This L. Sprague De Camp edited book is basically The Hour of the Dragon, with an intro, and a shot at putting together a map based on the work of a few people :-
The novel length Conan work. An aging Conan is now in a position of responsibility, being King of Aquilonia.
His reign is threatened by a very powerful sorcerer, whom Conan is unable to stop by mundane means, and must take himself off hunting for a mystic artifact.
Having done this, there is some wizard smiting to be done.
Top notch work.
5 out of 5