It was several minutes before anything happened. Then an elderly lady emerged from one of the elevators, and under the guidance of a bellboy approached the woman Grace had been following. Grace did not remember having ever seen the older woman before, but she had a distinct impression that it might be Mrs. Morton. She strolled over to the desk, and addressed the clerk in a low voice. "Is that Mrs. Morton--the elderly lady in black?" she asked. The clerk stared at her, but his reserve melted before her charming smile. "No, Miss," he said. "That is Mrs. Bradley." "Thank you." Grace gave a sigh of relief, and turned away. Looking once more toward the two women, she saw that the older one was addressing her companion with something of reserve, as though she had never met her before. The younger woman spoke quickly, smilingly, for a few moments, shook hands with her companion, and turned away. Grace saw that she was about to leave, and at once followed her, although at a little distance, so as not to excite her suspicions. When she reached the sidewalk the other woman had already entered her cab, and seemed about to drive off. The cab, however, merely moved to a position a little further down the street, and by the time Grace had entered her own vehicle the other had again become stationary. This maneuver struck Grace as extremely peculiar. She told Leary to remain where he was, and with some misgivings, awaited the woman's next move. After a time she saw Mrs. Bradley, who had gone toward the elevators as Grace left the lobby, come out, signal for a taxicab, and drive quickly off. Leary was obliged to draw up with his machine, in order to leave a clear space before the door. A few seconds later Grace saw the woman she had been following spring from her cab, come rapidly along the sidewalk, and once more enter the lobby. Grace again followed her, just in time to see that instead of applying at the desk, as before, she went directly to one of the elevators, entered, and was whisked out of sight. Grace's heart almost stood still with fear. She had not appreciated the meaning of the woman's actions before. Now they were only too clear. She had evidently gotten Mrs. Morton, whom Grace suddenly remembered had been registered under an assumed name, out of the way on some pretext or other, and had gone to Ruth's room, with the intention, no doubt, of carrying out her previous threats. The situation was frightful. It would admit of no delay. Grace dashed to the desk and began to speak rapidly, in a frightened voice, to the clerk. "That woman"--she exclaimed--"the one who just went up in the elevator--she is going to Miss Ruth Morton's room--you must stop her--there is no telling what she may not do--send up, quick--quick! Miss Morton is in the greatest danger." The clerk looked at her, his mouth half open with surprise.