Ambler's The Mask of Dimitrios and Journey Into Fear are two of my favorite thrillers.
Spy stories are, at least sometimes, a secular equivalent of ghost stories, tales of mysterious menace. (Note that spies are sometimes referred to as spooks.) Eric Ambler (1909-1998) is unquestionably one of the best writers of spy stories in English. His stories are filled with mystery and menace and are distinguished by an air of realism, sophisticated plots, and polished prose.
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