He ran to the door, unlocked it, and was no more seen.

IV.

The lady was aged twenty-seven or so; of medium height, and slim, with a plain, very intelligent and expressive face, lighted by courageous, grey eyes and crowned with loose, abundant, fluffy hair. Perhaps it was the fluffy hair, perhaps it was the mouth that twitched as she dropped the revolver—who can say?—but the whole atmosphere of the rose-lit chamber was suddenly changed. The incalculable had invaded it.

“You seem surprised, Miss Fincastle,” said the possessor of the bank-notes, laughing gaily.

“Surprised!” echoed the lady, controlling that mouth. “My dear Mr. Thorold, when, strictly as a journalist, I accepted your invitation, I did not anticipate this sequel; frankly I did not.”

She tried to speak coldly and evenly, on the assumption that a journalist has no sex during business hours. But just then she happened to be neither less nor more a woman than a woman always is.

“If I have had the misfortune to annoy you——!” Thorold threw up his arms in gallant despair.

“Annoy is not the word,” said Miss Fincastle, nervously smiling. “May I sit down? Thanks. Let us recount. You arrive in England, from somewhere, as the son and heir of the late Ahasuerus Thorold, the New York operator, who died worth six million dollars. It becomes known that while in Algiers in the spring you stayed at the Hôtel St. James, famous as the scene of what is called the ‘Algiers Mystery,’ familiar to English newspaper-readers since last April. The editor of my journal therefore instructs me to obtain an interview with you. I do so. The first thing I discover is that, though an American, you have no American accent. You explain this by saying that since infancy you have always lived in Europe with your mother.”

“But surely you do not doubt that I am Cecil Thorold!” said the man. Their faces were approximate over the table.

“Of course not. I merely recount. To continue. I interview you as to the Algerian mystery, and get some new items concerning it. Then you regale me with tea and your opinions, and my questions grow more personal. So it comes about that, strictly on behalf of my paper, I inquire what your recreations are. And suddenly you answer: ‘Ah! My recreations! Come to dinner to-night, quite informally, and I will show you how I amuse myself!’ I come. I dine. I am stuck behind that screen and told to listen. And—and—the millionaire proves to be nothing but a blackmailer.”