Kamienie na szaniec (lit. Stones for the Rampart, also translated as Stones on the Barricade) is a 1943 non-fiction novel by Polish writer Aleksander Kamiński. Published by the Polish underground press during the World War II occupation of Poland, the book describes the history of the Polish underground scout movement, the Grey Ranks (and the affiliation, in particular with the Polish Underground State and Home Army, of whom Kamiński was one of the instructors and leaders, from his experiences and several members in particular, from the time before through the occupation until the publication. Already immensely popular during World War II, after the war the book entered the canon of Polish literature and remains a recommended reading text for Polish students in the secondary school curriculum. It was adapted into two feature films, in 1978 and in 2014. Source: Wikipedia (en)