Poirot has always hated visiting the dentist, but this time his check-up is painless and soon over. As he leaves Mr Morley's surgery, he observes a woman wearing patent leather shoes with large buckles. She catches one of the buckles on the taxi door and wrenches it off, and as Poirot hands it back, he is reminded of the children's rhyme 'One, two...
A lost legacy puts one of England’s great families in mortal peril … Lazen Castle, home to the much-envied Lazender family, is a house under siege. The heir is abroad, pursuing his own adventures, so the family estates fall under the control of his sister, Campion. Meanwhile, The Fallen Angels, a powerful and dangerous secret society in Europe, need the Lazender fortune to bring their rebellion to England.