Only one human form could survive.
Sylvia Mencken was a Mortal, the most populous human form, with its passions and centuries of stubborn pride.
Alec Richmond, her lover was a Superior, one of the orphans of earth living in the shadows.
And then there were the Others, who sought to enslave them – whose alien acts of terror against the planet had already begun.
Based on Poul Anderson's short story "Incomplete Superman," 1950.
Genres: science fiction
Poul Anderson (1926–2001) was born in Pennsylvania of Scandinavian stock. He started publishing science fiction in 1947 and became one the great figures in the genre, serving as President of the Science Fiction Writers of America, winning many Hugo and Nebula awards, and also winning the Gandalf (Grand Master) Award.