El unicornio (known in English as The Wandering Unicorn) is a 1965 fantasy novel by the Argentine author Manuel Mujica Lainez based on the legend of Melusine. Set in medieval France and Palestine of the Crusades, Mujica Lainez’s novel is a mixture of fantasy and romance which is narrated from the perspective of the shapeshifting Melusine. Source: Wikipedia (en)