If you are fascinated by the Portland Spy Ring you are going to love this. If you know nothing about the Portland Spy Ring you are going to love this. I often say that spy fact is often more intriguing than spy fiction and that is what we get in Trevor Barnes' book Dead Doubles. Author Trevor Barnes joins us on the Spybrary Spy Book Podcast to share more about this fascinating story of spying and counter-intelligence. He is expertly debriefed by guest host Chris Carr, the host and producer of the Secrets and Spies Podcast.