After all, it seemed that I was in for something a little more complicated in the way of adventures than I had imagined.

I examined the lock of the door by which I had entered.

It worked easily, and there was also a bolt on the inside.
The door was by its side which led into the sitting-room.

I also examined it, and I saw with satisfaction that there was at the top a narrow glass transept, which I carefully opened.

The sitting-room was in darkness, so Felicia had evidently retired for the night.