Perelandra (also titled Voyage to Venus in a later edition published by Pan Books) is the second book in the Space Trilogy of C. S. Lewis, set on the planet of Perelandra, or Venus. It was first published in 1943.
The second of Lewis's three science fiction novels: the alternative title Voyage to Venus is found in some editions. Dr. Elwin Ransom is called upon to make a second interplanetary voyage, this time to Venus, which turns out to be something close to paradise. But he has been summoned there for a reason...