Szare Szeregi
"Kamienie na szaniec" was published by the Polish underground press in 1943, during the period of German occupation of Poland in World War II. The author Aleksander Kamiński was a member of the Polish Armia Krajowa (Home Army) resistance movement, editor of the underground "Biuletyn Informacyjny" magazine, and one of the instructors and leaders of the Polish underground scout movement, the Gray Ranks, which took an active role in the resistance through various acts of minor resistance known as small sabotage. Kamiński based his story on the memoirs of Tadeusz Zawadzki ("Zośka"), a 22-year-old member of the Gray Ranks.