He spoke bitterly, for he was furious that he should have allowed his man to be forced into the surrender of his rights. Man-like, he felt the necessity of blaming his own derelictions on some one else.

Miss Fitzhugh seemed to understand, for she stepped forward and laid her hand on his arm. “Believe me, Mr. Caruth,” she declared earnestly, “believe me, you have done right. Whatever value this letter possessed belongs to us of right. The man who wrote it betrayed a secret that was not his; and, whether his or no, your valet could not have profited by it. You have done a good deed, and you have been as kind and true and staunch to me as my own brother could have been. My mother was right when she told me a woman could always appeal safely to an American gentleman. Now, good-night and good-by.”

Alarm drove away Caruth’s misgivings. “You—you will let me see you again,” he begged.

Slowly the woman shook her head. “I fear not,” she answered. “I shall sail for home on the next steamer—this very day if I can find one leaving. This is good-by.”

“But—but—where are you going? It is not easy for a woman to find accommodations at this time of the night. See, it is after twelve o’clock. Won’t you stay here? I can easily go to a hotel.”

Again the woman shook her head. “I have friends waiting for me,” she averred. “Good-night.”

The blackness of despair settled on Caruth. “But—but—I can’t let you go like this. I must see you again. Tell me where your home is. Let me hope to see you there some day. I’ve known you only an hour or two, but I can’t—I can’t let you go out of my life this way, without a word or a sign. I must see—good God! What’s the matter?”

On the woman’s face a look of frozen horror had dawned. Her eyes dropped from his to the letter she had unconsciously withdrawn from its envelope; and following them, Caruth saw in her hand a sheet of paper, stiff and white, very different from the soft, sea-stained sheet he had handled a few moments before. It scarcely needed her terrified words to give the explanation.

“He has substituted another letter!” she cried. “He was acting all the time! And I did not guess! I did not guess! He has gone with the hope of Russia in his hands!”

CHAPTER FOUR