For the 75th-anniversary edition of "Over the Teacups", a letter was chosen from each decade, and here is the one from the 1950s, submitted by "Nan", headlined "WRITTEN IN STONE?" and dated 18 November 1954:
I'm sure any of us would have answered the same.It was the great occasion of a birthday party and our twin daughters had been busy preparing a quiz for their guests, to be held in the quiet half-hour after tea. Each child came in and was duly asked numerous questions. One such, "Who lives at Number 10 Downing St, London?" proved to be rather difficult to answer. "Come on, you know," said the little hostess, "the most important person in England."
"Oh yes of course," answered her little friend, "Enid Blyton."