Craftily he approached the window through which he had seen Nora, and looked in. She was still there, but was now erect, talking with some one whom Bat could not see. She stood with her back to the window, her hands behind her; the revolver was still held in one of them, and while she was in this position, she placed it upon the stand.
"Clever work," said Bat, as he watched and saw the manœuvre successfully accomplished. "Disarming in the face of the enemy, and the said enemy never the wiser. But I wonder why the armament is not now necessary, and was so much so five minutes ago?"
He shifted a little, taking a chance of being seen in the streaming window lights. The person to whom Nora was talking was Big Slim. The burglar leaned upon the tall back of a chair with his elbows; his hands propped his chin, and he was steadfastly watching the girl and listening to what she said. And the Nora whom Bat now saw was greatly changed from the cautiously moving, fearfully listening creature of only a little while before.
"She's laughing," said Scanlon, amazed. "Laughing!"
She was; with her splendid head thrown back, her teeth shining white as milk. And then, as she spoke to the lank desperado before her, there were little ripples of amusement in her face; her hands gestured as though in mockery. But all this won no reflection in the cadaverous mask of the burglar; his shifty, green-colored eyes were as hard as stone, and as pitiless. He changed his position and began to speak; his utterances seemed slow and emotionless. His whole manner was of disbelief; time and again he seemed to strike at the same point; and Bat finally realized that he was charging the girl with something. But she stood before him, the look of amusement still in her face, her beautiful teeth gleaming when she laughed.
Finally with a sweep of his hand, Big Slim overset the chair, and with rigid anger in his hollow face moved toward her. The big Colt left its holster and appeared in Scanlon's hand. In the lanky gentleman's career as a housebreaker he had, doubtless, had many narrow shaves; but never had he stood so close to death as he did at that moment. And it was the girl who saved him.
With a gesture of amused contempt, she waved him back; turning, she took a wrap from a chair and threw it about her. Then with another motion—one of command—she stood facing him.
"She's telling him to open the door," said Bat "And," amazedly, "by George, he's doing it!"
For the tall figure of Big Slim disappeared into a part of the room outside Bat's vision. And now for the first time since he had seen her shadow crossing the wall, Nora Cavanaugh hesitated. For a flashing instant the watcher got a full view of her face as it was held away from the burglar. The laughter was gone; in its place was fear—pale, dumb fear; the hands which fumbled with the wrap were purposeless, with no direction. And then she, too, disappeared out of the range of the watcher's vision.
Disregarding all thought of possible detection, Scanlon now approached the window in the full glare of the light. He saw a door in the room standing open, and through this Nora was passing. Then the burglar pulled it shut and the place was a blank. Bat considered for only an instant as to what was best to do. His strong fingers gripped at the sash, and to his satisfaction and gratification it slid upward; with a pull he had lifted his heavy body upon the sill and was in the room. His steps were soft and long as he moved toward the door through which the two had just gone; his hand was reaching out for the knob when he saw it turning slowly. He shrank away intuitively, and against the wall, while the door opened with him behind it. He heard a hesitating sort of breathing, and then a step within the room. Around the edge of the door Bat could see the gas branch as it projected from the wall; a hand appeared and turned off the light, then the footsteps sounded once more, leaving the room, and the door closed as softly as it had opened.