Passenger

David Walker, a toy manufacturer, usually made it a rule not to give lifts to stray young women. And on this occasion, with his business preoccupations and anxieties about his wife, most hitch-hikers would have forgiven him for passing them by.

But this one was an extremely pretty girl in her early twenties, wearing a set of fairly new jeans and with a cheeky cap on her head; there was something i...