I quickly perceived the outlines of a human figure.

Its steps were irresolute and slow.

I recoiled as it advanced.
By coming at length within the verge of the room, his form was clearly distinguishable.

I had prefigured to myself a very different personage.
The face that presented itself was the last that I should desire to meet at an hour, and in a place like this.

My wonder was stifled by my fears.
Assassins had lurked in this recess.