"Then, don't you see, the whole mystery is confined to two general solutions; either Mr. Strobel was seized by enemies and carried away; or he had some powerful reason for absenting himself, and disappeared voluntarily."

The Russian was surprised and deeply impressed by the young lady's clearness of vision, and Louise, listening with rapt attention, was simply amazed to hear her cousin reason so calmly when every word she uttered must have cost her pain.

"And which of these hypotheses," asked Poubalov, guardedly, "do you consider the more probable?"

"I have no means of judging between them," replied Clara, "for I have no fact except the disappearance to justify either one. It seems as if there must be some other theory, if I could only think what it is."

"There is no other," said Poubalov, "if you eliminate accident, as I think you properly do."

"Then I must consider what grounds there might be for supporting both hypotheses. As I discard as utterly worthless all the suggestions in the newspapers, I must suppose that Mr. Strobel had enemies, and that these enemies were powerful enough either to abduct him in broad day on a crowded thoroughfare, or cause him such sudden fear that he felt obliged to go into hiding."

Again was Poubalov surprised, for he could not himself have reasoned more clearly, or have stated his conclusions more concisely; but he simply nodded gravely, expressing neither convictions or emotions. Clara wished that he would speak. She had expressed her thoughts as they came to her there in Mrs. White's sitting room. It was thinking aloud rather than a statement of previously formed conclusions. Now she saw to just what end her arguments were bringing her, and she almost shrank from it. Summoning her utmost resolution she looked straight at the sombre face of the Russian and added:

"I have no knowledge of Ivan's enemies, Mr. Poubalov; isn't it possible that you can give some information on that phase of the case?"

"Yes, it is," replied Poubalov, without hesitation. Then he paused a moment before he continued: "Were not the case so serious and for you so distressing, I should feel that I must compliment you on your unusual faculty for analyzing a situation. Far from taking offense at your continued suspicion of me, I am really pleased."

"I have not said that I suspected you."