Between the first and second acts a note was handed to me.

It was not addressed, neither was it signed.

But it was for me; the bearer spoke my name.

As near as I can remember, the note contained these words: "A carriage will await you two blocks south; it will be without lights.
You will enter it exactly ten minutes after the opera is ended." That was all, but it was enough.

When I returned to my seat I found the Princess gazing intently at me.