This existentialist never finished the fourth volume of "Les Chemins de la Liberte", so it's a trilogy
... "As the uncompleted fourth volume of Roads of Freedom, now one of Sartre's... [DOC] [TLE] Last Chance Roads to Freedom IV by Jean Paul Sartre 1847065511 ... [PAR] The first English translation of Sartre's unfinished fourth volume of Roads of 
Freedom, exploring themes central to Sartrean existentialism.