Mrs.Fitzgerald was looking for it before I reached the stairs.

I expect she has called the police in by now." Slowly her hand stole into the depths of her pocket and emerged.
Something flashed for a moment high over her head.

The young man caught her wrist just in time, caught it in a veritable grip of iron.

Then, indeed, the evil fires flashed from her eyes, her teeth gleamed white, her bosom rose and fell in a storm of angry, unuttered sobs.

She was dry-eyed and still speechless, but for all that she was a tigress.