It dismisses the alien story and puts forward the theory that Stalin was inspired by Orson Wells’s famous radio adaptation of the HG Wells novel War of the Worlds, which provoked hysteria across America when broadcast in 1938. According to the book, the plot started after the Soviet Union seized from Germany at the end of the war the jet-propelled, single wing Horton Ho 229 – a fighter said to be the forerunner of the modern B2 stealth bomber.