Killing a Mouse on Sunday

Killing a Mouse on Sunday is a 1961 thriller novel by the British-Hungarian writer Emeric Pressburger, best known as a film producer. In Francoist Spain a Civil Guard officer attempts to lure a notorious exiled guerrilla fighter back across the border from France.
The anarchist Quico Sabaté's death inspired the book.

Adaptation

In 1964 it was adapted into a Hollywood film Behold a Pale Horse directed by Fred Zinnemann and starring Gregory Peck, Anthony Quinn, and Omar Sharif.