The appearance at their hotel of the cavalry-officer from Siena was a
not wholly agreeable surprise; but even after the handsome Marquis had
been introduced to Undine, and had whirled her through an evening's
dances, Ralph was not seriously disturbed. Husband and wife had grown
closer to each other since they had come to St. Moritz, and in the brief
moments she could give him Undine was now always gay and approachable.
Her fitful humours had vanished, and she showed qualities of comradeship
that seemed the promise of a deeper understanding. But this very hope
made him more subject to her moods, more fearful of disturbing the
harmony between them. Least of all could he broach the subject of money:
he had too keen a memory of the way her lips could narrow, and her eyes
turn from him as if he were a stranger.

It was a different matter that one day brought the look he feared to her
face. She had announced her intention of going on an excursion with Mrs.
Shallum and three or four of the young men who formed the nucleus of
their shifting circle, and for the first time she did not ask Ralph if
he were coming; but he felt no resentment at being left out. He was
tired of these noisy assaults on the high solitudes, and the prospect
of a quiet afternoon turned his thoughts to his book. Now if ever there
seemed a chance of recapturing the moonlight vision...

From his balcony he looked down on the assembling party. Mrs. Shallum
was already screaming bilingually at various windows in the long facade;
and Undine presently came out of the hotel with the Marchese Roviano and
two young English diplomatists. Slim and tall in her trim mountain
garb, she made the ornate Mrs. Shallum look like a piece of ambulant
upholstery. The high air brightened her cheeks and struck new lights
from her hair, and Ralph had never seen her so touched with morning
freshness. The party was not yet complete, and he felt a movement of