"Please take the cards away with you to your rooms, and please each of you remain there at least five minutes before coming out. Then take the cards in the envelopes, sealed, down-stairs and deposit them in the mail-box. It will not be unlocked until one o'clock. By that time I shall expect the thief to have deposited my jewelry in some hiding-place about the house or grounds--a dozen will suggest themselves on a moment's thought--the spot to be indicated on the card. By this method ample time is granted in which to make restitution with complete immunity from recognition, the secret will be kept, the scandal hushed up, and, best of all, I shall be able to continue considering each and every one of you my very dear friend."

"But"--and her handsome old face darkened with the shadow of the determination that rang in her tone--"if this scheme should fail, and the thief refuse to make restitution, then, though it break my heart, I shall feel without alternative other than to take certain steps--steps which I cannot now contemplate without positive loathing, so repugnant are they to me. . . ."

"Now I have finished," Mrs. Gosnold said quietly. "I am sorry to have imposed in this way upon your patience, but it seemed, I think you'll grant me, warranted and necessary. I thank you, and hope you'll forgive me. And now will you please return to your rooms, without asking me any questions, and do as I have begged? And I sincerely hope that this wretched business may not interfere with your enjoyment to-night. For my part, I am so confident of the success of this scheme that I mean to consider that I have not been robbed--that everything is as it has always been, and as it will be after the envelopes are opened at one o'clock."

She ceased; there was the stir of a general rising and movement toward the door, amid a hum of excited murmurings.

CHAPTER XIII
MARPLOT

Once sheltered by the privacy of her bedchamber and seated before the little white-enamel desk with its chintz-covered fittings that suited so well the simple, cheerful scheme of decoration, the girl lingered long, an idle pencil caught between fingers infirm of purpose. Her gaze was fixed as if hypnotised to the blank white face of the bit of cardboard that lay before her on the blotting-pad, her thoughts far astray in a dark jungle of horror, doubts, suspicions, fears.

Immediately after shutting herself in she had gone straight to this desk, possessed by the notion that there was a message requiring to be written upon the card, one self-exculpatory sentence which had framed itself in her mind as she sped down the corridor from that remarkable meeting in Mrs. Gosnold's rooms.

"I have not told you everything--but I am innocent," thus ran the words which she felt were demanded of her and a legitimate privilege, her duty to herself in sheer self-preservation. And as they wrote themselves down before her mental vision she saw two heavy strokes of the pen underlining "everything," and her own true name, Sarah Manvers, following in the place of the signature--no more "Sara Manwaring," Mrs. Gosnold's explicit commands to the contrary notwithstanding.

But that had been an impulse, only natural in the first shock of horror inevitably attending the disclosure of the robbery, to clear herself; or, rather, to reaffirm her innocence.