"The Sarvants have tasked Koynos with the job of surveying Mankind's impact on Rhea. If, after they hear his report, they decide that Humanity is irremediably flawed and dangerous, they will destroy Rhea before it can spread its 'infection' to the rest of the galaxy, and they may very well eradicate all life on Earth as well..."

In Jean de La Hire's original 1943 novel, "The King of the Night", translated by Brian Stableford, the Nyctalope travels to Rhea, a wandering planetoid inhabited by two warring races of ape-men and bat-men, and forces the two species to make peace.

In its all-new sequel, "Return of the Nyctalope", by Jean-Marc & Randy Lofficier, the Nyctalope returns to Rhea as it is about to leave the Solar System, and comes to grips with his own past while charting out a bold map for the future of Humanity.

Léo Saint-Clair, alias the Nyctalope, was created in 1911 by Jean de La Hire, one of France's most prolific serial writers. Gifted with night vision, hypnotic powers and an artificial heart, Saint-Clair was a fearless hero who battled a gallery of colorful super-villains. His adventures, which spanned 30 years, created a template that was later adopted by other pulp and comic-book heroes, and continue today in new stories, of which this is the most recent.