As Bond contemplates the prospect of reporting his failure to M, the CIA agent, Felix Leiter, gives him an envelope of money and a note: ' Marshall Aid. The game soon turns into an intense confrontation between Le Chiffre and Bond Le Chiffre wins the first round, cleaning Bond out of his funds. The CIA and the French Deuxième Bureau also send agents as observers. As part of Bond's cover as a rich Jamaican playboy, M also assigns as his companion Vesper Lynd, personal assistant to the Head of Section S ( Soviet Union). M, the Head of the British Secret Service, assigns James Bond, 007, to play against and bankrupt Le Chiffre, the paymaster for a SMERSH-controlled trade union, in a high-stakes baccarat game at the Royale-les-Eaux casino in northern France. Since publication Casino Royale has appeared as a comic strip in The Daily Express, and been adapted for the screen three times: a 1954 episode of the CBS television series Climax! with Barry Nelson as an American Bond, a 1967 film version with David Niven playing 'Sir James Bond', and a 2006 film in the Eon Productions film series starring Daniel Craig as James Bond.

The book was given broadly positive reviews by critics at the time and sold out in less than a month after its UK release on 13 April 1953, although US sales upon release a year later were much slower. Within the spy storyline, Casino Royale deals with themes of Britain's position in the world, particularly the relationship with the US in light of the defections to the Soviet Union of the British agents Guy Burgess and Donald Maclean. He was initially unsure whether the work was suitable for publication, but was assured by his friend, the novelist William Plomer, that the novel had promise. Fleming wrote the draft in early 1952 at his Goldeneye estate in Jamaica while awaiting his marriage. Fleming used his wartime experiences as a member of the Naval Intelligence Division, and the people he met during his work, to provide plot elements the character of Bond also reflected many of Fleming's personal tastes. Bond is supported in his endeavours by Vesper Lynd, a member of his own service, as well as Felix Leiter of the CIA and René Mathis of the French Deuxième Bureau. The story concerns the British secret agent James Bond, gambling at the casino in Royale-les-Eaux to try and bankrupt Le Chiffre, the treasurer of a French union and a member of the Russian secret service. Published in 1953, it is the first James Bond book, and it paved the way for a further eleven novels and two short story collections by Fleming, followed by numerous continuation Bond novels by other authors.

Casino Royale is the first novel by the British author Ian Fleming.

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