Capper was still wrestling with that baffling stubbornness of the body. Each word the girl uttered was like vitriol on his writhing soul. His mind willed murder--willed it with all the strength of hate; but still the springs of his body were cramped--by what? Not cowardice, for he was beyond reckoning results. Certainly not compassion or any saving virtue of chivalry. Why did his eyes constantly stray to that white hand lifted to allow the fingers to play with the filigree of wood on the mirror support? "Then you engineered the stealing of my number--from the hollow under the handle of my cane--some time between Paris and Alexandria?" he challenged in a whisper, his face thrust forward between hunched shoulders. "No, indeed. It was necessary for you to have--the evidence of your profession when the English searched you at Malta. But the loss of your number is not news; Koch, in Alexandria, has reported, of course." The girl saw Capper's foot steal forward again. He was not six feet from her now. His wiry body settled itself ever so slightly for a spring. Louisa rose from her chair, one hand still resting on the wooden rosette of the mirror standard. She began to speak in a voice drained of all emotion: "You followed me here to-night, Billy Capper, imagining in your poor little soul that you were going to do something desperate--something really human and brutal. You came in my window all primed for murder. But your poor little soul all went to water the instant we faced each other. You couldn't nerve yourself to leap upon a woman even. You can't now." She smiled on him--a woman's flaying smile of pity. Capper writhed, and his features twisted themselves in a paroxysm of hate. "I have my finger on a bell button here, Capper. If I press it men will come in here and kill you without asking a question. Now you'd better go." Capper's eyes jumped to focus on a round white nib under one of the girl's fingers there on the mirror's standard. The little ivory button was alive--a sentient thing suddenly allied against him. That inanimate object rather than Louisa's words sent fingers of cold fear to grip his heart. A little ivory button waiting there to trap him! He tried to cover his vanished resolution with bluster, sputtering out in a tense whisper: "You're a devil--a devil from hell, Louisa! But I'll get you. They shoot women in war time! Sir George Crandall--I know him--I did a little service for him once in Rangoon. He'll hear of you and your Wilhelmstrasse tricks, and you'll have your pretty back against a wall with guns at your heart before to-morrow night. Remember--before to-morrow night!" Capper was backing toward the open window behind him. The girl still stood by the mirror, her hand lightly resting where the ivory nib was. She laughed.