"It may interest you to know that Señor Rodriguez's butler positively identifies it as one he restored to you twice at dinner last evening, between seven and nine o'clock," Mr. Grimm went on dispassionately.

"Indeed!" exclaimed Miss Thorne.

"The señor identifies it as one he found this morning in his office," Mr. Grimm explained obligingly. "During the night fifty thousand dollars in gold were stolen from his safe."

There was not the slightest change of expression in her face; the blue-gray eyes were still inquiring in their gaze, the white hands still at rest, the scarlet lips still curled slightly, an echo of a smile.

"No force was used in opening the safe," Mr. Grimm resumed. "It was unlocked. It's an old model and I have demonstrated how it could have been opened either with the assistance of a stethoscope, which catches the sound of the tumbler in the lock, or by a person of acute hearing."

Miss Thorne sat motionless, waiting.

"All this means—what?" she inquired, at length.

"I'll trouble you, please, to return the money," requested Mr. Grimm courteously. "No reason appears why you should have taken it. But I'm not seeking reasons, nor am I seeking disagreeable publicity—only the money."

"It seems to me you attach undue importance to the handkerchief," she objected.

"That's a matter of opinion," Mr. Grimm remarked. "It would be useless, even tedious, to attempt to disprove a burglar theory, but against it is the difficulty of entrance, the weight of the gold, the ingenious method of opening the safe, and the assumption that not more than six persons knew the money was in the safe; while a person in the house might have learned it in any of a dozen ways. And, in addition, is the fact that the handkerchief is odd, therefore noticeable. A lace expert assures me there's probably not another like it in the world."