From Russia With Love by Ian Fleming

The story centres on a plot by SMERSH, the Soviet counter-intelligence agency, to assassinate Bond in such a way as to discredit both him and his organisation. As bait, the Russians use a beautiful cipher clerk Tatiana Romanova and the Spektor, a Soviet decoding machine. Much of the action takes place in Istanbul and on the Orient Express. The book was inspired by Fleming's visit to Turkey on behalf of The Sunday Times to report on an Interpol conference; he returned to Britain by the Orient Express. From Russia, with Love deals with the East-West tensions of the Cold War, and the decline of British power and influence in the post-Second World War era. SMERSH, the Soviet counterintelligence agency, plans to commit a grand act of terrorism in the intelligence field. For this, it targets the British secret service agent James Bond. Due in part to his role in the defeat of the SMERSH agents Le Chiffre, Mr Big and Hugo Drax, Bond has been listed as an enemy of the Soviet state and a "death warrant" is issued for him. His death is planned to precipitate a major sex scandal, which will run in the world press for months and leave his and his service's reputations in tatters. Bond's killer is to be the SMERSH executioner Donovan "Red" Grant, a British Army deserter and psychopath whose homicidal urges coincide with the full moon. Kronsteen, SMERSH's chess-playing master planner, and Colonel Rosa Klebb, the head of Operations and Executions, devise the operation. They instruct an attractive young cipher clerk, Corporal Tatiana Romanova, to falsely defect from her post in Istanbul and claim to have fallen in love with Bond after seeing a photograph of him. As an added lure for Bond, Romanova will provide the British with a Spektor, a Russian decoding device much coveted by MI6. She is not told the details of the plan. The offer of defection is received by MI6 in London, ostensibly from Romanova, but is conditional that Bond collects her and the Spektor from Istanbul. MI6 is unsure of Romanova's motive, but the prize of the Spektor is too tempting to ignore; Bond's superior, M, orders him to go to Turkey. Once there, Bond forms a comradeship with Darko Kerim, head of the British service's station in Turkey. Bond meets Romanova and they plan their route out of Turkey with the Spektor. He and Kerim believe her story and the three board the Orient Express.