The 'unbreakable' code that baffled Scotland Yard detectives investigating the Spy in the Bag mystery... until the truth emerged

Searching through a diary belonging to MI6 analyst Gareth Williams, Scotland Yard detectives came across a mysterious phrase written in his handwriting that left them baffled.

The 'unbreakable' code that baffled Scotland Yard detectives investigating the Spy in the Bag mystery... until the truth emerged
Searching through a diary belonging to MI6 analyst Gareth Williams, Scotland Yard detectives came across a mysterious phrase written in his handwriting that left them baffled.