"He's so darn sure of himself!" grumbled Jack. "He knows what I have on him, but he goes around quite openly in his old black hearse! Shows himself everywhere. Goes on making his blackguardly collections right under my nose. He seems to enjoy playing with me."

"That's a kind of vanity," said Kate. "I have read that criminals often display it. It is that very thing that will surely deliver him into your hands in the end if you bide your time. Some day he is bound to take a chance too many."

Jack began to feel comforted. "I believe I could have him arrested to-morrow if I gave his description to the police," he said.

"Then why don't you?"

He shook his head obstinately. "I've got to do this myself. I've sworn it.—But how does he know I'm not going to turn over my case to the police? He seems to be able to read my mind!"

"Oh, there's no magic in that. He watches you of course, and anybody who knew anything about you must know that you would feel that way."

There was subtle flattery in this, and Jack began to feel warm about the heart once more.

"Well, he hasn't put me out of the game yet, though on this deal he has certainly called all my tricks. The minute I tried to use Mrs. Cleaver he trumped her. He has called the Pitman disguise, and he must know about my connection with Anderson. If he has spotted me coming out of this house, he must have guessed that there is a way through from the hotel. I'll have to think up an entirely new combination."

"How does the situation stand with the anarchists?" asked Kate.

"Nothing new down there since I told you. I am now a full member of the circle that Emil Jansen belonged to, but so far I have not succeeded in establishing 'Mr. B's' connection with it. I know there is a connection, because the murderers of both Ames Benton and Silas Gyde graduated from that circle. I have to move slowly there."