Which C.S. Lewis novel features the fictional society of Malacandra?

Out of the Silent Planet features the fictional society of Malacandra.

Published in 1938, the novel follows Elwin Ransom after he is abducted and taken to Mars, which the inhabitants call Malacandra. The book introduces several intelligent species and uses their societies to challenge assumptions about human superiority, colonialism, and moral progress. Lewis combined planetary adventure with philosophical and theological questions.

Malacandra is the name used within the novel for the planet commonly identified with Mars. Perelandra, the second book in the trilogy, takes place on Venus, while That Hideous Strength returns largely to Earth. The title does not refer to a silent or lifeless world in a literal scientific sense; it reflects the story’s imaginative cosmology and its view of Earth as spiritually “silent.”