Upon this Mr. Monk Duchemin concentrated close attention, satisfied that he had here to do with an extraordinary personality, if not one unique.

Mr. Whitaker Monk might have been any age between thirty-five and fifty-five, so non-committal was that lantern-jawed countenance of a droll, with its heavy, black, eloquent eyebrows, its high and narrow forehead merging into an extensive bald spot fringed with greyish hair, its rather small, blue, illegible eyes, its high-bridged nose and prominent nostrils, its wide and thin-lipped mouth, its rather startling pallor. Taller by a head than anybody in the room except Duchemin, his figure was remarkably thin, yet not ill-proportioned. Neither was Mr. Monk ill at ease or ungraceful in his actions. Clothed in that extravagantly correct costume--correct, at least, for a drawing-room, if never for motoring--he had all the appearance of a comedian fresh from the hands of his dresser. One naturally expected of him mere grotesqueries--and found simply the courteous demeanour of a gentleman of the world. So much for externals. But what more? Nature herself had cast Mr. Monk in the very mould of a masquerader. What manner of man was hidden behind the mask? His words and deeds alone would tell; Duchemin could only weigh the one and await the other.

In the meantime Mr. Monk was sketching rapidly for the benefit of Madame de Sévénié the excuse for his present plight.

A chance meeting at Monte Carlo, he said, with his old friends, the Comte et Comtesse de Lorgnes, had resulted in their yielding to his insistence that they tour with him back to Paris by this roundabout way.

"A whim of my age, madame." Somehow the nas