“What is it?” answered the Duke quietly.
“I can’t see any handkerchief,” said Guerchard. “Didn’t you say it was in the left-hand corner of the little room on the right?”
“I told you you’d better let me come with you, and find it,” said the Duke, in a tone of triumph. “It’s in the right-hand corner of the little room on the left.”
“I could have sworn you said the little room on the right,” said Guerchard.
They heard his footfalls die away.
“Now, you must get out of the house quickly.” said the Duke. “Show this card to the detectives at the door, and they’ll pass you without a word.”
He pressed the card into her hand.
“But—but—this card?” stammered Sonia.
“There’s no time to lose,” said the Duke.
“But this is madness,” said Sonia. “When Guerchard finds out about this card—that you—you—”