She saw nothing, however, and heard nothing.

She entered the library swiftly and closed the door behind her, so that the room fell once more upon darkness save for a thread of gold at the bottom of the other door behind which the men of the party were still sitting over their wine.

She crossed the room towards the window, stepping cautiously to avoid the furniture.

She was quite invisible.

But for a tiny rustle of the lace flounces on her dress one would have sworn the room was empty.