In the Shadows of the Blitz is a historical crime thriller by Mark Ellis and the second book in the DCI Frank Merlin series. Set during the Battle of Britain and the London Blitz, it follows DCI Frank Merlin as he investigates the disappearance of a Polish RAF pilot while wartime London faces bombing, looting, espionage, and a wider search for Stalin’s lost gold. The book was previously published as Stalin’s Gold.