Robert Ludlum 
Tristan Betrayal [EPUB ebook] 

Two wars, two secrets, one man…A brilliant global conspiracy thriller from the Sunday Times bestselling master storyteller.1940. American Stephen Metcalfe is a minor asset in the US secret intelligence forces in Europe. Through a wild twist of fate, he must instigate a bold plan that may be the only hope for what remains of the free world. He must travel to wartime Moscow to find, and possibly betray, a former lover…1991. The Communist empire is on the verge of oblivion, and a coup is being planned by a powerful new cabal. Stephen Metcalfe, now a retired ambassador, must return to Moscow and finally reveal a secret that has haunted him since the fall of Berlin…a secret that might just avert a global cataclysm.