You Only Live Twice is the eleventh novel and twelfth book in Ian Fleming's James Bond series. It was first published by Jonathan Cape in the United Kingdom on 26 March 1964 and quickly sold out. It was the last novel Fleming published in his lifetime. He based his book in Japan after a stay in 1959 as part of a trip around the world that he published as Thrilling Cities. He returned to Japan in 1962 and spent twelve days exploring the country and its culture. You Only Live Twice begins eight months after the murder of Tracy Bond, James Bond's wife, which occurred at the end of the previous novel, On Her Majesty's Secret Service (1963). Bond is drinking, gambling heavily and making mistakes on his assignments when, as a last resort, he is sent to Japan on a semi-diplomatic mission. While there he is challenged by the head of the Japanese Secret Service to kill Dr. Guntram Shatterhand. Bond realises that Shatterhand is Ernst Stavro Blofeld—the man responsible for Tracy's death—and sets out on a revenge mission to kill him and his wife, Irma Bunt. The novel is the concluding chapter of the "Blofeld Trilogy", which had begun in 1961 with Thunderball. The novel deals with the change in Bond from an emotionally shattered man in mourning, to a man of action bent on revenge, to an amnesiac living as a Japanese fisherman. Through the mouths of his characters, Fleming also examines the decline of post-Second World War British power and influence, particularly in relation to the United States. The book was popular with the public, with pre-orders in the UK totalling 62,000; reviewers were more muted in their reactions, many criticising the extended sections of what they considered a travelogue. The story was serialised in the Daily Express newspaper—where it was also adapted for comic strip format—and in Playboy magazine. In 1967 it was released as the fifth entry in the Eon Productions James Bond film series, starring Sean Connery as Bond; elements of the story were also used in No Time to Die (2021), the twenty-fifth film in the Eon Productions series. The novel has also been adapted as a radio play and broadcast on the BBC.