Europe is in turmoil. The Nazis have marched into the Rhineland. In Russia, Stalin has unleashed his Great Terror. Spain has erupted in civil war. In Berlin, a young Englishwoman evades the Gestapo to deliver vital papers to a Jewish scientist. Within weeks, she is found dead in her Cambridge bedroom, a silver syringe clutched in her fingers. In a London club, three senior members of the British establishment light the touch paper on a conspiracy that will threaten the very heart of government.
