The late Hans Stefan Santesson approached me at a party to see if I could contribute to his proposed Walker Anthology on crime prevention in the future. I had nothing completed but I'd just finished "A Womanly Talent," in which parapsychics got made respectable. I'd proposed that there'd be such talents as 'finders' employed by law enforcement officers to locate lost persons and objects. Happily, that back' ground generated this story, almost in one sitting… rewarding me in many ways. Authors dream yearn' ingly of stories that'll write themselves. It happens infrequently and is regarded, at least by me, as a minor miracle—the good apple in the barrel of imagination, Juicy, tart, memorable.