He was just lighting a cigar as I came up, and took no notice of my respectful salute till he had inhaled the tobacco smoke two or three times and expelled it through his nostrils to test the flavor.

At last he turned to me.

“Well?” he said with some sharpness. “What is the matter?”

“I have seen in the passenger list that you are traveling on the service of the Czar,” I answered, “and I venture to place myself at your orders.”

Colonel Menken scowled at me haughtily.

“Does that mean that you want a tip?” he sneered. “Or has some fool ordered you to shadow me?”

“Neither, Colonel,” I replied. “I am a servant of the Czar, like yourself, as you may see from my uniform, and as I have reason to fear that there is an enemy of his majesty on the train, I wish to put you on your guard.”

Menken gave a self-confident smile.

“I am pretty well able to take care of myself, I believe,” he said boastfully. “As for the Nihilists, I no longer believe in their existence. You may point out the man you suspect, if you like, of course.”