“Oh, I don’t know,” was the reply. “I have read enough about Russia and St. Petersburg to believe that all the nihilists and anarchists are not dead yet.”

“Well, I think you have this one spotted wrong. Look at him. He wouldn’t have the nerve to carry a bomb, much less throw one.”

“You can’t judge a man’s nerve by his looks,” said Jack quietly.

“Perhaps not always,” agreed Frank. “But I believe I am right in this case, at least.”

“All right, but we’ll have to look sharp or he’ll lose us. There he goes around the corner. Hurry up.”

The lads quickened their steps and rounded the corner just in time to see the man they were pursuing disappear in a little shop. Approaching closer they perceived the place to be a tobacconist’s, and they also entered.

The shop keeper eyed them keenly, and to avoid any suspicion Frank bought a package of cigarettes. Then they went out.

“Did you see him?” asked Jack.

“I thought I caught a glimpse of him in the little room in the rear of the shop,” replied Frank.

“I am sure it was he,” agreed Jack. “He poked his head out just as I glanced in that direction.”