Today is World Book Day. Miss Marple set off to school to join the host of other characters from literature.

She may look a benign, sweet lady but those children better beware the killer look over those glasses.

I was given permission to reproduce this photograph here on the strict understanding that I pointed out that it came from the Geraldine McEwan era rather than Margaret Rutherford incarnation.

If you could choose a character today who would you be and why?