“Will you promise not to print in your paper what I tell you?”

“No, I cannot promise that!”

“Still, the newspaper doesn’t matter,” continued the scientist. “The story would be valueless to you, because no one would believe it. There is little use in printing a story in a newspaper that will be laughed at, is there? However, I think you are honest, otherwise you would have promised not to print a line of what I tell you, and then I should have known you were lying. It was as easy to promise that as to say you would not tell the Director of Police. I thought at first some scientific rival had sent you here to play the spy on me, and learn what I was doing. I assure you I heard nothing about the explosion you speak of, yet I was certain it had occurred somewhere along that line which I drew on the map. I had hoped it was not serious, and begun to believe it was not. The anxiety of the last month has nearly driven me insane, and, as you say quite truly, my actions have been childish.” The old man in his excitement had risen from his chair and was now pacing up and down the room, running his fingers distractedly through his long white hair, and talking more to himself than to his auditor.

Jennie had edged her chair nearer to the door, and had made no protest against his rising, fearing to interrupt his flow of talk and again arouse his suspicions.

“I have no wish to protect my inventions. I have never taken out a patent in my life. What I discover I give freely to the world, but I will not be robbed of my reputation as a scientist. I want my name to go down to posterity among those of the great discoverers. You talked just now of going to the police and telling them what you knew. Foolish creature! You could no more have gone to the central police office without my permission, or against my will, than you could go to the window and whistle back those bits of paper I scattered to the winds. Before you reached the bottom of the stairs I could have laid Vienna in a mass of ruins. Yes, I could in all probability have blown up the entire Empire of Austria. The truth is, that I do not know the limit of my power, nor dare I test it.”

“Oh, this is a madman!” thought Jennie, as she edged still nearer to the door. The old man paused in his walk and turned fiercely upon her.

“You don’t believe me?” he said.

“No, I do not,” she answered, the colour leaving her cheeks.

The aged wizard gave utterance to a hideous chuckle. He took from one of his numerous shelves a hammer-head without the handle, and for a moment Jennie thought he was going to attack her; but he merely handed the metal to her and said,—

“Break that in two. Place it between your palms and grind it to powder.”