Expanded and republished from the novella "A Twelvemonth and a Day', 1960. Also known as The Night Face (1978).

The Two Faces of Gwydion

The men on the spaceship Quetzal had a mission to perform, but everything indicated it would be a simple matter to set up a refueling station on the planet Gwydion. Advance explorations had already determined that the inhabitants of Gwydion were few in number and thouroughly amiable in their ways. In fact, such concepts as anger, thievery, murder and warfare did not exist for them. All that remained for the Quetzal was to find a suitable site and cement friendly relations.

But with the change of season and the bursting of the countryside into blossom, strange things began to happen. There was talk of a mysterious cycle and a day of danger. What was the secret the Gwydionites themselves dared not mention? How would it affect their spacemen visitors?

Published
1963
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Author

Poul Anderson

Poul Anderson's name is synonymous with the golden age of science fiction, a master of speculative worlds where the future is as vast and varied as the past. Born in 1926 in the United States, Anderson's journey as an author was shaped by his fascination with history, science, and the unknown. A child of the Great Depression, he was drawn to stories that stretched the boundaries of possibility, whether set in the stars or rooted in the depths of myth. Over the course of his career, Anderson built a reputation for crafting intricate narratives that blend hard science fiction with the richness of historical and fantasy elements, making him one…