When they were both seated, I announced that we were ready.

Lucilla placed her hands on their faces, right and left, without the faintest idea in her mind of the positions which the two relatively occupied.
After first touching them with both hands, and both together, she tried them separately next, beginning with Oscar, and using her right hand only.

She left him for Nugent; again using her right hand--then came back to him again--then returned to Nugent--hesitated---decided--tapped Nugent lightly on the head.
"Oscar!" she said.
Nugent burst out laughing.

The laugh told her, before any of us could speak, that she had made a mistake at the first attempt.
"Try again, Lucilla," said Oscar kindly.
"Never!" she answered, angrily stepping back from both of them.

"One mystification is enough." Nugent tried next to persuade her to renew the experiment.