Conan the Avenger is a 1968 collection of two fantasy works written by Björn Nyberg, Robert E. Howard and L. Sprague de Camp featuring Robert E. Howard's sword and sorcery hero Conan the Barbarian. It was first published in paperback by Lancer Books, and has been reprinted a number of times since by various publishers. It has also been translated into Japanese, German and Spanish. Source: Wikipedia (en)