Conan of Aquilonia is a collection of four linked fantasy short stories written by L. Sprague de Camp and Lin Carter featuring Robert E. Howard's seminal sword and sorcery hero Conan the Barbarian. The stories were originally published in Fantastic for August 1972, July 1973, July 1974, and February, 1975. The collected stories were intended for book publication by Lancer Books, but this edition never appeared due to Lancer's bankruptcy, and the first book edition was issued in paperback by Ace Books in paperback in May 1977. It was reprinted by Ace in July 1981, April 1982, November 1982, August 1983, July 1984, 1986, June 1991, and April 1994. The first British edition was published by Sphere Books in October 1978, and reprinted in July 1988. The book has also been translated into French
At the age of 60, King Conan of Aquilonia engages in his final struggle with his arch-foe, the black magician Thoth-Amon of Stygia, servant of the evil god Set. First Conan must journey to Hyperborea to rescue his kidnapped son Prince Conn from an unholy alliance of the Stygian sorcerer and the witch queen Louhi. Next Conan and Conn carry the struggle to their enemy's stronghold in Stygia itself at the head of an invading army and aided by the white druid Diviatix. Pursuing their defeated foe southward, they confront him again, first in the kingdom of Zembabwei and at last at the very edge of the world, where Conan and Thoth-Amon face each other in a final astral duel.