Spanish by birth, Parisian by adoption, Sempr n (1923-2011) was a legendary figure on the front lines of twentieth-century European history. During the first half of his life he was an exile of the Spanish Civil War, a member of the French Resistance, a Nazi camp survivor, and clandestine agent for the Spanish Communist Party. After repeatedly risking his life from the 1930s to the 1960s, he reinvented himself as a prolific writer who turned the extraordinary...