“Do you hear me, sir?” asked the doctor, now thoroughly roused.

“Yes, sir.”

“Then why don’t you answer at once?”

“I would not answer the question if I could,” said the Dux defiantly.

Dr Plummer stared at the boy as if he had been a wild beast.

“How dare you say such a thing to me?” he demanded. “You heard my question. Have you the slightest grounds for suspecting any one?”

The Dux bit his lips and remained silent.

“Do you hear, Tempest?”

No reply.

“Go to your seat, sir. I will speak to you presently.”