Now, that was interesting. Didn't expect that. Gladys was quite a lady. Daring choice, I say. For a 28 years old. Just some trivial information - Gladys Mitchell was born the same year as my grandfather.
“Dr Beatrice Bradley is elderly, ugly, has darkly sharp insights and an extremely wicked tongue”
And they choose Diana Rigg to play her in the tv series :-D
I think she liked that :-)