Her color rose. "How?" she asked abruptly.
"Try your touch alternately on both their faces," I suggested, "without knowing beforehand which position they each of them occupy. Make three trials--leaving them to change their places or not, between each trial, just as they please. If you guess which is which correctly three times following, there will be the proof that you can really lay your hand on a difference between them."
Lucilla shrank from accepting the challenge. She drew back a step, and silently shook her head. Nugent, who had overheard me, turned round suddenly from the window, and supported my proposal.
"A capital notion!" he burst out. "Let's try it! You don't object, Oscar--do you?"
"_I_ object?" cried Oscar--amazed at the bare idea of his opposing any assertion of his will to the assertion of his brother's will. "If Lucilla is willing, I say Yes, with all my heart."
The two brothers approached us, arm in arm. Lucilla, very reluctantly, allowed herself to be persuaded into trying the experiment. Two chairs, exactly alike, were placed in front of her. At a sign from Nugent, Oscar silently took the chair on her right. By this arrangement, the hand which she had used in touching Nugent's face, would be now the hand that she would employ in touching Oscar's face. 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. She checked him sternly at the first word.
"Do you think if I won't do it for Oscar," she said, "that I would do it for you? You laughed at me. What was there to laugh at? Your brother's features are your features; your brother's hair is your hair; your brother's height is your height. What is there so very ridiculous--with such a resemblance as that--in a poor blind girl like me mistaking you one for the other? I wish to preserve a good opinion of you, for Oscar's sake. Don't turn me into ridicule again--or I shall be forced to think that your brother's good heart is not yours also!"
Nugent and Oscar looked at each other, petrified by this sudden outbreak;
Nugent, of the two, being the most completely overwhelmed by it.