But the next, I found that though its face reflected the room in which I sat, there was one omission.
_I_ was that omission.

My arm-chair was there, but no one sat in it.
I was surprised; but, as well as I can recollect, not in the least frightened.

I continued, at any rate, to gaze steadily into the glass, and now took note of two particulars that had escaped me.

The table I saw was laid for two.

Forks, knives and glasses gleamed at either end, and a couple of decanters caught the sparkle of the candles in the centre.