“I am afraid it is a big problem I have brought you today, Monsieur Poirot,” said the girl, giving me a pleasant bow as she seated herself. “I dare say you have read about it in the papers. I am referring to the theft of Liberty Bonds on the Olympia .” Some astonishment must have shown itself in Poirot’s face, for she continued quickly: “You are doubtless asking yourself what I have to do with a grave institution like the London and Scottish Bank. In one sense nothing, in another sense everything. You see, Monsieur Poirot, I am engaged to Mr. Philip Ridgeway.”

“Aha! and Mr. Philip Ridgeway⁠—”