The photo album is based on a 10-part feature nature series Saga Prastarej Puszczy (editor’s translation: The Saga of the Ancient Forest) developed by Bożena and Jan Walencik for Polish Television between 2000 and 2009, and converted to HD in 2015 and 2016. The scripts and 1924 photographs in the album are the result of nearly ten years of the couple simultaneous taking photos and filming. The 664-page album consists of a cinematographic prologue, ten chapters featuring stories about ten animals from the Białowieża Forest and a photographic making-of essay.