"It would seem, Dr. Petrie," he said calmly, "that you are fated to remain here as my guest. You will have the felicity of residing beneath the same roof with Karamaneh."

The card was the Knave of Diamonds.

Conscious of a sudden excitement, I s.n.a.t.c.hed up the card from my knee. It was the Queen of Hearts! For a moment I tasted exultation, then I tossed it upon the floor. I was not fool enough to suppose that the Chinese Doctor would pay his debt of honor and release me.

"Your star above mine," said Fu-Manchu, his calm unruffled. "I place myself in your hands, Sir Baldwin."

a.s.sisted by his unemotional compatriot, Fu-Manchu discarded the yellow robe, revealing himself in a white singlet in all his gaunt ugliness, and extended his frame upon the operating-table.

Li-King-Su ignited the large lamp over the head of the table, and from his case took out a trephine.

"Other points for your guidance from my own considerable store of experience"--Fu-Manchu was speaking--"are written out clearly in the notebook which lies upon the table...."

His voice, now, was toneless, emotionless, as though his part in the critical operation about to be performed were that of a spectator. No trace of nervousness, of fear, could I discern; his pulse was practically normal.

How I shuddered as I touched his yellow skin! how my very soul rose up in revolt! ...

"There is the bullet!--quick! ... Steady, Petrie!"

Sir Baldwin Frazer, keen, cool, deft, was metamorphosed, was the enthusiastic, brilliant surgeon whom I knew and revered, and another than the nerveless captive who, but a few minutes ago, had stared, panic-stricken, at Dr. Fu-Manchu.

Although I had met him once or twice professionally, I had never hitherto seen him operate; and his method was little short of miraculous. It was stimulating, inspiring. With unerring touch he whittled madness, death, from the very throne of reason, of life.

Now was the crucial moment of his task ... and, with its coming, every light in the room suddenly failed--went out!

"My G.o.d!" whispered Frazer, in the darkness, "quick! quick! lights!

a match!--a candle!--something, anything!"

There came a faint click, and a beam of white light was directed, steadily, upon the patient's skull. Li-King-Su--unmoved--held an electric torch in his hand!

Frazer and I set to work, in a fierce battle to fend off Death, who already outstretched his pinions over the insensible man--to fend off Death from the arch-murderer, the enemy of the white races, who lay there at our mercy! ...

"It seems you want a pick-me-up!" said Zarmi. Sir Baldwin Frazer collapsed into the cane arm-chair. Only a matting curtain separated us from the room wherein he had successfully performed perhaps the most wonderful operation of his career.

"I could not have lasted out another thirty seconds, Petrie!" he whispered. "The events which led up to it had exhausted my nerves and I had no reserve to call upon. If that last ..."

He broke off, the sentence uncompleted, and eagerly seized the tumbler containing brandy and soda, which the beautiful, wicked-eyed Eurasian pa.s.sed to him. She turned, and prepared a drink for me, with the insolent _insouciance_ which had never deserted her.

I emptied the tumbler at a draught.

Even as I set the gla.s.s down I realized, too late, that it was the first drink I had ever permitted to pa.s.s my lips within an abode of Dr. Fu-Manchu....

I started to my feet.

"Frazer!" I muttered--"we've been drugged! we ..."

"You sit down," came Zarmi's husky voice, and I felt her hands upon my breast, pushing me back into my seat. "You very tired ... you go to sleep...."

"Petrie! Dr. Petrie!"

The words broke in through the curtain of unconsciousness. I strove to arouse myself. I felt cold and wet. I opened my eyes--and the world seemed to be swimming dizzily about me. Then a hand grasped my arm, roughly.

"Brace up! Brace up, Petrie--and thank G.o.d you are alive! ..."

I was sitting beside Sir Baldwin Frazer on a wooden bench, under a leafless tree, from the ghostly limbs whereof rain trickled down upon me! In the gray light, which, I thought, must be the light of dawn, I discerned other trees about us and an open expanse, tree-dotted, stretching into the misty grayness.

"Where are we?" I muttered--"where ..."

"Unless I am greatly mistaken," replied my bedraggled companion, "and I don't think I am, for I attended a consultation in this neighborhood less than a week ago, we somewhere on the west side of Wandsworth Common!"

He ceased speaking; then uttered a suppressed cry. There came a jangling of coins, and dimly I saw him to be staring at a canvas bag of money which he held.

"Merciful heavens!" he said, "am I mad--or did I _really_ perform that operation? And can this be my fee? ..."

I laughed loudly, wildly, plunging my wet, cold hands into the pockets of my rain-soaked overcoat. In one of them, my fingers came in contact with a piece of cardboard. It had an unfamiliar feel, and I pulled it out, peering at it in the dim light.

"Well, I'm d.a.m.ned!" muttered Frazer--"then I'm not mad, after all!"

It was the Queen of Hearts!

CHAPTER XIX

"ZAGAZIG"

Fully two weeks elapsed ere Nayland Smith's arduous labors at last met with a slight reward. For a moment, the curtain of mystery surrounding the Si-Fan was lifted, and we had a glimpse of that organization's elaborate mechanism. I cannot better commence my relation of the episodes a.s.sociated with the Zagazig's cryptogram than from the moment when I found myself bending over a prostrate form extended upon the table in the Inspector's room at the River Police Depot. It was that of a man who looked like a Lascar, who wore an ill-fitting slop-shop suit of blue, soaked and stained and clinging hideously to his body.

His dank black hair was streaked upon his low brow; and his face, although it was notable for a sort of evil leer, had a.s.sumed in death another and more dreadful expression.

Asphyxiation had accounted for his end beyond doubt, but there were marks about his throat of clutching fingers, his tongue protruded, and the look in the dead eyes was appalling.

"He was amongst the piles upholding the old wharf at the back of the Joy-Shop?" said Smith tersely, turning to the police officer in charge.

"Exactly" was the reply. "The in-coming tide had jammed him right up under a cross-beam."

"What time was that?'

"Well, at high tide last night. Hewson, returning with the ten o'clock boat, noticed the moonlight glittering upon the knife."