He wondered at himself.

How could he ever have forgotten?

"That scoundrel!" he thought. "Alice in his hands? This is terrible, but it explains her disappearance, all right."

Meanwhile the talk was going right on.

"Have it your own way, Mr. Lung," said the doctor, "but you want to decide. Do I work or don't I work? Which?"

"I will give up no more than I said. I won't be swindled."

"Very well. Then I won't do anything about your Chinese princess. Your opium will be delivered. I am going now. Good-night."

"Go," replied Lung. "I shall not forget this, doctor."

"No, I don't think you will," replied the doctor, and Harry heard him leave the room.

Instantly Ah Lung drew aside the curtain.