In "The Etgar Quiz no 257," a set of trivia questions related to Jewish history and culture are presented.

This fictional story centers around the protagonist's discovery that Raoul Wallenberg, a heroic Swedish diplomat who saved the lives of thousands of Hungarian Jews during WWII, may be alive.

Ari Kaplan, a respected Sabermetrician in Major League Baseball, is also deeply involved in researching the fate of Holocaust rescuer Raoul Wallenberg, a Swedish diplomat who saved numerous Jews during the Nazi era and disappeared during the Red Army's Siege of Budapest in 1945.