In my previous Novel, The Purple Runner, in the very late 1970s a mysterious talented American runner with a disfigured face is seen bolting over the Hampstead Heath north of London, England. At story's end, the Runner (never identified) wins the Greater London Marathon. For the first time in history the time for the 26.2-mile distance is under two hours. Yet on completing the course, he continues running, disappearing into the many streets and avenues...