Secretly, of course.

No one but you two will ever know of it.

By staying here, I shall be practically at no expense.

But the world will think I am in Europe, and my position will be saved." Staggered as she was, Olivetta had remaining a few fragments of reason.
"But--but, Caroline! You cannot merely announce that you are going abroad! You are a person of importance--your every move is observed.
People will see that you do not sail.

How will you get around that ?" It sounded a poser.