The note was true!

“I have written Miss Mordaunt a letter,” said David, “telling her that I have in my possession something which I know that she would like to have, and have received no answer. I suppose you forward her letters on to her?”

“Yes; we send them to a gentleman who forwards them on.”

“Ah? What gentleman is that?”

“A Mr. Van Hupfeldt.”

“I see. But can you give me Mrs. Mordaunt’s address?”

“We are not to give it; but any letters will be sent on.”

“Through Mr. Van Hupfeldt?”

“Yes.”

“But suppose I send you one with a cross on the envelope, would you do me the special favor to send that one on direct, not through Mr. Van Hupfeldt?”