"Dr. Helfmann," she corrected.

"I gave him that degree, madame," said Aksakoff, dryly. "Helfmann is one of our secret police."

"Then you had no business to introduce such a creature into my rooms," said Leah, angrily.

"Pardon, the crime is twelve months old. To proceed. Katinka knew the real business of this man, and may have learned the truth, or enough of it, to make her journey to Siberia. Tomsk--yes, Tomsk!" He leaned his stick on the ground, his hands on the stick, and stared vaguely at the leafless trees. "Assuredly Tomsk."

"Is Dr. Demetrius there?"

Aksakoff nodded vaguely. "I wish you a good day, madame," said he, and turned away abruptly without raising his hat. The omission of a usual courtesy either betrayed his absence of mind, or showed what he truly thought of the Duchess of Pentland.

Leah, having a tender conscience, chose to assign the latter reason, and resolved to cut the man if he should dare to speak to her again. "But what can you expect from the Russian bear?" she said, resuming her walk.

It ended in Curzon Street. She and Jim rented the ducal residence to a wealthy American, and retained the smaller mansion, on the plea that their happiest days had been spent there. This excuse was, of course, a lie, but every one believed it, and said how touching it was to see that a Duke and a Duchess could be so human. And, after all, Leah really did like the cot of her humble days. It was pleasant to think that she had been "Lady Jim of Curzon Street," and had taken her title in that way, just like a peer in his own right. Sometimes she regretted that she was simply a Duchess, and not Lady Jim as of old. Then she had enjoyed life; now she found it excruciatingly dull. And it was all the fault of Demetrius, who had taught her more exciting methods of passing time than by killing it.

When in the drawing-room she recalled the conversation with Aksakoff, and began to think that there were troublesome days ahead. If Katinka had learned the truth through Helfmann, she was assuredly hovering round Tomsk in the hope of aiding Demetrius to escape. Should she be successful, as so determined girl might easily be, the man would return to this Island of Refuge breathing out vengeance of the direst. Leah had often contemplated a possible escape, followed by a certain return, and the contemplation invariably produced a shudder. Now that there seemed to be some ground that the man who knew all and would tell all might come to England, she was conscious of rising spirits. The feeling puzzled her.

"I ought to be shaking in my shoes," she reflected, "but I feel rather pleased than otherwise. I am spoilt for a life of cotton-wool and policemen at every corner. Danger is the sole thing which amuses me. That must be the explanation of my feeling jolly. I expect the heroes and heroines of cheap novels feel the same when they settle to a dull marriage after pages of hair-breadth escapes."