Then he saw that she had not noticed, for she had not been looking at him.

"It could be carried in that way through the sleepers, you know, without attracting attention," she observed.

Eaton had controlled himself. "A sock!" he said again, reflectively.

He felt suddenly a rough tap upon his shoulder, and turning, he saw that Donald Avery had come out upon the platform and was standing beside him; and behind Avery, he saw Conductor Connery. There was no one else on the platform.

"Will you tell me, Mr. Eaton—or whatever else your name may be—what it is that you have been asking Miss Santoine?" Avery demanded harshly.

Eaton felt his blood surge at the tone. Harriet Santoine had turned, and sensing the strangeness of Avery's manner, she whitened. "What is it, Don?" she cried. "What is the matter? Is something wrong with Father?"

"No, dear; no! Harry, what has this man been saying to you?"

"Mr. Eaton?" Her gaze went wonderingly from Avery to Eaton and back again. "Why—why, Don! He has only been asking me what we had found out about the attack on Father!"

"And you told him?" Avery swung toward Eaton. "You dog!" he mouthed. "Harriet, he asked you that because he needed to know—he had to know! He had to know how much we had found out, how near we were getting to him! Harry, this is the man that did it!"

Eaton's fists clenched; but suddenly, recollecting, he checked himself. Harriet, not yet comprehending, stood staring at the two; then Eaton saw the blood rush to her face and dye forehead and cheek and neck as she understood.