The Adventures of Mr Pinkwhistle.
Enid Blyton, Newnes, London, 1950. (Illustrated by Dorothy Wheeler)
Read all about this Secret Little Man and what he gets up to on a Marvellous Afternoon with Jimmy, the Girl with the Broken Doll, the Two Ugly Creatures, and the Forgotten Rabbits! Yay!
Seriously – I know she wrote very quickly, but did she give this name a moment’s thought?