Peter Dickinson

superheroine n.	1965 P. Dickinson Blood Count in Punch 13 Jan. 71/3 Behind the Arras [...] British trainee spy is ordered to help smash commie-riddled CND type organisation by seducing dynamic daughter of its head-in-clouds leader. Quite lively, and one of his colleagues makes a change from superheroes: she’s a superheroine.