On the famous floor, twelve-score couples swung and swayed to the intoxicating rhythms of an unseen orchestra; kaleidoscopic in their amazingly variegated costuming of colour, drifting past the lonely, diabolical little figure, an endless chain of paired anachronisms.

Searching narrowly each fair face that flashed past in another’s arms, he waited with seeming patience.  But the music buzzed in his brain and his toes tingled for it; breathing the warm, voluptuous air, he inhaled hints of a thousand agreeable and exciting scenes; watching, he perceived in perturbation the witchery of a hundred exquisite women.  And a rancorous discontent gnawed at his famished heart.

This was all his by right of birth—­should be his now, but for the blind malice of his sorry destiny. Kismet had favoured him greatly, but too late....

But of a sudden he forgot self-pity and vain repining, in the discovery of the one particular woman swinging dizzily past in the arms of an Incroyable, whose giddy plumage served only to render the more striking her exquisite fairness and the fine simplicity of her costume.

For she was all in the black-and-white uniform of a Blessington shopgirl; black skirt and blouse, stockings and pumps, relieved by showy linen at throat and wrists, with at waist the white patch of a tiny lace-and-linen apron.

Perhaps it was his start of recognition; it may have been the very fixed intensity of his regard; whatever drew it, her gaze veered to his silent and aloof figure, and for an instant his eyes held hers.  At once, to his consternation, the hot blood stained her lovely face from throat to brow; her glance wavered, fell in confusion, then as though by a strong effort of will alone, steadied once more to his.  Nodding with an air of friendly diffidence, she flashed him a strange, perplexing smile; and was swept on and away.

For a thought he checked his breath in stupefaction.  Had she, then, recognised him?  Was it possible that her intuition had been keen enough to pierce his disguise, vizard and all?

But the next moment he could have sworn in chagrined appreciation of his colossal stupidity.  Of course!—­his costume was that worn by Peter Kenny earlier in the evening; and as between Peter and himself, of the same stock, the two were much of a muchness in physique; both, moreover, were red-headed; their points of unlikeness were negligible, given a mask.

So after all, her emotion had been due solely to embarrassment and regret for the pain she had caused poor Peter by refusing his offer of marriage!

Well!...  P. Sybarite drew a long, sane breath, laughed wholesomely at himself, and thereafter had eyes only to keep the girl in sight, however far and involved her wanderings through the labyrinth of the dance.

In good time the music ended; the fluent movement of the dancers subsided with a curious effect of eddying—­like confetti settling to rest; and P. Sybarite left his station by the wall, slipping like quicksilver through the heart of the throng to the far side of the room, where, near a great high window wide to the night, the breathless shopgirl had dropped into a chair.