Professor of Ignorance John Lloyd and his curator Alice Levine welcome:

* Writer and presenter Danny Wallace
* Broadcaster and tech expert Georgia Lewis Anderson
* Agatha Christie’s great-grandson and CEO of Agatha Christie Ltd James Prichard

The Museum's Guest Committee donate a giant balloon, a mobile phone inside a crystal ball and Agatha Christie’s favourite mug.

Researchers: Mike Turner and Anne Miller of QI.

Producers: Victoria Lloyd and Anne Miller.

A BBC Studios production for BBC Radio 4, first broadcast in September 2020. Show less