"He is not sufficiently out of favour yet," he said. "Go on, man, you have something in your mind."

Boolba edged closer.

"Suppose the Grand Duke or the Grand Duchess were involved in some conspiracy against the Imperial House?" he said, speaking rapidly. "Suppose, on evidence which could not be disputed, such as the evidence of the London police, it was proved that either the Grand Duke or his daughter was in league with an anarchist society, or was attending their meetings—does your Excellency see?"

"I see," said Serganoff, "but they do not attend meetings."

Boolba hesitated.

"Yet," he said, speaking slowly, "I would guarantee that I could bring the Grand Duchess Irene to such a meeting, and that I could arrange for the place to be raided whilst she was there."

Serganoff put down his orange stick and eyed the other keenly.

"You have brains, Boolba," he said. "Some day I shall bring you to St. Petersburg and place you on my staff—if you do not know too much."

He paced the apartment, his hands clasped behind his back.