He was older and stouter than his brother-in-arms, Henri de Prerolles, and a wound he had received at Plevna slightly impeded his movements, so that he was unable to display the same activity in the dance as the other waltzers, and contented himself with moving a ‘trois temps’, in an evolution less in harmony with the brilliancy of the music.

Henri, on the contrary, who had been a familiar friend of the Austrian ambassador at the time when the Princess de Metternich maintained a sort of open ballroom for her intimates, had learned, in a good school, all the boldness and elegance of the Viennese style of dancing.

But he sat immovable, as did also Edmond Delorme, because of the lack of partners; and, not wishing to take the second place after Lenaieff, his rival, he would not for the world abandon his role of spectator, unless some one forced him to it.

“Suppose we have a cotillon figure, in order to change partners?” said Valentine suddenly, during a pause, after she had thanked her partner.

And, to set the example, she took, from a basket of flowers, a rosebud, which she offered to Henri.

“Will you take a turn with me?” she said, with the air of the mistress of the house, who shows equal courtesy to all her guests.

“A deux temps?” he asked, fastening the rosebud in his buttonhole.

“Yes, I prefer that,” she replied.

He passed his arm around her waist, and they swept out upon the polished floor, he erect and gallant, she light and supple as a gazelle, her chin almost resting upon her left hand, which lay upon her partner’s shoulder, her other hand clasped in his.

At times her long train swirled in a misty spiral around her, when they whirled about in some corner; then it spread out behind her like a great fan when they swept in a wide curve from one end of the gallery to the other.

During the feverish flight which drew these two together, their breasts touched, the bosom of the enchantress leaned against the broad chest of the vigorous soldier, her soft hair caressed his cheek, he inhaled a subtle Perfume, and a sudden intoxication overflowed his heart, which he had tried to make as stern and immobile as his face.

“How well you waltz!” murmured Zibeline, in his ear.

“I am taking my revenge for my defeat on the ice,” he replied, clasping her a little closer, in order to facilitate their movements.

“The prisoners you take must find it very difficult to escape from your hands,” she said, with a touch of malice.

“Does that mean that already you wish to reclaim your liberty?”

“Not yet—­unless you are fatigued.”

“Fatigued!  I should like to go thus to the end of the world!”

“And I, too,” said Zibeline, simply.

By common consent the other waltzers had stopped, as much for the purpose of observing these two as for giving them more space, while the wearied musicians scraped away as if it were a contest who should move the faster, themselves or the audacious couple.