Recalling all this I was on the point of ringing for Perkins in order to question him, when something caused me to hesitate.
It was well that I did so. The next moment the double doors of the French window that overlooked the bustling turmoil of Kensington's busiest thoroughfare were flung frantically open and there sprang into the room a young girl whose dazzling beauty was, if possible, heightened by the breathless excitement under which she was labouring.
"Dr. Humdrum," she exclaimed, throwing aside the luxuriant crimson opera cloak that had hitherto concealed the supple perfection of her lithe form, "save me! Help me!" and a look of baffling terror swept across her mobile features.
"Certainly," I stammered, bewildered for the moment by this strange intrusion into the dull routine of my commonplace existence, "but first let me have your name and address for entering into my callers' book."
For reply she dragged from her finger a ring set with a cluster of diamonds that had once, as I was afterwards to learn, graced the crown of an Eastern potentate, and with impulsive generosity flung it into the coal-scuttle.
"Call me Erratica," she murmured, with a slightly different look of terror contorting her lovely features. (And here, for the sake of brevity, I would remark that during the first seven weeks of our strange friendship she either shook with terror or shivered with apprehension whenever she spoke to me or I to her.) "Seek to know no more. Only save me!"
I was at my wits' end. She had already, with a gesture of loathing, hurled out of the window the glass of sal volatile which I had poured out for her, and that exhausted the first-aid remedies with which I was familiar.
"Save you from what?"
