Enid Blyton made a lot of money out of the Famous Five. Maybe she could have invented a brand called the ‘Infamous Five’ that would have made her even more. But the Unfamous Five is a name that might have struggled to bear box office fruit.

Yet the glories of the British constitution are about to deliver one of five little-known people – none of whom has a substantial political following of their own – into the office of prime minister.