Enigma and Archangel

Suspense fiction. Enigma: The hero is Tom Jericho, a brilliant British mathematician working as a member of the team struggling to crack the Nazi Enigma code. Jericho's own struggles include nerve-wracking mental labour, the mysterious disappearance of a former girlfriend, the suspicions of his coworkers within the paranoid high-security project, and the certainty that someone close to him, perhaps the missing girl, is a Nazi spy. Archangel: When historian Fluke Kelso learns of the existence of a secret notebook belonging to Josef Stalin he is determined to track it down, whatever the consequences. From the violent political intrigue and decadence of modern Moscow he heads north - to the vast forests surrounding the White Sea port of Archangel, and a terrifying encounter with Russia's unburied past.