Mr. and Mrs. John Holt, aging people who slowly and with trembling fingers turn the last pages of a book of life and hope against logic and the preordained that some magic printing press will add to this book another limited edition. But these two senior citizens happen to live in a time of the future where nothing is impossible, even the trading of old bodies for new. Mr. and Mrs. John Holt, in their twilight years, who are about to find that there happens to be a zone with the same name.1