Some years have already passed since the book Summer of dead dreams by Harry Thürk (2015) was published. Some inhabitants of Prudnik County have treated the German perception as presented in its pages and interwoven in the historicists’ motifs, as a non-fiction and as a reliable source. This is why it has become essential to take some steps to present this multithreaded post-war event more honestly. One of the museums’ functions is their multi-dimensional educational activity, achieved through exhibitions and publications. Consequently, the Prudnik County Museum in Prudnik town has undertaken the task of showing the chequered history of this region from 1945 to 1947 by: a) preparing and elaborating a permanent exhibition entitled “Seen through a net curtain. The multiculturality of Upper Silesia based on Prudnik County”; b) publishing a book of the same title which brings closer the intangible heritage of Prudnik county, seen in its traditions and folk rituals of various social and cultural groups which together form its current “ethnos”; c) publishing a collection of eyewitness accounts by people who remember the years 1945–1947. The issue of changing borders and resettlements still evokes emotions for both the Polish and German communities. Although, the Polish and German tragedy of the civilian population had different origins, the tragedy itself was the same: extermination, forcing people to abandon their homes, going into the unknown, exile, illnesses and death are the common denominators of those sad events at the end of WWII. The museum’s role is to familiarise the public with a very frequently difficult and tragic history which would be free of stereotypes and subjectivity.