Which C.S. Lewis novel follows the space traveler Ransom to Venus?

The C.S. Lewis novel that follows space traveler Ransom to Venus is Perelandra.

Published in 1943, Perelandra is the second book in Lewis’s Space Trilogy, also known as the Ransom Trilogy. In the novel, Ransom travels to the planet Venus, called Perelandra, where he encounters a newly formed world and a conflict involving temptation and obedience.

The story expands Lewis’s science-fiction setting beyond the Mars-bound events of Out of the Silent Planet. Perelandra is not a conventional space-opera adventure; it combines planetary fiction with theological allegory, philosophical dialogue, and a retelling of themes associated with humanity’s fall.

The third volume, That Hideous Strength, shifts much of its action back to Earth and broadens the conflict into a critique of technocratic power. Readers sometimes reverse the trilogy’s titles, but Out of the Silent Planet comes first, Perelandra second, and That Hideous Strength third.