“Nothing whatever,” she said, smiling bitterly, “only I am, for certain reasons, compelled to regard my recent whereabouts as a secret.”

“Why?”

She was silent. What could she say! What indeed? The man Mullet, who had been her protector, and who had treated her with such kindness and consideration, making her confinement much the less irksome than it would have been; the man who had stood between her and her brutal, red-faced inquisitor, and who, just at the moment when a grave peril threatened her, had opened the door and allowed her to escape, and laid upon her a solemn vow of secrecy. His words rang distinctly in her ears: “Remember, Miss Griffin, if you tell your friends what has happened to you it will result in my ruin. Our enemies will avenge themselves by giving me over to the police. Therefore, I beg of you to remain silent—at all hazards—for my sake!” And she had promised.

Could she break that pledge, given to the man who had saved her from shame and dishonour?

By her hesitation, grave suspicions had gathered within the minds of both her father and her lover. Ignorant of the true facts, they both misjudged her.

Frank’s quick jealousy had been fired by her determination not to make explanation. Yet he had tried to suppress the bitter thoughts growing within him, hoping that it was her father’s presence which prevented her from telling him in confidence what had occurred.

“I cannot see why you should make such a great mystery of the affair, my dear child,” remarked the Professor, clearly annoyed.

“Well,” and she laughed nervously, “perhaps I may tell you something some day, dad. But please excuse me now, dear. I—I’m tired and—and very upset.”

The old man recognised from her pale, hard-drawn features that she was not herself. Her highly strung nerves were at their greatest tension. And, perhaps, after all, he thought, it was injudicious of him to submit her to that cross-examination in Frank’s presence.

Indeed, both men desired to speak with her alone, both believing that they would then induce her to tell the truth.