“Very good,” said the doctor, somewhat to my surprise. “That will satisfy us amply. Write the agreement and I will at once begin work upon the body of Prince Kai. If I am to succeed no time must be lost.”

“And the price?” asked the mandarin.

“Ten thousand taels, and all expenses of the journey.”

“It is agreed.”

Mai Lo composedly arose and went to the state cabin, which he entered.

“It’s just as well to accept his terms,” said the doctor to me, in a low voice. “What we want is to impress him with the fact that we rely upon his protection. Then we’ll watch him for evidences of treachery and be upon our guard.”

“Would the Emperor behead him if he played false?” I asked, thoughtfully.

“Assuredly. Tsi An doesn’t want any trouble with foreign countries just now, and when we speak of the Emperor we really mean the old dowager, Tsi An.”

Presently the Chinaman returned and handed the doctor a paper closely written upon in Chinese characters. I looked at the document rather suspiciously, being unable to read it; but the doctor promptly folded it and put it in his pocket-book. Then he said in a brisk and business-like tone:

“Take me to the Prince, Mai Lo. I must get to work.”