That a man like Van Twiller should he fascinated even for an instant by a common circus-girl seems incredible; but it is always the incredible thing that happens. Besides, Mademoiselle Olympe was not a common circus-girl; she was a most daring and startling gymnaste, with a beauty and a grace of movement that gave to her audacious performance almost an air of prudery. Watching her wondrous dexterity and pliant strength, both exercised without apparent effort, it seemed the most natural proceeding in the world that she should do those unpardonable things. She had a way of melting from one graceful posture into another like the dissolving figures thrown from a stereopticon. She was a lithe, radiant shape out of the Grecian mythology, now poised up there above the gaslights, and now gleaming through the air like a slender gilt arrow. I am describing Mademoiselle Olympe as she appeared to Van Twiller on the first occasion when he strolled into the theatre where she was performing. To me she was a girl of eighteen or twenty years of age (maybe she was much older, for pearl powder and distance keep these people perpetually young), slightly but exquisitely built, with sinews of silver wire; rather pretty, perhaps, after a manner, but showing plainly the effects of the exhaustive draughts she was making on her physical vitality. Now, Van Twiller was an enthusiast on the subject of calisthenics. "If I had a daughter," Van Twiller used to say, "I wouldn't send her to a boarding school, or a nunnery; I'd send her to a gymnasium for the first five years. Our American women have no physique. They are lilies, pallid, pretty--and perishable. You marry an American woman, and what do you marry? A headache. Look at English girls. They are at least roses, and last the season through." Walking home from the theatre that first night, it flitted through Van Twiller's mind that if he could give this girl's set of nerves and muscles to any one of the two hundred high-bred women he knew, he would marry her on the spot and worship her forever. The following evening he went to see Mademoiselle Olympe again. "Olympe Zabriski," he soliloquized as he sauntered through the lobby--"what a queer name! Olympe is French and Zabriski is Polish. It is her _nom de guerre_, of course; her real name is probably Sarah Jones. What kind of creature can she be in private life, I wonder? I wonder if she wears that costume all the time, and if she springs to her meals from a horizontal bar. Of course she rocks the baby to sleep on the trapeze." And Van Twiller went on making comical domestic tableaux of Mademoiselle Zabriski, like the clever, satirical dog he was, until the curtain rose.