Sinister Restlessness

It was a sooty-black animal that resembled a monstrous cat. It appeared to me about four or five feet long for it measured fully the length of the hearthrug as it passed over it; and it continued to-ing and fro-ing with the lithe, sinister restlessness of a beast in a cage. I could not cry out, although as you may suppose, I was terrified. Fear and fascination: blackened vetiver, amber smoke, clove, and oudh.