So Geraldine McEwan is hanging up her Marple knitting needles. Which gives ITV a new mystery to solve - who will be the next Miss Marple?
We're getting into national treasure territory here so ITV has to be careful. It's like the hunt for a new Doctor Who. Only with more tweed involved.
McEwan was the sixth Jane Marple and her replacement will no doubt divide Agatha Christie fans.
Former Marples: Joan Hickson, left, and Geraldine McEwan
Personally my favourite was Joan Hickson so I always think of Miss Marple being quite elderly. McEwan was in that mould and did a grand job - boosting the brand around the world.
ITV isn't hanging around and starts on the trail of a new Marple next week. Will it go a bit younger this time and plump for the likes of hot ITV favourite Victoria Wood or Julie Walters?
Could previous contenders Prunella Scales, Anna Massey or Eileen Atkins win this time?
If ITV's looking to appeal more to the US, Maggie Smith or Helen Mirren would bring a bit of spice to the role.
But why not go completely left-field and bring in David Suchet? Think of the cross-promotion opportunities.
Top suggestion here at Media Guardian Towers though is someone renowned for her sharp tongue and ability to tease out people's secrets.
Yes...the campaign for Dame Edna Everage for Miss Marple starts here.
