Original sentence: At one time, adventure literature made this idea popular, and it was a feature of many fantasy and science fiction works as well as in some conspiracy theories
Edited sentence: At one time, adventure literature made this idea popular, and it was a popular feature of many fantasy and science fiction works as well as in some conspiracy theories.Lewis takes place on Earth, but an important part of its background is the hollow Moon, known by its inhabitants as "Sulva", in whose caverns a titanic struggle between the forces of Good and Evil is taking place.That Hideous Strength by C.The idea recurs in various other writings such as Edgar Rice Burroughs'  The Moon Maid and The Moon Men (1925), and The Lomokome Papers, Herman Wouk's less known single venture into Science Fiction (1947).The most well-known example is H.Wells's book The First Men in The Moon  and the films made on the basis of it