Bending over a case containing scarabs and other amulets, many set in rings, he began to read the inscriptions upon the little tickets placed beneath some of them; but none answered to the description, neither the ticketed nor the unticketed. A second case he examined with like results. But on passing to a third, in an angle near the door, his gaze immediately lighted upon a gold ring set with a strange green stone, engraved in a peculiar way. It bore no ticket, yet as Robert Cairn eagerly bent over it, he knew, beyond the possibility of doubt, that this was the ring of the Witch-Queen. Where had he seen it, or its duplicate? With his eyes fixed upon the gleaming stone, he sought to remember. That he had seen this ring before, or one exactly like it, he knew, but strangely enough he was unable to determine where and upon what occasion. So, his hands resting upon the case, he leant, peering down at the singular gem. And as he stood thus, frowning in the effort of recollection, a dull white hand, having long tapered fingers, glided across the glass until it rested directly beneath his eyes. Upon one of the slim fingers was an exact replica of the ring in the case! Robert Cairn leapt back with a stifled exclamation. Antony Ferrara stood before him! "The Museum ring is a copy, dear Cairn," came the huskily musical, hateful voice; "the one upon my finger is the real one." Cairn realised in his own person, the literal meaning of the overworked phrase, "frozen with amazement." Before him stood the most dangerous man in Europe; a man who had done murder and worse; a man only in name, a demon in nature. His long black eyes half-closed, his perfectly chiselled ivory face expressionless, and his blood-red lips parted in a mirthless smile, Antony Ferrara watched Cairn--Cairn whom he had sought to murder by means of hellish art. Despite the heat of the day, he wore a heavy overcoat, lined with white fox fur. In his right hand--for his left still rested upon the case--he held a soft hat. With an easy nonchalance, he stood regarding the man who had sworn to kill him, and the latter made no move, uttered no word. Stark amazement held him inert. "I knew that you were in the Museum, Cairn," Ferrara continued, still having his basilisk eyes fixed upon the other from beneath the drooping lids, "and I called to you to join me here." Still Cairn did not move, did not speak. "You have acted very harshly towards me in the past, dear Cairn; but because my philosophy consists in an admirable blending of that practised in Sybaris with that advocated by the excellent Zeno; because whilst I am prepared to make my home in a Diogenes' tub, I, nevertheless, can enjoy the fragrance of a rose, the flavour of a peach--" The husky voice seemed to be hypnotising Cairn; it was a siren's voice, thralling him.