During the First World War, some of the Ottoman soldiers who fought on different fronts on 3 continents were able to return to their homeland in 1922. The letters these soldiers wrote to their families during their 7 years of captivity are the only means of communication with them. We are delivering the letters that have been waiting in the archives for a century, written to the families of 3 soldiers who were captured in Siberia and who set out to return to Istanbul with the Japanese ship Heimei-Maru, to their grandchildren. How will these 3 grandchildren, who only know their grandfather from the stories, feel when they receive their letters? What is described in these letters? These letters, which have been waiting to be read for a century, are the letters of captive soldiers whose stories have never been told.