She started away from him. She almost cried out in her dismay. But he stopped her. He took her face between his hands with an insistence that would not be denied. He looked closely, searchingly, into her eyes. "Is it Scott?" he said. She did not answer him. She stood as one paralysed, and up over face and neck and all her trembling body, enwrapping her like a flame, there rose a scorching, agonizing blush. He held her there before him and watched it, and she saw that his eyes were piercingly bright, with the brightness of burnished steel. She could not turn her own away from them, though her whole soul shrank from that stark scrutiny. In anguish of mind she faced him, helpless, unutterably ashamed, while that burning blush throbbed fiercely through every vein and gradually died away. He let her go at last very slowly. "I--see," he said. She put her hands up over her face with a childish, piteous gesture. She felt as if he had ruthlessly torn from her the one secret treasure that she cherished. She was free--she knew she was free. But at what a cost! "So," Eustace said, "that's it, is it? We've got at the truth at last!" She quivered at the words. Her whole being seemed to be shrivelled as though it had passed through the fire. He had wrenched her secret from her, and she had nothing more to hide. Sir Eustace walked to the end of the room and back. He halted close to her, but he did not touch her. He spoke, briefly and sternly. "How long has this been going on?" She looked up at him, her face pathetically pinched and small. "It hasn't been going on. I--only realized it to-day. He doesn't know. He never must know!" A sudden sharp note of anxiety sounded in her voice. "He never must know!" she reiterated with emphasis. "He hasn't made love to you then?" Sir Eustace spoke in the same curt tone; his mouth was merciless. She started as if stung. "Oh no! Oh no! Of course he hasn't! He--he doesn't care for me--like that. Why should he?" Eustace's grim lips twitched a little. "Why indeed? Well, it's lucky for him he hasn't. If he had, I'd have half killed him for it!" There was concentrated savagery in his tone. His eyes shone with a fire that made her shrink. And then very suddenly he put his hand upon her shoulder. "Do you mean to tell me that you want to throw me over solely because you imagine you care for a man who doesn't care for you?" he asked. She looked up at him piteously, "Oh, please don't ask me any more!" she said. "But I want to know," he said stubbornly. "Is that your only reason?" With difficulty she answered him. "No." "Then what more?" he demanded. It was inevitable. She made a desperate effort to be brave. "I couldn't be happy with you. I am afraid of you. And--and--you are not kind to--to Isabel." "Who says I am not kind to Isabel?" His hand pressed upon her ominously; his look was implacably stern.