I love this author for his psychological suspense. This was my latest purse book, and I finished it off Saturday morning. Written in 1962, my copy is a Penguin from 1979. This novel takes place partly in a French resort beach house and partly in Paris. A fire occurred at the beach house and one girl is killed, while another is badly burned and in a state of amnesia. The injured girl undergoes surgery, but must take others' word for her identity. Of the two girls who were childhood friends, one is a wealthy heiress that has a bit of a cruel streak, the other is a hardworking girl eager to be the chosen friend. As the book develops, the reader is unsure of the girl's identity, then sure again, then unsure. The suspense around the identity of the girl, the events on the night of the fire, and others who may or may not know what happened is with us right to the end. The title has an additional significant meaning that we also don't learn until the end. Japrisot's books are often short, but contain a lot of mental suspense. And immensely satisfying endings.