by James Ponti (Author), Lisa Flanagan (Narrator), Simon & Schuster Audio (Publisher) An audiobook. LONDON CALLING, the sixth City Spies adventure by James Ponti, is another amazing story about the young Special MI-6 spies whom the Second-in-Command of British espionage, calls “those magnificent children.” Each of these kids, aged from 9 to 14, was once orphaned and then found in…