When the first bomb goes off, heads of state around the world receive Pendaragon's incredible ultimatium. Britain's M5 gets on the hot-line to America's AXE group, and the greatest counter-espionage strike of all time is launched.
Used availability for Nick Carter's Spy Castle
1975 : UK Paperback
Title: Spy Castle
Author(s): NICK CARTER
ISBN: 0-426-12546-0 / 978-0-426-12546-4 (UK edition)
Availability: Amazon UK
May 1968 : UK Paperback