Thirteen-year-old Nick and his slightly dense older brother Herbert run the Diamond Private Detective Agency above Camden Town Tube Station in north-central London. When a master criminal called The Falcon dies, they come into possession of his box of chocolate Maltesers, which contains the secret key to a fabulous cache of diamonds. Can they unravel the mystery and avoid the clutches of seedy lowlifes Brenda Von Falkenberg, Gott and Himmell, The Fat Man and the dogmatic Chief Inspector Snape, all of whom want to find the swag first.

Tim Diamond

Lauren Bacardi

Mr. Patel

Betty Charlady/Brenda von Falkenberg

Jack Splendide

Boyle

Chief Inspector Snape

The Fat Man

Gott

Himmell

The Professor

Henry von Falkenberg

Hammett

Vicar

Club Owner

Traffic Warden
September 1, 1988

Tim Diamond

Lauren Bacardi

Mr. Patel

Betty Charlady/Brenda von Falkenberg

Jack Splendide

Boyle

Chief Inspector Snape

The Fat Man

Gott

Himmell

The Professor

Henry von Falkenberg

Hammett

Vicar

Club Owner

Traffic Warden

