I, Spy: a Bletchley Park mystery

A thrilling mystery adventure set in Bletchley Park at the start of World War II, based on true historical events.

Twelve-year-old Robyn has grown up in Bletchley Park, where her father works as a driver. When she's not at school, there's nothing she likes more than helping her dad in the garages.

Then the war begins and everything at Bletchley changes.

Robyn is assigned to help with the carrier pigeons that take messages to the Allies. But first, she must sign the Official Secrets Act and is...