"A fast-driven, maturely manipulated political thriller...Europe is at war - a Fascist coup is imminent as arms are exchanged for Mexican oil." (Kirkus). When newspaperman Henry Van Dyle is assassinated in Mexico City, agency stringer Jimmy Lamson, who was having an affair with Van Dyle's wife, is driven to investigate the mystery of his death. The clues point to a sinister cabal manipulating politics - and orchestrating Nazi interests - in Mexico City. But who is 'Senor Tom', the codenamed personage identified in Van Dyle's notebooks as the man pulling the strings? Arthur Calder-Marshall lived in Mexico before the outbreak of war and drew on his experiences to lend fidelity to this pacey, suspenseful, superbly written novel, first published in 1941, which Orson Welles tried to adapt for the cinema before making Citizen Kane.