The first and best
Geoffrey Household, who wrote in the period between the wars, originated the genre of the lone man against assassins in the English countryside. Rogue Male was the first of these stories, and to my way of thinking, the best. In this short novel set about 1938, the hero, an English gentleman of means and a wellknown sportsman, decides to stalk a rising European dictator (unmisakably Hitler) "just to see if he can get in position for a shot", but not actually to fire his rifle. He is discovered and thrown over a cliff to an apparently accidental death, but he survives the fall and escapes back to England with the Gestapo on his trail. The rest of the book describes his escape and evasion.
In common with English novels of the time, there are no lurid sex scenes, no sadism, no profanity, and no gory descriptions, just lots of lively action and first class suspense. After this book, you will want to read more of Household's stories.
