Get in the action with some old school spy thrillers and true secret service stories:
Introduction:
The World's Greatest Military Spies and Secret Service Agents (George Barton)
My Adventures as a Spy (Robert Baden-Powell)
Novels:
Robert W. Chambers
In Secret
The Dark Star
The Slayer of Souls
The Flaming Jewel
John Buchan:
The 39 Steps
Greenmantle
Mr Standfast
The Three Hostages
The...