Secret Service Brainteasers

Sinclair McKay's Bletchley Park Brainteasers was the runaway quiz book bestseller of 2017, now it's time to pit your wits against the secret heroes of MI5 and MI6 and find out if YOU have what it takes to be a spy!If you cracked the GCHQ Puzzle Book and followed the Ordnance Survey Puzzle Book, you MUST show off your James Bond credentials with Secret Service Brainteasers ...Whether you have lingu...