She is Fraulein Arpent.

The Ewalts brought her as governess from Paris, don't you remember?
They sent the girls to Bryn Mawr last week and turned her adrift, almost penniless.

She wished to go back to France.

I engaged her as assistant chaperone for the season." Mrs.Waldeaux's eyebrows went up significantly.

She never commented in words on the affairs of others, but her face always was indiscreet.
George, who had come up in time to hear the last words, was not so scrupulous.