But till you are thoroughly restored to health, we will defer all discussion.

And now, mademoiselle, permit me to escort you to the door.
I shall expect you to-morrow." Together we left the beautiful room in which this interview had taken place, and crossed the hall.

As we approached the entrance, Heliobas turned towards me and said with a smile: "Did not the manoeuvres of my street-door astonish you ?" "A little," I confessed.
"It is very simple.

The button you touch outside is electric; it opens the door and at the same time rings the bell in my study, thus informing me of a visitor.

When the visitor steps across the threshold he treads, whether he will or no, on another apparatus, which closes the door behind him and rings another bell in my page's room, who immediately comes to me for orders.