I felt myself flush; for this encounter in the foyer of an hotel, with many curious onlookers, was like to prove embarrassing if my beautiful acquaintance persisted in her attitude. I fully realized what construction would be put upon my presence there, and foresaw that forcible and ignominious ejection must be my lot if I failed to establish my right to address her.

She turned away, and crossed in the direction of the staircase. A sunbeam sought out a lock of hair that strayed across her brow, and kissed it to a sudden glow like that which lurks in the heart of a blush rose.

That wonderful sheen, which I had never met with elsewhere in nature, but which no artifice could lend, served to remove my last frail doubt which had survived the evidence of the violet eyes. I had been deceived by no strange resemblance; this was indeed the woman who had been the harbinger of Professor Deeping's death. In three strides I was beside her again. Curious glances were set upon me, and I saw a servant evidently contemplating approach; but I ignored all save my own fixed purpose.

"You must listen to what I have to say!" I whispered. "If you decline, I shall have no alternative but to call in the detective who holds a warrant for your arrest!"

She stood quite still, watching me coolly. "I suppose you would wish to avoid a scene?" I added.

"You have already made me the object of much undesirable attention," she replied scornfully. "I do not need your assurance that you would disgrace me utterly! You are talking nonsense, as you must be aware — unless you are insane. But if your object be to force your acquaintance upon me, your methods are novel, and, under the circumstances, effective. Come, sir, you may talk to me — for three minutes!"

The musical voice had lost nothing of its imperiousness, but for one instant the lips parted, affording a fleeting glimpse of pearl beyond the coral.

Her sudden change of front was bewildering. Now, she entered the lift and I followed her. As we ascended side by side I found it impossible to believe that this dainty white figure was that of an associate of the Hashishin, that of a creature of the terrible Hassan of Aleppo. Yet that she was the same girl who, a few days after my return from the East, had shown herself conversant with the plans of the murderous fanatics was beyond doubt. Her accent on that occasion clearly had been assumed, with what object I could not imagine. Then, as we quitted the lift and entered a cosy lounge, my companion seated herself upon a Chesterfield, signing to me to sit beside her.

As I did so she lay back smiling, and regarding me from beneath her black lashes. Thus, half veiled, her great violet eyes were most wonderful.

"Now, sir," she said softly, "explain yourself."