“Good morning, Professor; may I have a little talk with you?”

“Have you come to shoot me?” asked the man, with a terrible glare. He could not forget his recent experience at the cavern, when he must have believed he stood on the very edge of death.

“That depends upon yourself,” was the reply in the same pleasant voice; “I call upon you as a friend, but if you wish me to be an enemy I am prepared.”

“What do you want?”

Throughout the remarkable interview which followed, neither sat down, and Harvey held his place a dozen paces away. This was prudent, for it was uncertain what the crank might attempt. So long as he was held off he could do no harm, for Harvey would forestall his slightest movement. The venomous hatred shown by him toward the youth because of his interference warned the latter to be on the alert, especially during the opening moments of their talk.

“I have a few words to say to you, Professor; are you willing to listen?”

“Say what you please, but if you had a grain of sense you would know better than to place yourself in my power.”

“I haven’t placed myself in your power and don’t intend to do so; don’t forget that. I wish to speak about your trip across the Atlantic.”

“Well?”

“It is too bad that Bohunkus was prevented from going with you, but you will admit that he has no right to leave home without the permission of Mr. Hartley, with whom he lives.”