“Strange,” said Poirot, drawing his brows together. He turned to Katherine. “Be brave, Mademoiselle; look at her well. Are you sure that this is the woman you talked to in the train yesterday?”

Katherine had good nerves. She steeled herself to look long and earnestly at the recumbent figure. Then she leaned forward and took up the dead woman’s hand.

“I am quite sure,” she replied at length. “The face is too disfigured to recognise, but the build and carriage and hair are exact, and besides I noticed this ”⁠—she pointed to a tiny mole on the dead woman’s wrist⁠—“while I was talking to her.”

“ Bon ,” approved Poirot. “You are an excellent witness, Mademoiselle. There is, then, no question as to the identity, but it is strange, all the same.” He frowned down on the dead woman in perplexity.