The three withdrew. I divined now what was coming.

"Can you restore Weymouth's sanity?" rapped Smith abruptly. "I cannot save you from the hangman, nor"—his fists clenched convulsively—"would I if I could; but—"

Fu-Manchu fixed his brilliant eyes upon him.

"Say no more, Mr. Smith," he interrupted; "you misunderstand me. I do not quarrel with that, but what I have done from conviction and what I have done of necessity are separated—are seas apart. The brave Inspector Weymouth I wounded with a poisoned needle, in self-defense; but I regret his condition as greatly as you do. I respect such a man. There is an antidote to the poison of the needle."

"Name it," said Smith.

Fu-Manchu smiled again.

"Useless," he replied. "I alone can prepare it. My secrets shall die with me. I will make a sane man of Inspector Weymouth, but no one else shall be in the house but he and I."

"It will be surrounded by police," interrupted Smith grimly.

"As you please," said Fu-Manchu. "Make your arrangements. In that ebony case upon the table are the instruments for the cure. Arrange for me to visit him where and when you will—"

"I distrust you utterly. It is some trick," jerked Smith.