"Less enlightened, boy!" Dr. Cairn turned his blazing eyes upon him. "More enlightened where the powers of hell were concerned!"

"Then you think—"

"Think! Have I spent half my life in such studies in vain? Did I labour with poor Michael Ferrara in Egypt and learn nothing? Just God! what an end to his labour! What a reward for mine!"

He buried his face in quivering hands.

"I cannot tell exactly what you mean by that, sir," said Robert Cairn; "but it brings me to my question."

Dr. Cairn did not speak, did not move.

"Who is Antony Ferrara?"

The doctor looked up at that; and it was a haggard face he raised from his hands.

"You have tried to ask me that before."

"I ask now, sir, with better prospect of receiving an answer."