The Undying Past is an 1894 novel by the German writer Hermann Sudermann. Its German title is Es war which means "it was". The novel tells the story of how a German man, Leo, returns to his homeland after several years in South America, only to find that Ulrich, his beloved childhood friend, has married a woman with whom Leo has a dark past. The book was published in English in 1906, translated by Beatrice Marshall. Source: Wikipedia (en)