Please answer the following question: Information: - The gentleman detective is a type of fictional character. He (or, less commonly, she) has long been a staple of crime fiction, particularly in detective novels and short stories set in Britain in the Golden Age. The heroes of these adventures are typically both gentlemen by conduct and also members of the British gentry. The literary heroes being in opposition to professional police force detectives from the working classes. - Death in a White Tie is a detective novel by Ngaio Marsh . It is the seventh novel to feature Roderick Alleyn , and was first published in 1938 . The plot concerns the murder of a British lord after a party . It was adapted for television in a 1993 episode of The Inspector Alleyn Mysteries , a BBC production . The director was John Woods , the screenwriter Ken Jones , and Alleyn was played by Patrick Malahide . - Roderick Alleyn is a fictional character who first appeared in 1934. He is the policeman hero of the 32 detective novels of Ngaio Marsh. Marsh and her gentleman detective belong firmly in the Golden Age of Detective Fiction, although the last Alleyn novel, "Light Thickens", was published in 1982. - Light Thickens is a detective novel by Ngaio Marsh; it is the thirty-second, and final, novel to feature Roderick Alleyn, and was first published in 1982. The plot concerns the murder of the lead actor in a production of "Macbeth" in London, and the novel takes its title from a line in the play. A number of characters in the book appeared previously in Marsh's novel "Death at the Dolphin". The novel is dedicated to the actors James Laurenson and Helen Thomas who had played Macbeth and Lady Macbeth respectively in the author's 1962 production of the play, which she had previously directed, also for The Canterbury University Players, in 1946. What is the relationship between 'death in a white tie' and 'london'?
Answer:
narrative location