Death in the Clouds, also known as 'Murder in the Air' in the US, is a detective novel by British writer Agatha Christie. The book features the Belgian detective Hercule Poirot, who finds himself amidst a baffling murder investigation on board a commercial passenger flight. The narrative unfolds as Poirot, with his keen observational skills and methodical approach, attempts to solve the murder where anyone on the flight could be a suspect.