Uncommon Danger is the second novel by British thriller writer Eric Ambler, published in 1937. It was published in the United States as Background To Danger. In his autobiography, Here Lies Eric Ambler, Ambler explains that "Background To Danger" was the original title, but his British publisher disliked the word 'background', so it was published in all English-speaking countries except the US as Uncommon Danger. Source: Wikipedia (en)