Mrs. Clover stopped singing suddenly, and the girl in panic returned the key to its hiding place, the knob to its socket.

But it had been a false alarm. In another moment the woman’s voice was again upraised.

Eleanor considered, staring about her. He had come into sight from beneath the staircase. She reconnoitred stealthily in that direction, and discovered a portion of the hall fenced off by a railing and counter: evidently the erstwhile hotel office. A door stood open behind the counter. With some slight qualms she passed into the enclosure and then through the door.

She found herself in a small, stuffy, dark room. Its single window, looking northwards, was closely shuttered on the outside; only a feeble twilight filtered through the slanted slats. But there was light enough for Eleanor to recognise the contours and masses of a flat-topped desk with two pedestals of drawers, a revolving chair with cane seat and back, a brown paper-pulp cuspidor of generous proportions and—a huge, solid, antiquated iron safe: a “strong-box” of the last century’s middle decades, substantial as a rock, tremendously heavy, contemptuously innocent of any such innovations as combination-dials, time-locks and the like. A single keyhole, almost large enough to admit a child’s hand, and certainly calculated to admit the key in the newel-post, demonstrated that this safe depended for the security of its contents upon nothing more than its massive construction and unwieldy lock. It demonstrated something more: that its owner based his confidence upon its isolation and the loyalty of his employees, or else had satisfied himself through practical experiment that one safe was as good as another, ancient or modern, when subjected to the test of modern methods of burglary.

And (Eleanor was sure) the Cadogan collar was there; unless, of course, the man had taken it away with him; which didn’t seem likely, all things considered. A great part of the immense value of the necklace resided in its perfection, in its integrity; as a whole it would be an exceedingly difficult thing to dispose of until long after the furore aroused by its disappearance had died down; broken up, its marvellously matched pearls separated and sold one by one, it would not realise a third of its worth.

And the girl would have known the truth in five minutes more (she was, in fact, already moving back toward the newel-post) had not Mrs. Clover chosen that moment to leave the kitchen and tramp noisily down the corridor.

What her business might be in that part of the house Eleanor could not imagine—unless it were connected with herself, unless she had heard some sound and was coming to investigate.

In panic terror, Eleanor turned back into the little room and crouched down behind the safe, making herself as small as possible, actually holding her breath for fear it would betray her.

Nearer came that steady, unhurried tread, and nearer. The girl thought her heart would burst with its burden of suspense. She was obliged to gasp for breath, and the noise of it rang as loudly and hoarsely in her hearing as the exhaust of a steam-engine. She pressed a handkerchief against her trembling lips.

Directly to the counter came the footsteps, and paused. There was the thump of something being placed upon the shelf. Then deliberately the woman turned and marched back to her quarters.