“I have worked diligently all these months, and have solved the mystery of what you really are,” I said.

“Then that’s sufficient for you, I suppose;” and his thin lips snapped together.

“No, it is not sufficient. To attempt to conceal anything further is useless. I desire from you a statement of the whole truth.”

“And condemn myself?”

“You will not condemn yourself if you are perfectly frank with us,” I assured him.

There was a long silence. His small eyes darted an evil look at La Gioia, who stood near him, erect and triumphant. Suddenly he answered, in a tone hard and unnatural—

“If you know all, as you declare, there is little need to say much about my own association with Tattersett. Of the latter the police are well aware that he is one of the most expert forgers in Europe. It was he and I who obtained thirty thousand pounds from the Crédit Lyonnais in Bordeaux, and who, among other little matters of business, tricked Parr’s for twenty thousand. At Scotland Yard they have all along suspected us, but have never obtained sufficient evidence to justify arrest. We took very good care of that, for after ten years’ partnership we were not likely to blunder.” He spoke braggingly, for all thieves seem proud of the extent of their frauds.

“But you want to know about your marriage, eh?” he went on. “Well, to tell the truth, it happened like this. The Major, who had dabbled in the byways of chemistry as a toxicologist, held the secret of a certain most deadly poison—one that was used by the ancients a thousand years ago—and conceived by its means a gigantic plan of defrauding life insurance companies. About that time he accidentally met Miss Wynd, and cultivated her acquaintance because, being extremely handsome, she would be useful as a decoy. The secret marriage was accomplished, but just as the elaborate plan was to be put into operation he made an astounding discovery.”

“What was the reason of the marriage?” I inquired breathlessly.

He paused in hesitation.