"I've just received a threatening letter," he told her.
"Who in the world could have sent it?"
"Evidently some blackmailing wretch. It demands a ransom."
"Heavens! You won't be cowardly enough to yield?"
"Certainly. I daren't refuse."
He heard her laughing softly. "Why don't you tell the police?"
"Indeed! There's an army of men besieging the place now."
"Then you must expect to catch the writer?"
"I've been trying to for a long time."
"I'm sure I don't know what you are talking about," she said, innocently.