"The only possible explanation of this person's extraordinary and incredible conduct," he said, "is, that he must be mad--and his secretary equally so. He made my acquaintance, unasked, on a glass seat on the King's Road; invited me to go on his coach to Lewes; volunteered to buy a valuable picture of me; and then, at the last moment, unaccountably gave me in charge on this silly and preposterous trumped-up accusation. I demand a summons for false imprisonment." Suddenly it began to dawn upon us that the tables were turned. By degrees it came out that we had made a mistake. Dr. Polperro was really the person he represented himself to be, and had been always. His picture, we found out, was the real Maria Vanrenen, and a genuine Rembrandt, which he had merely deposited for cleaning and restoring at the suspicious dealer's. Sir J. H. Tomlinson had been imposed upon and cheated by a cunning Dutchman; _his_ picture, though also an undoubted Rembrandt, was _not_ the Maria, and was an inferior specimen in bad preservation. The authority we had consulted turned out to be an ignorant, self-sufficient quack. The Maria, moreover, was valued by other experts at no more than five or six thousand guineas. Charles wanted to cry off his bargain, but Dr. Polperro naturally wouldn't hear of it. The agreement was a legally binding instrument, and what passed in Charles's mind at the moment had nothing to do with the written contract. Our adversary only consented to forego the action for false imprisonment on condition that Charles inserted a printed apology in the Times, and paid him five hundred pounds compensation for damage to character. So that was the end of our well-planned attempt to arrest the swindler. Not quite the end, however; for, of course, after this, the whole affair got by degrees into the papers. Dr. Polperro, who was a familiar person in literary and artistic society, as it turned out, brought an action against the so-called expert who had declared against the genuineness of his alleged Rembrandt, and convicted him of the grossest ignorance and misstatement. Then paragraphs got about. The World showed us up in a sarcastic article; and Truth, which has always been terribly severe upon Sir Charles and all the other South Africans, had a pungent set of verses on "High Art in Kimberley." By this means, as we suppose, the affair became known to Colonel Clay himself; for a week or two later my brother-in-law received a cheerful little note on scented paper from our persistent sharper. It was couched in these terms:-- "Oh, you innocent infant! "Bless your ingenuous little heart! And did it believe, then, it had positively caught the redoubtable colonel? And had it ready a nice little pinch of salt to put upon his tail? And is it true its respected name is Sir Simple Simon? How heartily we have laughed,