Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Input: Context : The Poisoned Chocolates Case (1929) is a detective novel by Anthony Berkeley set in 1920s London in which a group of armchair detectives, who have founded the ''Crimes Circle'', formulate theories on a recent murder case Scotland Yard has been unable to solve.
Answer : London
Output:
Which place does The Poisoned Chocolates Case exist in?