in a very grim and determined manner, while I stood at one side, my mouth open,—as usual.

The Countess turned white, then red, then pulled out her handkerchief and began to weep, which was disconcerting to the relentless Holmes.

"To think that I should be insulted so by a perfect stranger in my own home!" And the Countess wept some more. "What earthly connection is there between your silly questions about the Earl's cigars and the diamond-robbery, I should like to know?"

"Simply this," returned Holmes patiently, as the Countess wiped her tear-stained face with her handkerchief; "with the aid of my powerful microscope I was enabled to find that the specks of cigar-ashes adhering to the soles of your shoes that you wore Monday, the ones that I was compelled to take for evidence last night, and replaced in your room this morning, were from a Pampango cigar; and as you told me that the only time recently that the Earl smoked one of that brand was Monday morning, in his room, and that his room was swept out Monday noon, that proves conclusively that you were in his room during Monday morning. The fact that you also claimed to have been up here in your own room all during Monday morning shows that you had a strong motive for concealing your presence in the Earl's room at the time some of the cuff-buttons disappeared, which can only mean that you wished to cover up your theft. Is that clear enough?"