The inner room was in darkness and the fume-laden air almost unbreathable. A dull and regular moaning sound proceeded from the corner where the bed was situated, but of the contents of the place and of its other occupant or occupants Kerry had no more than a hazy idea. His imagination supplied those details which he had failed to observe. Mrs. Monte Irvin, in a dying condition, lay upon the bed, and someone or some thing crouched on the divan behind Kerry as he lay stretched upon the matting-covered floor. His wrists, tied behind him, gave him great pain; and since his ankles were also fastened and the end of the rope drawn taut and attached to that binding his wrists, he was rendered absolutely helpless. For one of his fiery temperament this physical impotence was maddening, and because his own handkerchief had been tied tightly around his head so as to secure between his teeth a wooden stopper of considerable size which possessed an unpleasant chemical taste and smell, even speech was denied him.
 
How long he had lain thus he had no means of judging accurately; but hours—long, maddening hours—seemed to have passed since, with the muzzle of Sin Sin Wa's Mauser pressed coldly to his ear, he had submitted willy-nilly to the adroit manipulations of Mrs. Sin. At first he had believed, in his confirmed masculine vanity, that it would be a simple matter to extricate himself from the fastenings made by a woman; but when, rolling him sideways, she had drawn back his heels and run the loose end of the line through the loop formed by the lashing of his wrists behind him, he had recognized a Chinese training, and had resigned himself to the inevitable. The wooden gag was a sore trial, and if it had not broken his spirit it had nearly caused him to break an artery in his impotent fury.
 
Into the darkened inner chamber Sin Sin Wa had dragged him, and there Kerry had lain ever since, listening to the various sounds of the place, to the coarse voice, often raised in anger, of the Cuban-Jewess, to the crooning tones of the imperturbable Chinaman. The incessant moaning of the woman on the bed sometimes became mingled with another sound more remote, which Kerry for long failed to identify; but ultimately he concluded it to be occasioned by the tide flowing under the wharf. The raven was silent, because, imprisoned in his wicker cage, he had been placed in some dark spot below the counter. Very dimly from time to time a steam siren might be heard upon the river, and once the thudding of a screw-propeller told of the passage of a large vessel along Limehouse Reach.
 
In the eyes of Mrs. Sin Kerry had read menace, and for all their dark beauty they had reminded him of the eyes of a cornered rat. Beneath the contemptuous nonchalance which she flaunted he read terror and remorse, and a foreboding of doom—panic ill repressed, which made her dangerous as any beast at bay. The attitude of the Chinaman was more puzzling. He seemed to bear the Chief Inspector no personal animosity, and indeed, in his glittering eye, Kerry had detected a sort of mysterious light of understanding which was almost mirthful, but which bore no relation to Sin Sin Wa's perpetual smile. Kerry's respect for the one-eyed Chinaman had increased rather than diminished upon closer acquaintance. Underlying his urbanity he failed to trace any symptom of apprehension. This Sin Sin Wa, accomplice of a murderess self-confessed, evident head of a drug syndicate which had led to the establishment of a Home office inquiry—this badly “wanted” man, whose last hiding-place, whose keep, was closely invested by the agents of the law, was the same Sin Sin Wa who had smilingly extended his wrists, inviting the manacles, when Kerry had first made his acquaintance under circumstances legally very different.
 
Sometimes Kerry could hear him singing his weird crooning song, and twice Mrs. Sin had shrieked blasphemous execrations at him because of it. But why should Sin Sin Wa sing? What hope had he of escape? In the case of any other criminal Kerry would have answered “None,” but the ease with which this one-eyed singing Chinaman had departed from his abode under the very noses of four detectives had shaken the Chief Inspector's confidence in the efficiency of ordinary police methods where this Chinese conjurer was concerned. A man who could convert an elaborate opium house into a dirty ruin in so short a time, too, was capable of other miraculous feats, and it would not have surprised Kerry to learn that Sin Sin Wa, at a moment's notice, could disguise himself as a chest of tea, or pass invisible through solid walls.
 
For evidence that Seton Pasha or any of the men from Scotland Yard had penetrated to the secret of Sam Tuk's cellar Kerry listened in vain. What was about to happen he could not imagine, nor if his life was to be spared. In the confession so curiously extorted from Mrs. Sin by her husband he perceived a clue to this and other mysteries, but strove in vain to disentangle it from the many maddening complexities of the case.
 
So he mused, wearily, listening to the moaning of his fellow captive, and wondering, since no sign of life came thence, why he imagined another presence in the stuffy room or the presence of someone or of some thing on the divan behind him. And in upon these dreary musings broke an altercation between Mrs. Sin and her husband.
 
“Keep the blasted thing covered up!” she cried hoarsely.
 
“Tling-a-Ling wantchee catchee bleathee sometime,” crooned Sin Sin Wa.
 
“Hello, hello!” croaked the raven drowsily. “Smartest—smartest—smartest leg.”
 
“You catchee sleepee, Tling-a-Ling,” murmured the Chinaman. “Mrs. Sin no likee you palaber, lo!”
 
“Burn it!” cried the woman, “burn the one-eyed horror!”
 
But when, carrying a lighted lantern, Sin Sin Wa presently came into the inner room, he smiled as imperturbably as ever, and was unmoved so far as external evidence showed.
 
Sin Sin Wa set the lantern upon a Moorish coffee-table which once had stood beside the divan in Mrs. Sin's sanctum at the House of a Hundred Raptures. A significant glance—its significance an acute puzzle to the recipient—he cast upon Chief Inspector Kerry. His hands tucked in the loose sleeves of his blouse, he stood looking down at the woman who lay moaning on the bed; and:
 
“Tchee, tchee,” he crooned softly, “you hate no catchee die, my beautiful. You sniffee plenty too muchee 'white snow,' hoi, hoi! Velly bad woman tly makee you catchee die, but Sin Sin Wa no hate got for killee chop. Topside pidgin no good enough, lo!”
 
His thick, extraordinary long pigtail hanging down his back and gleaming in the rays of the lantern, he stood, head bowed, watching Rita Irvin. Because of his position on the floor, Mrs. Irvin was invisible from Kerry's point of view, but she continued to moan incessantly, and he knew that she must be unconscious of the Chinaman's scrutiny.
 
“Hurry, old fool!” came Mrs. Sin's harsh voice from the outer room. “In ten minutes Ah Fung will give the signal. Is she dead yet—the doll-woman?”
 
“She hate no catchee die,” murmured Sin Sin Wa, “She still vella beau............