The first of his radio plays to make his reputation was "Mathry Beacon" (1956) about a small detachment of men and women still guarding a Top Secret "missile deflector" somewhere in Wales, some years after the war has ended; the first and only American production, starring Martyn Green, was syndicated to public stations in 1981 by the National Radio Theater of Chicago. Also of note are "Unman, Wittering and Zigo" (1958) in which a young teacher finds his predecessor has been murdered by the boys in his class and "The Long House" (1965). "Out of the Crocodile" ran at the Phoenix Theatre in 1963-64 starring Kenneth More, Celia Johnson and Cyril Raymond. ""The Spies are Singing"" was presented at the Nottingham Playhouse in 1966, starring the theatre's Artistic Director John Neville.